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Myrstener, Erik. "Environmental impacts of early metallurgy in Moshyttan : A study of one of Europe's oldest blast furnaces, using three lakes records in Nora bergslag." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-64733.
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The aim of this study was to assess the environmental effects of Moshyttan, one of the earliest known blast furnaces in Europe (ca. 11th century). The study was based on the analysis of three lake records in the immediate surroundings of the smelter. Fickeln lies directly downstream and is the main recipient of waterborne pollution. Mosjökälla lies directly upstream and served as the main water reservoir for the water-powered bellows. Kramptjärnen lies 1 km to the NW in a separate catchment and acts as a reference. The data includes 31 elements analyzed by X-ray fluorescence spectroscopy (XRF), organic content inferred from loss on ignition (LOI), biogenic silica (BSi) modeled from Fourier-transform infrared spectroscopy (FT-IRS) for all lakes and diatom counts for Fickeln. Two other studies provided dating of slag from the smelter and pollen- and geochemical data from Fickeln. The results show that the metallurgy and associated activities (e.g. agriculture, forest grazing and charcoal production) led to eutrophication and alkalization in Fickeln. This is indicated by the diatom community that in the background is dominated by benthic genera indicative of oligotrophy and dystrophy (Frustilia, Brachisyra and Eunotia) that during the active smelter phase is replaced by pelagic genera indicative of eutrophy (Aulacoseira and Asterionella). BSi also decreases after smelter establishment, which speculatively could indicate an overall decrease in diatom production. At the same time, a suite of elements commonly associated with iron processing (Fe, Pb and Zn) increase in the sediment.
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Nilsson, Johanna, and Gina Virtanen. "Familjemåltiden i Bergslagen." Thesis, Örebro universitet, Restaurang- och hotellhögskolan, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-52961.
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Hovberg, Mikael, Ibrahim Abdulla Ahmed, and Sohlberg Jill. "Länsförsäkringar Bergslagen - Förutsättningar för komkurrensfördelar? :." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-13064.
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Sammanfattning Syfte Syftet med studien är att få en förståelse om hur LF Bergslagen arbetar för att generera konkurrensfördelar och om det finns en koppling till rådande teorier om ämnet. Slutligen vill vi komma med förslag på andra metoder som resulterar till konkurrensfördelar. Slutsats Länsförsäkringar Bergslagen arbetar med en bra strategi för att kunna skapa konkurrensfördelar. Deras största styrka ligger i att de är ett ömsesidigt försäkringsbolag. Det gör att de kan lägga stor fokus på sina kunder och med mycket resurser. Länsförsäkringar Bergslagen använder metoder som stämmer bra överens med de teorier som beskriver vad som krävs för att ha konkurrensfördelar. Att hitta alternativa metoder som kan skapa konkurrensfördelar åt Länsförsäkringar Bergslagen har varit svårt. Vi kommer med förslag till ett mindre tillägg som skulle kunna skapa en fördel för att skapa en bättre kundlojalitet.
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Rickan, Susann. "Lägersmål och lönskalägen i Bergslagen 1771-1830." Thesis, Högskolan på Gotland, Institutionen för humaniora och samhällsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-1446.
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Barnamordsplakatet (a Infanticide Proclamation) of 1778 was a circular allowing unmarried mothers to give birth at an undisclosed location without giving up the name of the father. The proclamation was supposed to ease the situation for the unwed mother in Sweden. The aim was to investigate whether women in Assembly of Hällefors, far from government and close to remote forest Finnskogen, was affected by the Infanticide Proclamation, between 1771 and 1830. Case studies has been done on people who had illegitimate children, if they were convicted, what the crime was and what the punishment was. The investigation is made at a local level and compared against national analyzes on the same theme. A lot of illegitimate children were born in Grythyttan nearby and slightly less in Hällefors, compared to other places of Sweden. Mothers and fathers were convicted in the district court for crimes, including, sexual intercourse between unmarried persons. More women than men were convicted. The cases in court with convicted for the second time, was culminating between 1800 and 1810. Infanticide Proclamation is immediately adapted in court. People's behavior changed before the law took effect when the amount of born illegitimate children outnumbered the amount of convicted mothers.
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Linnros, Henrik. "Mineraliseringar utmed REE-linjen i sydvästra Bergslagen." Thesis, Uppsala universitet, Berggrundsgeologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-227348.
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This paper briefly summarizes Bergslagen as a bedrock province in order to give background to the genesis and presence of REE-bearing minerals (short for Rare Earth Elements) in the region. These mineralizations mainly occur along the REE-line, a line aproximately a hundred kilometers in length between Norberg in the north and Nora in the south with a width of a few kilometers. Situated in the southwest of Bergslagen it is currently one of only a few places in Sweden where REE-bearing iron oxide mineralizations are potentially economically viable for mining. Ore microscopy has been conducted in order to characterize an ore sample from Myrbacksfältet, one of few sulphide rich iron oxide mineralizations within the REE-line. Additionally, an electron microscope analysis of a sample from Stålklockan, a suspected REE-bearing mineralization also within the REE-line was confirmed by EDS (short for Energy Dispersive Spectrum) analysis. An interactive map has been made of the REE- line to aid with visualization in an attempt to collect all known geospatial-, mineral- and bedrock information in one place. The map is available in PDF format in conjunction with this text. A static version of this map is presented under 4.1 (REE-linjen).Berggrundsprovinsen Bergslagens regionala geologi beskrivs inledningsvis för att ge bakgrund till de fyndigheter av REE-förande mineral (eng. Rare Earth Elements; Sällsynta jordartsmetaller) som förekommer utmed en ungefär hundra kilometer lång och ett par kilometer bred zon. Detta geografiskt och mineralogiskt avgränsade område kallas REE-linjen och ligger i sydvästra Bergslagen. I detta område mellan Norberg i norr och Nora i söder finns idag några av de få potentiellt ekonomiskt brytbara fyndigheterna av REE-förande mineral i Sverige vilket har gjort en kartkonstruktion vari spatiell-, mineralogisk-, och berggrundsdata över området finns sammanställd meningsfull. En sådan karta har gjorts i ArcGIS och presenteras i interaktivt PDF format i anslutning till texten. Malmmikroskopisk karaktärisering av en sulfidrik järnmalm från Myrbacksfältet i REE-linjen, såväl som en elektronmikroskopisk EDS (Energy Dispersive Spectrum) analys av ett prov från Stålklockan i Riddarhyttans malmfält har genomförts.
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Eriksson, Sandra, and Eva Hveem. "Vad gör egentligen besökarna på biblioteket? en användarundersökning på Filipstads Bergslags Bibliotek." Thesis, Högskolan i Borås, Institutionen Biblioteks- och informationsvetenskap / Bibliotekshögskolan, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20994.
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The purpose of this master thesis is to investigate what the users/visitors do at the Filipstads Bergslags Library when they are there. The questions we asked were "What do the visitors do when they are at the library?" and "How do the visitors give priority to the librarys services?" From these two questions we asked a third "How do the visitors view the library and its functions and what function do they see as the most important to them?" The method we used was a user study and we did this at the request of the management at the library. A questionnaire was constructed and handed out in a pilot study. We made some changes in the questionnaire before we started to hand it out at the library. We received a total of 224 questionnaires during a two week period. We found that most of the visitors were very traditional in their tasks at the library. They borrowed books and other media and read newspapers and magazines. When we classified our findings in gender, age groups, highest education and occupation we found that men read more newspapers and magazines than women do. They, on the other hand, borrow more books than men and they also visited the library more often. Only 25% of the visitors used the library computers. Most of the participants in the study showed a low interest in the various arrangements and conveniences the library offered. The visitors were only interested in a few cultural arrangements such as author evenings. The two library functions that really stood out were the cultural function and the information function. Our conclusions are that the visitors at Filipstads Bergslags library are very traditional in their activities and that they look upon the library as a cultural and informational institution.Uppsatsnivå: D
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Olsson, Fredrik. "Järnhanteringens dynamik : Produktion, lokalisering och agglomerationer i Bergslagen." Doctoral thesis, Umeå universitet, Ekonomisk historia, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1133.
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Abstract This thesis explores early modern industrial dynamics and especially the long-term performance of iron production and its localisation in Central Sweden during the period 1368-1910. Iron production, iron export and localisation in a national perspective as well as the regional industrial development in Central Sweden during the period 1805-1910 are studied. The production and localisation changes of the industry in the early modern period were investigated by processing easily available but scattered data. The study of the iron industry in the period 1805-1910 was based census data on employment structure in the Central Swedish parishes in four benchmark years, 1805, 1855, 1890 and 1910 and was carried out with the help of statistical cluster analysis. The first important result is that the Swedish iron export increased rapidly in the 16th the 17th centuries. This had to do with the breakthrough of bar iron which soon replaced the old form of iron called osmund iron. The export continued to increase up to the 1740s. From the 1740s there was stagnation till the 1820s when an expansion commenced and in the rest of the period under study the export grew fourfold. The distribution of iron production showed variations as to geographical patterns over time and there were rather distinct chronological phases as well. An expansion of established ironworks and tilthammers commenced in the end of the 16th century and reached its highest annual average in the 1630s. The localisation of new establishments in the 16th and early 17th centuries was mainly concentrated to the interior of Central Sweden. The localisation became more and more scattered over the country in the early modern period. Thus, the tendency towards diffusion outside the administrative Bergslagen became more and more obvious in the 18th century with new ironworks and tilthammers in Northern and Southern Sweden. In the late 19th century the number of industrial parishes had increased and so had the share of employed in manufacturing industry. Furthermore, the industrial parishes were concentrated to a large cluster which covered the inner parts of Central Sweden. However, the analysis of industrial branches also showed a diversification where the wood, paper and pulp industries and above all the metal industries were fast growers. The metal industries also proved a geographical closeness to the traditional iron and steel industry The second main outcome of the investigation has to do with the continuity concerning the localisation of the iron industry. The historical continuity and the confinement to a certain area are evident from the analyses of various localisation factors in which a number of logit-models were employed. The status of a parish as industrial at one time point was to a great extent decisive for its status as industrial at a later date. The existence of iron ore mining in the parish and if the parish was situated inside the institutional region of Bergslagen also enhanced the probability for it to be defined as an industrial community also long after the institutional regulation had been abolished in the 1850s. In a long-term perspective, the analysis revealed that there was a marked continuity between the early modern patterns of localisation of the iron industry and the localisation of the engineering industrial firms in the 20th century. However, the early modern localisation did not show a significant connection with the industrial parishes’ localisation in 1855, 1890 and 1910, which means that the results are not unambiguous. The third main result of the study is that geographical vicinity of communities to others with industrial activities contributes to industrial growth. In this way industrial communities tend to concentrate geographically and thereby to form clusters. For 1855 this was not significant but for 1890 it was evident. For 1910 it was shown that if a parish had more than one neighbouring industrial community, the probability of its being industrial was great. In a long-term perspective it seems that agglomerations of industrial activities form an environment which can cope with episodes of increasing transformation pressure in a better way than isolated units. Geographical concentrations which, historically seen, are characterised by “industry in the air” have a high propensity to adapt to changes in the industrial environment.
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Bergalm, Sofia, and Ingrid Dalme. "Kunskapsutbyte på Länsförsäkringar Bergslagen - En effekt av belöningssystem?" Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-144109.
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By understanding which factors that affect individuals´ will to share knowledge with others within an organization, companies can successfully develop a knowledge-based culture by influencing individuals´ attitudes and behaviour concerning knowledge sharing. Several researchers claim that intrinsic motivational factors can consistently facilitate knowledge sharing between individuals within an organization. Other researchers also assert that extrinsic motivational factors, such as reward systems, might affect individuals’ motivation to share knowledge. However, extrinsic motivational factors´ impact on knowledge sharing is a relatively unexplored field and more empirical studies are sought after. From this starting point this study is aimed, by conducting a case study of Länsförsäkringar Bergslagen (LF), to explore whether, and if so how, the reward system which applies to the sales force of private insurances at LF affects their motivation to share work-related knowledge with each other. The results of the study show that the reward system does not, in any distinguishable way, affect knowledge sharing between members of the sales force. Instead knowledge sharing, to a great extent, happens automatically due to the fact that the sales force enjoys sharing knowledge with each other. In this way they help each other to achieve their goals which brings about a sense of mutual satisfaction.
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Kritikos, Aristeidis. "Compositional Systematics of Sphalerites from Western Bergslagen, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-301099.
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Sphalerite is, apart from being the main global source of zinc (Zn), also one of the main source for the critical elements indium (In), gallium (Ga) and germanium (Ge), which can be extracted as by-products during Zn mining. In the westernmost part of the Palaeoproterozoic Bergslagen ore province, Sweden, In-anomalies have been reported from sulphide mineralizations. These In-anomalies can be attributed to either pre-ore formation crustal processes manifested by the local (Svecofennian, c. 1.87-1.89 Ga) syn-volcanic mineralisations, or to epigenetic metasomatic events primarily related to younger (c. 1.80-1.79 Ga) granitoids. In this study, sphalerite samples from 19 different mineralisations in westernmost Bergslagen were examined by both electron probe microanalyzer (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), in order to firstly, measure trace element concentrations, and especially those of the critical element In, Ga and Ge, and secondly, to apply this information to gain new information on the trace element inventory and incorporation mechanisms of sphalerite. The dataset also allows for testing the ore-formation process models, not least in cases of elevated In-contents. Utilization of these two analytical methods also provided the opportunity for a direct spot-to-spot comparison of their performance in detecting trace element concentrations in sphalerite. The results verify the In-enrichment of the area, whereas Ga and Ge only follow crustal abundancies. The concentrations of the other trace elements vary significantly, even at a sample scale. The compositional variation shows several patterns between certain elements, suggesting that their incorporation in the sphalerite lattice was allowed via substitution mechanisms (e.g. In3++(Cu+,Ag+)↔2Zn2+; Fe2++Cd2++Mn2+↔3Zn2+; Cu++Mn2++In3+↔3Zn2+). In contrast, some measured high Cd, Ag and Pb concentrations are attributed to nano (or micro) inclusions of primarily galena. Other elements such as As, Sn, Sb, Se, Au, Tl, Ni, Te and Mo yielded, in almost all the samples, concentrations below the detection limit for both analytical methods. Discrimination methods based on trace element concentrations and distribution of the In-enriched mineralizations suggest that the In-anomalies are most likely related to Svecofennian volcanic to subvolcanic hydrothermal processes, forming mineralisations that were later modified during the Svecokarelian orogeny. Finally, the direct comparison of EPMA results to that of LA-ICP-MS, showed the significantly better performance of the latter method in detecting trace-level concentrations, provided that a proper calibration procedure has been followed.Sulfidmineralet zinkblände är, förutom att vara den huvudsakliga globala källan för zink (Zn), också ett av de viktigaste värdmineralen för de kritiska metallerna indium (In), gallium (Ga) och germanium (Ge), vilka kan utvinnas som viktiga biprodukter vid zinkbrytning. I den västligaste delen av malmprovinsen Bergslagen i Mellansverige har In-anomalier rapporterats från flera mineraliseringar. Dessa lokala In-anrikningar kan tillskrivas antingen processer verksamma innan och under den vulkaniska aktiviteten, eller senare geologiska händelser relaterade till yngre graniter. I denna studie har zinkblände från 19 olika mineraliseringar i västra Bergslagen karakteriserats med två olika system för mikrokemisk analys; elektronmikrosond (EPMA) och laserablativ induktivt kopplad plasma-masspektrometri (LA-ICP-MS). Detta har gjorts för att mäta spårelementhalter, och särskilt då för de kritiska metallerna In, Ga och Ge. Genom att använda dessa två metoder parallellt gavs också möjligheten till direkta jämförelser mellan dem vad gäller deras kapacitet för spårelementanalys av zinkblände. Resultaten verifierar att detta område är anomalt In-anrikat, medan halterna av Ga och Ge är låga och endast följer genomsnittshalterna för kontinental jordskorpa. Halterna av de övriga spårelementen varierar avsevärt, även på individuell provskala, och visar i flera fall systematiska mönster mellan vissa element. Dessa mönster tyder på att deras införlivande i zinkbländestrukturen gått via flera specifika utbytes-(substitutions-)mekanismer (t.ex. In3++ (Cu+, Ag+) ↔2Zn2+; Fe2+ + Cd2++ Mn2+ ↔3Zn2+, Cu++ Mn2++ In3+ ↔3Zn2+). Däremot kan förhöjda halter av Cd, Ag och Pd tillskrivas nano- (eller mikro-) inneslutningar av framförallt blyglans. Andra element, som As, Sn, Sb, Se, Au, TI, Ni, Te och Mo uppvisade halter under detektionsgränserna för båda analysmetoderna i nästan alla undersökta prov. Bildningsmässiga (genetiska) diskrimineringsmetoder baserade på spårelementhalter kombinerat med de geologiska och spatiella relationerna för de In-anrikade mineraliseringarna tyder på att de senare bildades genom svekofenniska vulkanisk-hydrotermala processer och därefter modifierats under svekokarelsk bergskedjebildning. Slutligen, i den direkta jämförelsen av EPMA gentemot LA-ICP-MS, visade den senare metoden signifikant bättre kapacitet för spårämnesanalys, förutsatt att ett korrekt kalibreringsprotokoll har följts.
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Björkgren, Camilla, and Stina Walles. "Bergshög motivation : Motivationsfaktorer för fysisk aktivitet hos universitetsstuderande." Thesis, Luleå tekniska universitet, Hälsa och rehabilitering, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63556.
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Bakgrund: Det finns många kartlagda hälsoeffekter av fysisk aktivitet, bland annat minskar risken för hjärt- och kärlsjukdomar, högt blodtryck, cancer och metabola sjukdomar. Motivation kan beskrivas genom self-determination theory (SDT) som delar upp motivation i inre och yttre faktorer. En individ rör sig mellan ett kontinuum av motivationsfaktorer. Den inre motivationen är associerad med ett längre bibehållande av en aktivitet. En skillnad i motivationsfaktorer mellan idrottsutövare och motionärer har setts i tidigare studier. Det är intressant ur ett hälsopromotivt perspektiv att kunna identifiera vad som motiverar studenter till fysisk aktivitet. Syfte: Syftet med studien var att beskriva motivationsfaktorer för vardagsmotion respektive bergsbestigning hos studenter. Metod: Kvalitativa semistrukturerade intervjuer genomfördes med fyra studenter som bestigit Kebnekaises västra led någon gång de senaste tre åren. Materialet analyserades genom kvalitativ innehållsanalys. Resultat: Materialet från intervjuerna resulterade i fem kategorier: Välbefinnande för hela kroppen, Lust till aktivitet, Vänners uppmuntran, Få en gemensam upplevelse samt Testa sina gränser. Varje kategori representerade en viktig motivationsfaktor. Två av motivationsfaktorerna var gemensamma för såväl vardagsmotion som bergsbestigning. Konklusion: Motivationsfaktorerna skiljde sig åt beroende på aktivitet. Välbefinnande för hela kroppen representerar en motivationsfaktor för vardagsmotion. Motivationsfaktorerna Lust till aktivitet och Vänners uppmuntran var någotsom representerade både vardagsmotion och bergsbestigning. Faktorer som enbart sågs hos bergsbestigning hos informanterna var Få en gemensam upplevelse och Testa sina gränser. Det fanns även skillnad i motivationsfaktorer beroende på erfarenhet; mindre erfarna motiverades av att testa sina gränser och mer erfarna av att dela upplevelsen med andra.
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Andersson, Stefan. "Malmmikroskopering - en studie av sulfidmineral från Långbantrakten, Bergslagen, Sverige." Thesis, Uppsala universitet, Berggrundsgeologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-169481.
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De sulfidgruvor belägna i Långbantrakten som studien behandlar ligger i den västra delen av Bergslagen utanför Filipstad i Värmlands län. Opaka mineral (malm) från två mindre mineraliseringar, Näset och Getberget, har studerats med malmmikroskop och mikrosond för att beskriva mineralogin i området. Båda områdena domineras av olika (Cu-Fe-Pb-Zn)-sulfider, i Näset av kopparkis (CuFeS2), blyglans (PbS) och zinkblände ((Zn,Fe)S) och i Getberget av blyglans, zinkblände, kubanit (CuFe2S3) och magnetkis (Fe1-xS). I Näset finns en del mindre frekventa mineral, två olika faser av Co-pentlandit (en nickelrik och en utan nickel), gedigen Sb och Bi, (Ni-Co)-sulfid, breithauptit (NiSb) och magnetkis. Kubanit är även ett viktigt mineral som speglar mineraliseringens bildning. I Getberget finns liknande mindre frekventa mineral, kopparkis, nickelrik Co-pentlandit, gedigen Bi och Sb, silverglans (Ag2S), breithauptit och magnetit (Fe3O4). En sen utfällning av kubanit har skett i båda områdena och visar att mineraliseringarna har genomgått en liknande bildning och det stämmer även in på mineralogin, som även den är likartad.The small sulphide mines, Näset and Getberget that have been investigated are located just outside the main mineralization of Långban, near the city of Filipstad in Värmland County. Opaque minerals have been studied in reflected light microscopy and with an electron microprobe analysis to describe the mineralogy. Both areas are dominated by various (Cu-Fe-Pb-Zn)-sulphides, Näset with chalcopyrite (CuFeS2), galena (PbS) and sphalerite ((Zn,Fe)S) and Getberget with, galena, sphalerite, cubanite (CuFe2S3) and pyrrhotite (Fe1-xS). The sulphides are also accompanied by various accessory minerals, in Näset by two different phases of Co-pentlandite (on rich in nickel and one without), native Sb and Bi, a (Ni-Co)-sulphide, breithauptite (NiSb) and pyrrhotite. Cubanite is also a very important mineral that reflects the formation of the mineralization. In Getberget there are similar accessory minerals, chalcopyrite, nickel rich Co-pentlandite, native Bi and Sb, acanthite (Ag2S), breithauptite and magnetite (Fe3O4). A late precipitation of cubanite has occurred in both areas, suggesting that the mineralizations has been formed in similar conditions. This also holds true when comparing the mineralogy, which also is similar.
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Lindeberg, Tomas. "Alteration of the Bjursås Ore Field, Oxberg, Bergslagen District, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-267730.
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The Bjursås ore field is located within the Bergslagen domain of central Sweden just northwest of the town of Falun. The field hosts small scale mines such as the 17th century Floberg copper mine and has been the focus of mineral exploration on several occasions during the 20th and early 21th century, with no major economic deposits being uncovered as of yet. Currently being explored by Boliden AB, this thesis focuses on alteration patterns in the southern part of the ore field, near the village of Oxberg. Several drill cores provided by Boliden AB have been logged and lithogeochemical samples were taken in intervals to aid in identifying alteration patterns and correlation.Three lithological and chemostratigraphic profiles have been created along a northeastern trend and show that the dominant lithologies are volcaniclastic silt- and sandstones with subordinate segments of pumiceous breccia-sandstones. They are primarily rhyolitic and dacitic. Pyritic argillite sediments belonging to the Oxberg formation occur sporadically and sub-intrusive and sills of amphibolites are common. Impure limestones with abundant quartz grains and limited lateral extents are encountered and suggest that high clastic input dominated during times favourable for limestone formation. The limestones do not host any major base metal mineralisation and coupled with limited lateral extents, do not appear to be a favourable future exploration target within the area.Two main alteration styles are recognised to be present in Oxberg. The first is an MgO-rich biotite-corderite-anthophyllite alteration and is associated with a weak to moderate impregnation of sphalerite and galena. The second is a FeO-rich biotite-garnet-staurolite-corderite alteration associated with magnetite-garnet-actionolite ± diopside skarn. No base metal sulphides are associated with the FeO-rich alteration. The MgO-rich style is interpreted be analogous to a metamorphosed VHMS-style hydrothermal system with a wider strong sericite-quartz alteration in the footwall and Mg-chlorite-rich near vent pipe alteration. The intercepted interval with MgO-rich alteration is located in an interpreted hinge zone of a fold in the Central profile and is interpreted to be a conduit feeder pipe for hydrothermally circulating fluids. Future drilling of this structure to learn the extent of the MgO-rich mineralised zone is recommended as it may lead to a massive sulphide lens.The Large box plot is demonstrated to be a useful tool for vectoring towards mineralisation in the area and may prove useful in future exploration of the area. Samples of sericite-quartz altered rock and MgO-rich alteration plot along trends on the Large box plot with MAI values that increase in the strongly altered sericite-quartz footwall rocks while CCPI values increase in the MgO-rich feeder zone that hosts base metal sulphides.Six chemical groups are identified around the Oxberg area. Of particular interest is the dacitic-andesitic chemical group, specifically siltstones, which display the strongest MgO-rich alteration. These are proposed to be a stratigraphic target interval for exploration and may lead to future base metal sulphide mineralisation in the area as well as the Bjurås ore field as a whole.Bjursåsfältet ligger i Bergslagen strax nordväst om Falun. Vid Bjursåsfältet finns ett flertal hyttområden och mindre nedlagda gruvor, så som Flobergsgruvan som startades under 1600-talet. Området har varit i fokus för mineralprospektering vid flera tillfällen under 1900-talet och i början av 2000-talet men inga större mineraliseringar av ekonomiskt värde har hittats. Boliden AB undersöker för närvarande området och denna uppsats fokuserar på ett område inom Bjursåsfältet kring byn Oxberg. Omkring detta område har en stor omvandlingszon identifierats, men en detaljerad undersökning av denna zon har ännu inte gjorts. Mineraliseringar i berg beror ofta på att en fluid trängt igenom berget och av olika anledningar avsatt sitt metallinnehåll just där. Denna process leder vanligtvis också till att berget som fluiden trängt igenom omvandlas. En sådan omvandlingszon, som ofta är mycket större sett till volym än just själva mineraliseringen, kan agera som vägvisare för att nå fram till mineraliseringen.Borrkärnor som tidigare borrats inom detta område har karterats samt provtagits för kemisk analys med syfte att identifiera olika omvandlingsmönster och deras utbredning. Tre litologiska och kemiska tvärsnitt av underjorden har skapats utifrån borrkärnorna längs en nordöstlig trend. De visar att de dominerande bergarterna är utbrottsprodukter från olika vulkaner som var aktiva i området då bergarterna bildades. De är i första hand felsiska (ljusa bergarter, som exempelvis graniter) i sammansättning. Även lerrika sediment som tillhör Oxbergformationen förekommer sporadiskt och mafiska bergertar (mörka bergarter, som exempelvis basalt) samt orena kalkstenar förekommer i mindre utsträckning. Kalkstenar i Bergslagen är ofta associerade med mineralisering men detta verkar inte vara fallet kring Oxberg på grund av kalkstenarnas begränsade sidoutsträckning. Därmed föreslås kalksten inte vara ett gynnsamt mål för framtida prospektering i området.Två huvudsakliga omvandlingstyper är identifierade i Oxberg. Den första är en magnesiumrik biotit-corderit-antofyllit-omvandling som är associerad med en svag till måttlig impregnering av zinkblände och blyglans. Den andra är en järnrik biotit-granat-staurolit-corderit-omvandling i samband med magnetit-granat-aktinolit ± diopsid-omvandling. Inget zinkblände eller blyglans är förknippat med den järnrika omvandlingen. Den magnesiumrika omvandlingen gränsar till en bredare zon av stark sericit-kvarts-omvandling. Detta förhållande är utmärkande för en vis typ av malmbildningsprocess och en rekommendation är att titta närmare på just denna zon med hjälp av framtida borrningar.Utöver detta har två separata metoder identifierats vilka föreslås vara användbara för framtida prospektering av området. Metoderna baseras på kemisk provtagning av omvandlade bergarter och analysering enligt metoder beskrivna i denna uppsats.
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Viitamäki, Andreas. "Mineralogisk-mineralkemisk karakterisering av Nb-Ta-förande associationer från Kolsvapegmatiten, Bergslagen." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-428893.
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De två kemiskt nära besläktade metallerna niob (Nb) och tantal (Ta) räknas av Europakommissionen som kritiska råmaterial. Detta på grund av en kraftigt ökad efterfrågan och en geografiskt koncentrerad global produktion av dem. Det här arbetet utgör en del av ett större projekt som bedrivs av EuroGeoSurveys (EGS); GeoERA FRAME, som har till syfte att kartlägga förekomsten av kritiska råmaterial inom EU. Två granitpegmatitiska prov från Kolsva fältspatgruva har undersökts med avseende på deras kemi och mineralogi; dels sådana som tentativt identifierats som kolumbitmineral och dels sådana som innehåller ett samarskitliknande mineral. I arbetet har tre huvudsakliga analysmetoder använts: 1) optisk mikroskopi, 2) svepelektronmikroskopi (SEM) med energidispersiv mikrokemisk analys (EDS), samt 3) pulverröntgendiffraktionsanalys (XRD). De kemiska analyserna som genomfördes på ”kolumbit-proven” visade att de bestod av kolumbit-(Fe), med generell formel AB2O6 och med en järndominans i A-katjonposition och niobdominans i B-katjonposition. Analyserna visad även på förekomst av mineral tillhörande pyroklorsupergruppen. De samarskitartade mineralen uppvisade en partiell likhet med samarskitgruppmineral (generell formel ABO4), men med hög grad av metamiktisering, dåliga stökiometrier, låga REE-halter, samt med varierande järn- och kalciumdominans i tentativ A-katjonposition och niobdominans i B-katjonpositionen. Även aluminiumsilikater, mineral från spinellgruppen samt hematit påvisades. Uppsprickning av de metamikta och spröda samarskitartade mineralen har möjliggjort en fluidmedierad omvandling, vilket bl.a. lett till bildning av sekundär radiogen blyglans. Resultaten av undersökningarna bekräftar att Kolsvapegmatiten representerar ett lokalt niob-tantalmineraliserat system.The two chemically related metals niobium (Nb) and tantalum (Ta) are classified by the European Commission as critical raw materials. This is due to a highly increased demand and a limited global supply situation for these metals. This work is a part of a larger project run by EuroGeoSurveys (EGS); the GeoERA FRAME, which aims to map the distribution of critical raw materials in the EU. Two granitic pegmatite samples from the Kolsva feldspar mine were studied with regards to their chemistry and mineralogy. They had been tentatively identified as consisting of a columbite mineral and a samarskite-like mineral, respectively. In the project, three main analytical methods have been used: 1) optical microscopy, 2) scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS), and 3) powder X-ray diffraction analysis (XRD). The analyses performed on the “columbite samples” indicated that most of them were columbite-(Fe), general formula AB2O6, with an iron dominance in the A-cation position and niobium dominance in the B-cation position. The analyses also indicated the presence of minerals belonging to the pyrochlore supergroup. The analyses of the samarskite-like minerals yielded results showing a partial resemblance to the samarskite group minerals (general formula ABO4), but with a high degree of metamictisation, poor stoichiometries, low to very low REE contents, variable iron and calcium-dominance in a tentative A-cation position and niobium-dominance in the B-cation position. Aluminium silicates, minerals from the spinel group and hematite were also observed in this assemblage. Fracturing of the brittle, metamict samarskite-like minerals have enabled a fluid-mediated alteration, which a.o. led to the formation of secondary radiogenic galena. The study confirms that the Kolsva pegmatite represents a locally Nb-Ta mineralised system.
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Johansson, Philip. "Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-332979.
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Geophysical methods are frequently applied in conjunction with exploration efforts to increase the understanding of the surveyed area. Their purpose is to determine the nature of the geophysical response of the subsurface, which can reveal the lithological and structural character. By combining geophysical measurements with the drill core data, greater clarity can be achieved about the structures and lithology of the borehole. The purpose of the project was to give the student an opportunity to discover borehole logging operations and to have a greater understanding of the local geology, in particular the iron mineralizations in the apatite iron ore intersected by the boreholes. In order to do this, the student participated in performing a geophysical borehole survey and analyzing the results. These were combined with a drill core log in order to cross plot the results and increase understanding.Geofysiska metoder används ofta i samband med prospektering för att öka förståelsen av området. Utförda från ytan ger de en relativt god tolkning av vad som kan finnas på djupet och är även kostnadseffektiva jämfört med provborrning. Borrhålsloggning sker däremot efter att själva hålet borrats och ändamålet är ofta att utöka förståelsen om området omedelbart kring det loggade hålet. Genom att kombinera geofysisk fältdata med tolkning av borrkärnan kan man erhålla en ökad förståelse för borrhålets strukturer och litologi. Syftet med det här projektet var att utöka studentens förståelse inom borrhålsloggning, samt att avgöra hur relevant metoden är för att identifiera järnmineraliseringar i apatitjärnmalmen som kännetecknar norra Bergslagen
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Andersson, Stefan. "Deformation, metamorphism and remobilisation in the Hornkullen polymetallic deposit, western Bergslagen, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-223246.
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The polymetallic Hornkullen deposit is situated in the western part of the Bergslagen ore province, Sweden. It is hosted by an inlier of approximately 1.90-1.88 Ga Svecofennian volcanic and sedimentary metasupracrustal rocks enclosed in a significantly younger, c. 1.8 Ga TIB granitoid (Filipstad granite). Although being mined intermittently for silver during the last 100s of years in addition to been the subject for more recent exploration work, the genesis of this deposit and others in a similar geological position is poorly understood. The hypothesis is that the Hornkullen deposit represents a metamorphically overprinted, syn-volcanic Svecofennian mineralisation. The main ore assemblage comprises magnetite, pyrrhotite, galena, chalcopyrite and arsenopyrite with subordinate pyrite, sphalerite, ilmenite and löllingite. Pb-Fe-Ag-Sb sulphosalts include boulangerite, meneghinite, jamesonite, freibergite-tetrahedrite, pyrargyrite, and stephanite, which mainly occur in trace amounts. Gudmundite and molybdenite are rare accessories. Generally, galena, chalcopyrite and pyrrhotite have accommodated strain in a ductile manner. Locally, this can also be seen in boulangerite, meneghinite and sphalerite. Magnetite, arsenopyrite and pyrite frequently have been deformed in a brittle way. The contrast in competence resulted in the remobilisation of the more ductile minerals into fractures in the more competent minerals. In massive parts, this contrast also resulted in more fragmented clasts of competent minerals within a less competent matrix, similar to “ball ore” texture. Recrystallisation is particularly evident in magnetite and pyrrhotite but also seen in coarser aggregates of ilmenite. Additionally, these minerals and also pyrite and arsenopyrite frequently exhibit euhedral morphology when occurring within less ductile minerals. Inclusions of ore minerals in porphyroblastic garnet are abundant. Geothermobarometry of arsenopyrite and sphalerite suggests temperatures and pressures of 525°C (between 440°C and c. 590°C) and c. 300-400 MPa, consistent with regional Svecokarelian amphibolite facies metamorphism, albeit with some caveats. Fluid inclusion entrapment conditions were determined to c. 440°C (between 400°C and 600°C) and c. 280 MPa. The observed textures are a result of deformation and remobilisation of diverse ore minerals during the Svecokarelian orogeny. Remobilisation was possibly initiated during prograde metamorphism, followed by additional and more extensive modification during retrograde conditions, at least to temperatures below 200°C. Sulphosalt formation is considered to reflect an evolution from prograde through retrograde metamorphism, although most of them formed during the retrograde stage, including the Ag-minerals. No evidence for any additional introduction of elements from later TIB magmatism is present. The combined observations can most easily be reconciled with a metamorphically overprinted syn-volcanic Svecofennian mineralisation.Den polymetalliska mineraliseringen vid Hornkullen är belägen i västra Bergslagen i Mellansverige. Den uppträder i ca. 1,90-1,88 miljarder år gamla Svekofenniska metavulkaniska- och sedimentära ytbergarter inneslutna i en yngre, ca. 1,8 miljarder år gammal intrusiv bergart, så kallad Filipstadsgranit. Trots att mineraliseringen ganska nyligen varit ett mål för prospektering samt tidigare brutits på silver, saknas fortfarande information om dess malmmineralogi och hur den bildats. Hypotesen är att Hornkullen utgörs av en metamorft överpräglad synvulkanisk Svekofennisk mineralisering. Den domineras av magnetit, magnetkis, blyglans, kopparkis och arsenikkis och i mindre mängd pyrit, zinkblände, ilmenit och löllingit. Pb-Fe-Ag-Sb-sulfosalter finns lokalt och inkluderar boulangerit, meneghinit, jamesonit, freibergit-tetrahedrit, pyrargyrit, och stephanit. Gudmundit och molybdenglans är andra sällsynta accessoriska malmmineral. Blyglans, kopparkis och magnetkis har deformerats plastiskt men lokalt också boulangerit, meneghinit och zinkblände. Magnetit, arsenikkis och pyrit har deformerats sprött. Denna tydliga skillnad i kompetens har resulterat i att inkompetenta mineral ommobiliserats och kommit att fylla sprickor i de mer kompetenta mineralen. I massiva delar av mineraliseringen har denna skillnad även resulterat i en textur av kulmalmstyp. Granoblastisk omkristallisering är särskilt tydligt i magnetit och magnetkis, men även i grovkorniga aggregat av ilmenit. Vidare så förekommer dessa mineral liksom pyrit och arsenikkis ofta som euhedrala kristaller i mindre kompetent matrix. Inneslutningar av malmmineral i porfyroblastisk granat är vanligt förekommande. Geotermobarometri på arsenikkis och zinkblände gav temperatur och tryck på 525°C (mellan 440°C och ca. 590°C) och ca. 300-400 MPa, vilket överensstämmer med regional Svekokarelsk amfibolitfaciesmetamorfos. Förhållandena vid infångandet av synmetamorfa vätskeinneslutningar har uppskattats till en temperatur på ca. 440°C (mellan 400 och 600°C) och tryck på ca. 280 MPa. Merparten av de observerade texturerna är resultat av deformation och ommobilisering relaterad till de förhållanden som rådde under den Svekokarelska orogenesen. Ommobiliseringen av vissa mineral startades förmodligen redan under prograd metamorfos, vilket sedan följdes av mer omfattande modifikation under retrograda förhållanden, åtminstone till temperaturer under 200°C. Bildningen av sulfosalter reflekterar en utveckling från prograd till retrograd metamorfos där de flesta bildats under den senare, retrograda fasen, däribland de olika silvermineralen. Alla observationer resulterar sammantaget i tolkningen att Hornkullen är en regional-metamorft överpräglad och deformerad synvulkanisk Svekofennisk mineralisering.
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Gustafsson, Lars. "Vad händer i Bergslagen? : Mot småföretagande eller storindustrii ett ekonomisk geografiskt perspektiv." Thesis, Uppsala University, Department of Social and Economic Geography, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-98703.
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Quader, Kazi, and Sisi Jin. "Managing Selection and Retention of Employees : A Case Study on Länsförsäkringar Bergslagen." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12939.
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Research Question: How can a firm such as Länsförsäkringar Bergslagen utilize selection and retention methods to find and keep employees that add value to the organisation? Purpose: The purpose of this thesis is to describe and analyse the process of selection and retention and how it can affect organisations’ ability to select and retain staff that perform well and are an asset to the organisation. Method: Primary information was gathered from a face-to-face interview with the chief of personnel at LFB, as well as from a follow-up e-mail interview. Secondary information was gathered from books, journals and the web. The research is designed as a case study and the approach to analyzing data is qualitative. Conclusion: From the findings the authors conclude that by using selection methods with high predictive validity such as structured interviews, cognitive and personality tests, work samples and assessment centres, while at the same time considering how these methods affect the candidates attitudes and how well they allow for the candidate and employer to exchange views, values and goals, is the way firms can utilize selection methods in order to find staff that will add value to the organisation. LFB is using all these methods, except for work samples. Of the others remaining, structured interviews is the most common in LFB. On the perspective of retention, Länsförsäkringar Bergslagen has developed a performance-based system which takes an essential role on employee motivation, where recognition by offering growth opportunities is most significant in retaining key employees but is also most difficult to be conducted in LFB as growth opportunities are limited.
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Olsson, Fredrik. "Järnhanteringens dynamik : produktion, lokalisering och agglomerationer i Bergslagen och Mellansverige 1368-1910 /." Umeå : Department of Economic History, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1133.
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Eklöf, Sara. "Analogue Modelling of Ductile Deformation at Competent Lenses in Grängesberg, Bergslagen, Sweden." Thesis, Uppsala universitet, Berggrundsgeologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-220195.
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The Grängesberg Mining District (GMD) is located in the western part of the Bergslagen province in south central Sweden, and is the only known apatite-iron oxide mineralization south of Norrbotten. The Grängesberg deposit is the largest of the mineralizations along GMD and consists of a line of steeply to moderately dipping 20-100 m wide lenses extending to a depth of 1.7 km. It is hosted by felsic volcanic rocks that are phyllosilicate altered in the vicinity of the ore. Field relationships indicate that a competent granitoid was structurally emplaced on top of the ore during D2, and that the less competent phyllosilicate-rich host rocks accommodated large parts of the strain. These D2 structures described from the area around the ore bodies in Grängesberg include stretching lineation at the tapering edges of the lenses, asymmetric folds with opposite vergence along strike, sheath folds and possibly fold interference patterns. These structures are proposed to have formed in response to the competence contrast and the reverse movements on a large scale. The hypothesis is that the competence contrast between the competent ore and granitoid and the less competent host rocks could explain the formation and location of the key D2-structures in Grängesberg. To test the hypothesis, four analogue tectonic models were run in the centrifuge at the Hans Ramberg Tectonic Laboratory (HRTL), Uppsala University. The competent bodies were represented by an acrylic glass wedge with two lenses corresponding to the ore lenses, with an inclination of either 60° or 45° mimicking the approximate dip of the ore. Plasticine was used as the less competent host rocks. On the top surface, circles and squares were printed and used as strain markers. The models were run at c. 300-400 G until penetrative deformation and shortening ranging from 32.5 to 39.2% was reached. During centrifuging, the wedge indented the plasticine, resembling the possible deformation during thrusting of the deep granitoid. The models were then cut to reveal the structures formed, and one model was digitalized using the software Move. After shortening, the strain markers had deformed to show a change in direction of strain around the lenses. Vertical sections perpendicular to the shortening direction showed that stretching lineation developed between the lenses. Horizontal sections revealed asymmetric non-cylindrical folds with opposite vergence along strike and fold interference patterns. These results show that the observed field relationships were reproducible with the model setup, and that the competence contrast between the ore bodies, the granitoid and the host rocks could be the controlling factor for localization of shear and sites of stretching in the area.
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Ibrahim, Abdo, and David Kaya. "Effekter av belöningssystem och säljledare på försäljning av försäkringar – Försäljningsservice i Bergslagen AB." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-28339.
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Sammanfattning - ”Effekter av belöningssystem och säljledare på försäljning av försäkringar – Försäljningsservice i Bergslagen AB” Datum: 28 Maj 2015 Nivå: Kandidatuppsats i företagsekonomi, 15 hp Institution: Akademin för Ekonomi, Samhälle och Teknik, EST, Mälardalens Högskola Författare: Abdo Ibrahim David Kaya 1 December 1990 18 Maj 1990 Handledare: Esbjörn Segelod Titel: Effekter av belöningssystem och säljledare på försäljning av försäkringar – Försäljningsservice i Bergslagen AB Nyckelord: Belöningssystem, motivation, belöningar, prestationsbaserad lön, fast lön, prestationer, säljcoach, lön och löneformer Problem: Försäljningsservice i Bergslagen är beroende av sina försäkringsförmedlare för att kunna upprätthålla företagets försäljningsvolymer. För att få de anställda att arbeta mot verksamhetens uppsatta mål är det viktigt att rekrytera rätt personal men även att behålla nyckel personer i företaget. Belöningssystemet är en viktig del för att säkerställa detta. Belöningssystem innefattar bland annat belöningar som används för att styra medarbetarna mot att uppnå företagets syfte. Som ett ytterligare steg använder sig Försäljningsservice i Bergslagen av löneformerna prestationsbaserad lön och fast lön. För att motivera de anställda till att arbeta mer effektivt och öka sin försäljning, som gynnar det egna intresset, används den prestationsinriktade lönen. Utifrån detta valde vi att undersöka effekterna ut av belöningssystemet på försäljningskvantiteten samt prestationen och arbetstillfredsställelsen men även säljledarens påverkan på medarbetarnas försäljningsprestation. Syfte: Syftet med denna uppsats är att studera hur försäkringsförmedlarnas försäljningsvolym, prestationer och arbetstillfredsställelse påverkas av Försäljningsservice i Bergslagens belöningssystem samt säljledare. Metod: En fallstudie har utförts med grund i informationsinsamling från personliga intervjuer samt enkäter. Intervjuerna gjordes med delägaren och försäljningschefen på Försäljningsservice i Bergslagen, Elin Gustin samt säljledaren på Försäljningsservice i Bergslagen, Linnea Héléne. Enkätundersökningen riktade sig mot samtliga medarbetare på Försäljningsservice i Bergslagen. Slutsats: De slutsatser vi kommit fram till är att den prestationsbaserade lönen påverkar medarbetarnas försäljning positivt på grund ut av att den ökar motivationen. Även belöningarna är motivationshöjande och leder till ökade arbetsprestationer. Säljledaren påverkar via sitt arbete direkt säljarnas prestationer.Abstract –”Effects of the reward system and the sales leader in the sale of insurance – Försäljningsservice i Bergslagen AB” Date: 28 May 2015 Level: Bachelor thesis in Business Administration, 15 ECTS Institution: School of Business, Society and Engineering, Mälardalen University Authors: Abdo Ibrahim David Kaya 1st December 1990 18th May 1990 Tutor: Esbjörn Segelod Title: Effects of the reward system and the sales leader in the sale of insurance – Försäljningsservice i Bergslagen AB Keywords: Reward system, motivation, rewards, performance related salary, fixed salary, performance, sales coach, salary and forms of wages Problem formulation: Försäljningsservice i Bergslagen is dependent on their sales staff in order to maintain the company's sales volumes. To get employees to work towards the business goals it is important to recruit the right staff but also to retain key employees. The reward system is an important part in ensuring this. Reward system includes rewards that are used to control the employees to achieve the main purpose of the company. As a further step Försäljningsservice i Bergslagen uses forms of wages such as performance-based salary and fixed salary. To motivate employees to work more efficiently and increase their sales, which favors their own interests, they use performance-based salary. Based on this, we chose to examine the effects of the reward system on sales quantity, performance and job satisfaction, but also if the sales coach influence employee sales performances. Purpose: The purpose of this essay is to study how the insurance intermediaries’ sales volume, performance and job satisfaction are affected by Försäljningsservice i Bergslagens reward system as well as the sales coach. Method: A case study has been performed with basis in gathering information from personal interviews and a survey. Interviews were conducted with the co-owner and sales manager in Försäljningsservice I Bergslagen, Elin Gustin and sales coach in Försäljningsservice i Bergslagen, Linnea Héléne. The survey was handed to all employees in Försäljningsservice i Bergslagen. Conclusion: We came to the conclusions that the performance-based salary affect employee sales volumes positively because it increases motivation. The rewards are also motivating and leads to increased job performance. The sales coach also influence directly, through her work, the sales staff performances.
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Djup, Claes, and Ehsan Shams. "Relationen mellan den fackliga organisationen och företagsledningen Vid en organisationsförändring på Länsförsäkringar Bergslagen." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-37799.
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Gilljam, Päärt Oscar. "Petrophysic of the Host-rock to the Ore in the Lovisa Mine, Bergslagen." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354796.
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The Bergslagen region has three base-metal mines operating today, and one of them is the Lovisa mine, which host a Zn-Pb-Ag deposit. The Lovisa mine is located in the Guldsmedshyttan area north of Lindesberg. The mine is part of in the X-Mine H2020 project that includes four different mines with the aim of an improved environmental resource management. The project aims at reducing the environmental impact from transport, ore processing and chemical handling as well as result in lowering the costs per produced amount of metal. The purpose for this thesis is to determine the petrophysical characteristics of the host rocks to the thin tabular mineralised units in the Lovisa mine with petrophysics. Petrophysics is used to obtain information about the physical properties of rocks, which is then is integrated with geophysics and the geology, to obtain an improved understanding about the different geophysical anomalies. The petrophysic methods used here, reviled three different physical properties of the rocks: density, magnetic volume susceptibility and natural remanent magnetization. These properties were measured on five different drill cores and correlated with the literature data and lithologies of the core. The lithologies close to the ore correspond to literature data for volcanic siltstone, volcanic sandstone, massive rhyolite, skarn (calc-silicates) and dolomite. Dolomite is not present in the cores and corresponds to breccia, volcanic sandstone and skarn. My conclusion for this method, is that in order to do a lithological interpretation based on the measured petrophysical properties, is that a good knowledge of the lithologies as well as a good understanding of the geological processes that have affected the rocks in the investigated area are required.I Bergslagen finns det idag tre aktiva gruvor som bryter sulfidmalm, och en av dem är Lovisagruva som är en malmkropp Zn-Pb-(Ag)-malm. Lovisagruvan ligger i Guldsmedshytteområdet, norr om Lindesberg. Gruvan är en del av X-Mine-projektet som bl.a. undersöker små, komplexa malmkroppar i syfte att reducera miljöpåverkan och effektivisera produktionen. Syftet med detta kandidatarbete är att bestämma petrofysiska egenskaper hos lithologin i det malmnära sidoberget vid Lovisagruva. Petrofysik används för att ta reda på bergets fysikaliska egenskaper, och dessa egenskaper används sedan inom geofysik, för att få en förståelse för de olika avvikelser som visas i andra geofysiska mätningar. De petrofysiska mätningarna som utfördes, gav tre fysikaliska egenskaper hos varje prov, densitet, magnetisk susceptibilitet och den naturliga magnetiska remanensen. Resultaten från varje prov korrelerades sedan med litteraturdata och jämfördes med borrkärneloggar från Lovisa. De petrofysiska mätningarna utfördes på prover från fem olika borrhål. Resultatet visar att det malmnära sidoberget korrelerar med litteraturdata på vulkanisk siltsten, vulkanisk sandsten, kalksilikat, ryolit, skarn och dolomit. Dolomit finns inte i kärnorna utan representeras av bl.a. breccia, vulkanisk sandsten och skarn. Min slutsats är att det går att bestämma lithologin med dessa fysikaliska egenskaper, men man måste ha en god kännedom om vilka bergarter som förväntas att förekomma i området samt vilka geologiska processer som påverkat dem.
H2020 X-mine
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Turner, Tom. "Petrography, alteration and structure of the Bronäs Zn-Pb-Ag deposits, Bergslagen, Sweden." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-78822.
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This report aims to characterize the alteration styles and mineralization of the Zn-Pb-Ag Bronäs deposit, in the Sala area of the Bergslagen mining district, Sweden. It presents data collected through 237m of lithological logging and subsequent lithogeochemical data, which, coupled with thin section and SEM analysis has led to the first geological descriptions of the rocks in the deposit. The results are presented in the report through logs and a cross-section interpreted from these logs. The Bronäs deposit, mined between 1945 and 1962, is a satellite deposit to the well-known Sala mine, and similarly to the Sala deposit, it is hosted within an extensive marble unit interbedded with layers of felsic volcaniclastic material. The rocks in the area have first been dolomitized and then undergone regional metamorphism to greenschist facies at 1.87 Ga. There is a large granitic batholith to the south and east of the deposit, and a thin porphyritic intrusion with a complex geometry closely spatially associated with the mineralization. The marble unit is the host unit for the mineralization and is the most commonly occurring rock type in the study area. It is commonly quite impure and variably skarn altered throughout, with common gangue minerals including serpentine, chlorite, tremolite, diopside and phlogopite. The mineralized sections of the marble are spatially related to the skarn-rich areas of marble, and common sulphides include pyrite, galena and sphalerite. The interbedded volcaniclastic beds have a rhyolitic composition, and also contain Mg-silicates such as chlorite, tremolite and phlogopite, giving them a green colour too. The contacts between volcaniclastic and marble beds is often marked by contact skarns. The porphyritic intrusion has a granodioritic composition. It exhibits chilled margins, and the contact between it and the marble is often marked by increased skarn alteration in the marble. The feldspar crystals in the unit are zoned, with a white outer rim and a green to yellow sericitic core. The cross section shows that all the units are steeply dipping to the south-west, with steeply dipping stratabound lenses of mineralization in the marble, sub-parallel to the volcaniclastic beds in the north east. The south-western part of the section is thick uninterrupted marble. Lithogeochemical results have been divided into two groups – a distal group within this thick marble, and a proximal group close to the mineralization and volcaniclastic beds. The proximal zone is enriched in SiO2 and Al2O3 and depleted in FeO, MnO and MgO relative to the distal zone. The Mn and Mg values are enriched when compared to regional levels however. The proximal zone also contains more Pb, Zn, Ag, As and Sb than the distal zone, but contains lower amounts of Au and Cu than the distal zone. There is one hotspot in the distal zone which contains high concentrations of Pb, Zn, Ag, Au, Cu and Sb. The chemical signature is similar to the mined ore at Sala. The common occurrence of Fe, Mg and Mn-bearing skarn minerals near the mineralization suggests these elements should be higher in the mineralized zone, but skarn minerals are common throughout the study area, and the high levels of Si and Al in the mineralization zone could be diluting the other oxides. The lenses of mineralization are closely spatially related to the porphyritic intrusion however the intrusion is relatively minor in terms of size and is younger and unaltered. It could have followed an existing fault which was related to the mineralization though. Various examples of sulphide replacement and retrograde alteration can be seen, such as galena replacing amphiboles and barite. The similarity in mineralogy between regional metamorphic calc-silicates and ore-related skarn minerals makes it hard to differentiate between the two, however the presence of high temperature clinopyroxene indicates the deposit is likely a prograde metasomatic skarn deposit. This is backed up by a similar calc-silicate assemblage, mineralization style and replacement textures to those associated with skarn deposits. It is also spatially related to magmatism with mineralization occurring along lithological contacts.
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Jakobsson, Max. "Från industrier till upplevelser : en studie av symbolisk och materiell omvandling i Bergslagen." Doctoral thesis, Örebro universitet, Akademin för humaniora, utbildning och samhällsvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-7912.
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In old industrial regions traces from historical mining and production of iron and steel have become a valuable resource in developing a tourism industry and other experience-oriented industries in the post-industrial society. The so called Experience Industry became a buzz-word in regional development programs during the 2000´s. The region of Bergslagen in the middle of Sweden is a good example of this structural change in economy which has been going on since the crisis of the steel industry in the middle of the 1970´s. In the 1980’s, the region was seen as one of the most depressed areas in Sweden, together with the sparsely populated north. Because of that, cultural heritage has been promoted to strengthen regional identity in Bergslagen. Strengthening regional identity is still a matter in regional development in the region, but today efforts are more concentrated on commercial use and packaging of heritage as experience in order to create an attractive image of Bergslagen. Statistical data shows that the regional labour market is changing. During the 1990s and early 2000s employment in the Experience Economy in Bergslagen has increased by almost 30 percent. The emerging labour force is in many ways different from the traditional patterns on the regional labour market. Traditionally marginalized group, such as women, young people and immigrants are well represented. But they are often low educated, low paid and part-time employed. On the other hand we also find a growing well educated and well paid group of employees. They are often in-migrants or commuters from places outside the region. Campaigns to promote Experience Industries on the local level are common in many places in the region. Local campaigns tend to focus on tourism and the commercial use of the typical industrial heritage associated with Bergslagen. However, the regional identity is often considered a problem due to the negative image of Bergslagen which where formed after the crisis for the steel industry. Although there is a tendency towards a more positive approach to Bergslagen, developers and politicians often still claim that they rather use other local and regional identities in place marketing than being a place in Bergslagen.
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Dahlin, Peter. "Stratigraphy and Geochemistry of the Palaeoproterozoic Dannemora inlier, north-eastern Bergslagen region, central Sweden." Doctoral thesis, Uppsala universitet, Berggrundsgeologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-236872.
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The Palaeoproterozoic Dannemora inlier is situated in the north-eastern Bergslagen region. The inlier consists of primary and reworked volcanic deposits, stromatolitic limestone and skarn that have been subjected to upper greenschist facies metamorphism. Thicknesses of the different volcanic deposits indicate deposition within a caldera, where syn-volcanic alkali alteration was strong. The deposition was submarine and below wave base in the eastern part of the inlier, but above wave base in the central part where erosion channels together with cross-bedding occurs frequently. The Dannemora Formation is the volcanosedimentary succession of the inlier. Two borehole profiles, a northern and a southern, cover the whole Formation and show different alteration patterns. A strong depletion of Na2O and enrichment of K2O dominate in the southern profile, whereas this pattern is not as evident in the northern profile. The uppermost section of the totally eight constituting the Formation, is intercalated with ore-bearing dolomitic limestone and skarn, and has experienced at least two episodes of alteration. An anticline has been established lithogeochemically from immobile element ratios and the reoccurrence of an accretionary lapilli bed. Numerous altered sub-alkaline, calc-alkaline and basaltic dykes have been recorded in the Dannemora inlier. They are the result of mixing and fractionation of at least three magmatic sources and carry a mixed signature of subduction zone and within-plate volcanic tectonic setting. A seismic profile across the Dannemora inlier images a strong reflector package that dips c. 50° E to the east of the inlier. This package coincides with the polyphase, E-up reverse, brittle-ductile Österbybruk deformation zone (ÖDZ). Yet another steep reflector in the Dannemora ore-field extends to a depth of more than two kilometres. This reflector might represent either a deep-seated iron deposit or a fluid-bearing fault zone.
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Sahlström, Fredrik. "Stable isotope systematics of skarn-hosted REE-silicate - magnetite mineralisations in central Bergslagen, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-220862.
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The metasupracrustal-hosted, often polymetallic REE-Fe-deposits of Bastnäs-type are found along the “REE-line” in the Palaeoproterozoic Bergslagen ore province, south central Sweden. They essentially comprise REE silicate-bearing magnetite skarn mineralisations with variable contents of other metals. Even though these deposits have been important for mining and research for centuries, their origin still remains unclear. In this study, samples from 10 different deposits along the REE-line have been charactarised as to mineralogy, petrography and bulk geochemistry, in addition to their isotope systematics. Mineral separates of magnetite and, when present, co-existing quartz or carbonates have been analysed for their oxygen and (for carbonates) carbon isotope compositions, in order to put constraints on the sources for metals and fluids in these deposits. Magnetites have δ18O-values of -1.79 to 1.12 ‰, while quartzes lie between 7.19 and 8.28 ‰. Carbonates have δ18O-values between 5.77 and 7.15 ‰ and δ13C-values between -5.35 and -3.32 ‰. Thermometric calculations based on mineral pairs (magnetite-quartz, magnetite-calcite/dolomite), combined with available fluid inclusion data, indicate formation of primary magnetite assemblages between c. 650 to 400 °C. At these temperatures, magnetites from some of the deposits would have been in equilibrium with a magmatic fluid (δ18O = 6-8 ‰), while magnetites from other deposits would have been in equilibrium with fluids of lower δ18O (4-6 ‰). Oxygen and carbon isotope trends in carbonates can be explained by interaction between original host carbonates and a fluid of magmatic composition. The combined results indicate that the Bastnäs-type magnetite-REE mineralisations were deposited from an originally magmatic fluid at relatively high temperatures. At local scale, variable modification of the fluid isotopic composition can be explained by mixing with seawater-dominated fluids.
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Esbjörnsson, Thomas. "En jämförande kvalitativ studie av skol- och utbildningssyn hos gymnasieungdomar i Bergslagen respektive Örebro." Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76729.
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Det finns stora regionala skillnader i Sverige avseende skolprestation på gymnasienivå och i Bergslagen är utbildningsnivån låg. Ungdomars syn på skola och utbildning är sparsamt utforskad inom ramen för vetenskapliga studier. Publicerade resultat talar för att synen på skolan och kunskap inte är homogen utan uppvisar stora skillnader inom ungdomsgruppen. Man har tidigare beskrivit en könsrelaterad skillnad som bedöms bero på ett så kallat utbildningsmotstånd bland pojkar. Detta utbildningsmotstånd har också visat sig ha samband med socioekonomiska faktorer och uppväxt i traditionellt manliga arbetarmiljöer. I Bergslagen finns beskrivet en mentalitet som benämns »bruksanda«. Denna bruksanda är präglad av en manlig arbetarkultur och inkluderar ett utbildningsmotstånd och en stark identifikation med orten. Om och i så fall hur, denna bruksanda i Bergslagen påverkar ortens ungdomars syn på skolan är inte vetenskapligt utforskat tidigare. Det finns dock både internationell och svensk forskning inom andra geografiska områden som visat att grannskapseffekter när det gäller skol- och utbildningssyn kan finnas. Den här studien använder en fenomenografisk forskningsansats och utforskar gruppens gemensamma uppfattningar av utbildning. Gymnasieungdomar från två byar i Bergslagen har intervjuats om sin syn på utbildning, skolval, studieresultat och skolgång. Samma semistrukturerade intervjuer har även utförts med en grupp ungdomar från tätorten Örebro. Insamlad data från grupperna har analyserats var för sig och gett upphov till två separata utfallsrum vilka sedan även genomgått en jämförande kvalitativ analys. I analysen av kvalitéer i uppfattningar av utbildning identifierades tre tydliga skillnader mellan utfallsrummen. För det första var bergslagsungdomarna av uppfattningen att de önskade finnas kvar i det lokala geografiska området. För det andra uttryckte Bergslagsungdomarna en tydligare konkretiserad plan för vad gymnasieutbildningen skulle leda till. För jämförelsegruppen var målen mer temporära. För det tredje uttrycktes olika uppfattningar om vad som krävs för att lyckas i studierna. För Bergslagsungdomarna var ett tydligt mål och att man mår bra viktiga för att studierna ska fungera. För Örebroungdomarna handlade det om en kombination av egna goda lär-strategier och ”bra lärare”. Skolan förknippades med nyfikenhet och att utvecklas som person. De kvalitativa skillnader i utfallsrummen som identifierades mellan grupperna stärker hypotesen att bruksandan i Bergslagen kan bidra till en grannskapseffekt med avseende på ungdomars utbildningssyn. Sambanden är dock komplexa och sociala bakgrund och individuella skillnader beroende av kön eller andra personlighetsdrag kan inte uteslutas förklara resultatet. Ytterligare studier med målsättning att isolera och klarlägga grannskapets inverkan på utbildningssyn behövs för att möjliggöra eventuella utjämnande insatser och öka möjligheten till fullgjord gymnasieutbildning oberoende av bostadsort.
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Classen, Neele. "1000 years of environmental changes in Falun, Sweden : Lake Sediment as source material." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-61885.
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The aim of this study was to get a better knowledge of the metal pollution and the mining history of the Falun area. It adds new information on the geochemistry of the lakes and the beginning of mining in the Falun region, together with the influence of early land use. The main focus is on three lakes Hagtjärnen, Stugutjärnen and Nästjärnen, which were previously dated and analyzed regarding acidification by Anna Ek. Additional supporting information is provided from records from 10 other lakes, which are located at distances between 0-27 km from the Falun Copper mine. Another specific focus is on the lake Tisken, which has been assumed over the past 50 years to represent faithful historical record of mining in the Falun area. In this study this lake record was dated and analyzed, too. The analyses of all the lakes included resulted in four significant phases of environmental change, indicating the start of agriculture and mining, the development of each sector, as well as the sharp increase in pollution in the modern time period. Phase I covers the time period A.D. 700-1000 and represents the time of the early beginning of land use and small scale mining activities. Phase II represents the time between A.D. 1200 to 1450, which is dominated by an ongoing development of mining and a sharp increase in metal concentrations and occurrence of cultivated plants and plants favored by disturbance from A.D. 1450 onwards. The third phase, representing the year A.D. 1540, clearly displays another period of sharp increases among the metal concentrations, which coincides with a peak in Cu production volumes. Phase IV covers the time period A.D. 1750-1900, referred to as Modern time, and features a clear increase in Pb pollution, which is linked to the introduction of tetra ethyl Pb in the 1970s. Other metals increase also, together with cultivated plants like cereals, indicating an ongoing expansion of mining and agriculture. The results also indicate that Cu was not emitted as far as other elements, like for example Pb, which led to great pollution only in the lakes close to the Falun mine. Another important finding is that the lake Tisken does not represent a continual historical record, because the sediment is not a chronological sequence and instead likely represents mostly a catastrophic input of debris of mixed age. The C-14 dating shows, that the sediment is mixed and disturbed in Tisken. As a consequence, the long-standing interpretation of Tisken’s sediment record as an archive for the historical start and late development of mining at the Falun copper mine is incorrect
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Ölund, Ida, Josefin Bengtsson, and Beatrice Hallberg. "Svårighetem med att identifiera, definiera och kommunicera CSR. : En studie på uppdrag av Länsförsäkringar Bergslagen." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12445.
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ProblemSvårigheten som Länsförsäkringar Bergslagen upplever är att identifiera, definiera och kommunicera sitt samhällsansvar, då vi upplever att de har en viss osäkerhet med vad begreppet innefattar. SyfteSyftet med studien är att beskriva hur Länsförsäkringar Bergslagen arbetar med samhällsansvar idag. MetodVi har genomfört två kvalitativa intervjuer och flera strukturerade kortintervju för att samla in den empiriska datan. Den data vi har samlat in har sedan ställts mot teori i ett försök att besvara studiens syfte samt besvara studiens huvudfråga och delfrågor. SlutsatsLänsförsäkringar Bergslagen säger sig arbeta med CSR, men det uppkom under studiens gång att de inte är insatta i vad som innefattas i begreppet. För att försöka identifiera och definiera sitt ansvar tror vi att de som första åtgärd behöver se hur andra aktörer inom samma bransch väljer att arbeta med CSR. Detta för att få en förståelse för vad som kan innefattas i begreppet, inom den verksamheten de verkar.
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Nordström, Albin. "Malmbildande processer och Bergslagen : - Med exemplifiering från en silver-rik sulfidmineralisering vid Dammen nära Dannemora." Thesis, Uppsala universitet, Berggrundsgeologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-175775.
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Den här rapporten beskriver malmbildande processer och Bergslagens malmgeologi. En beskrivning av malmmikroskopet ges tillsammans med identifikationskriterier för de mineral som påträffats i en mikroskopisk studie som gjorts på fyra stuffer från Dammen nära Dannemora, inkluderande vanliga och påträffade malmtexturer. Två av proverna analyserades med mikrosond.This report gives a description of ore-forming processes and an introduction to Bergslagen ore-geology. The polarization microscope is described together with a number of identification-criteria of specifik minerals found during a study of four geological specimens from Dammen close to Dannemora, including a description of common ore textures. Two of the samples were also analyzed with an electon probe microanalyzer
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Jansson, Nils. "The origin of the Ryllshyttan stratabound Zn-Pb-Ag-(Cu) + magnetite deposit, Garpenberg, Bergslagen, Sweden." Licentiate thesis, Luleå, 2009. http://www.ltu.se/forskning/1.16009?pureId=3378647&pureFamily=dk.atira.pure.families.publication.shared.model.Publication.
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Ghaderidosst, Joanna. "Malmmikroskopi, SEM-EDS- undersökning och framställning av polerprov från en sektion av Lovisagruvans sulfidmalm, Bergslagen." Thesis, Uppsala universitet, Mineralogi, petrologi och tektonik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-383525.
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I detta arbete har polerprov framställts för att därefter undersökas med malm- och svepelektronmikroskopi (SEM) med energidispersiv röntgenspektroskopisk analys (EDS). Med dessa metoder har mineralsammansättning, strukturer och texturer identifierats och undersökts. De undersökta proverna kommer från borrkärnor genom malmzonen i Lovisagruvan i Bergslagen, södra Mellansverige. Malmen är en tabulär, silverförande Zn-Pb-sulfidmineralisering. De kombinerade undersökningarna av polerproven visar att de huvudsakligen består av zinkblände, blyglans, kvarts, mikroklin, granat, amfibol och pyrit, vilka karakteriseras av texturer som visar på omkristallisation, heterogen deformation och lokal remobilisering. De uppvisar småskaliga texturer som sannolikt är direkt relaterade till uppkomsten av s.k. kulmalmstextur. De ingående mineralens inbördes relationer tyder på att blyglans och zinkblände bildades samtidigt och därefter, under regionalmetamorfa förhållanden, tillväxte pyrit och granat som porfyroblaster. Majoriteten av texturerna och strukturerna är sekundära och visar på en kraftig senare överprägling av malmen genom metamorfos och flerfasig deformation under olika tryck- och temperaturförhållanden.In this project polished sections have been prepared for study by means of ore and scanning electron microscopy (SEM) with energy dispersive x-ray spectroscopy (EDS). The application of these methods allows mineralogy, structures and textures to be characterized. This was done within the EU H2020-funded project X-Mine. The studied samples are from drill cores transecting the ore zone of the Lovisa mine (Lovisagruvan), which is located in Örebro County in the Bergslagen ore province, south central Sweden. Here, a tabular, stratiform silver-bearing Zn-Pb sulphide ore is mined. Studies of the polished ore sections show that the samples mainly contain sphalerite, galena, quartz, microcline, garnet, amphibole and pyrite, characterized by textures of recrystallisation, heterogeneous deformation and localized remobilization. The studied samples from the main ore and exhibit textures directly related to the formation off the so-called ball ore. The textural interrelationships of the major minerals indicate that galena and sphalerite formed penecontemporaneously, and then under regional metamorphic conditions, pyrite and garnet formed as porphyroblasts. The majority of the present textures and structures are secondary, representing different stages of metamorphism and deformation under variable P-T-conditions, post-dating original ore formation.
Real-Time Mineral X-Ray Analysis for Efficient and Sustainable Mining, H2020 X-Mine, Projekt-id: 730270
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Orbe, Ragna. "Karakterisering av REE-förande mineral från Flintgruvan: en sydlig utlöpare av Falufältet i norra Bergslagen?" Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-301156.
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Bergslagen är känt för sin mångfald av mineraliseringar liksom sällsynta element och mineral. Speciellt pegmatiter och vissa skarnförekomster har förhöjda koncentrationer av sällsynta jordartsmetaller (REE på engelska) och REE-förande mineral. Pegmatitprover från Flintgruvan, som ligger i norra Bergslagen (Dalarna), karakteriserades i den här studien. Proven som studerades innehöll flera REE-förande mineral; (Y,REE,U,Th)-(Nb,Ta,Ti)-oxider av AB2O6-typ, xenotim-(Y) och (Y,Yb)-förande thorit. Pegmatiten klassificerades som varandes av NYF-(Niob-Yttrium-Fluor) typ på grund av de förhöjda koncentrationerna av niob (Nb), yttrium (Y) och titan (Ti) i de undersökta faserna. Förutom yttrium så innehöll pegmatiten små koncentrationer av andra HREE (tunga sällsynta jordartsmetaller) som ytterbium (Yb) och dysprosium (Dy). (Y,REE,U,Th)-(Nb,Ta,Ti)-oxiderna innehöll även relativt höga halter av kisel (Si). På basis av de kemiska analyserna representerar dessa strakt omvandlade faser antingen aeschynit eller polykras som ursprungsmineral. Undersöknings- och analysmetoderna som användes i studien var polarisationsmikroskopi och svepelektronmikroskopi med energidispersiv spektroskopi (SEM-EDS).Bergslagen is known for its diversity of rare elements and minerals. Especially granitic pegmatites and some uncommon types of skarn deposits have shown higher concentrations of rare earth elements (REE) and REE-bearing minerals. Samples of a granitic pegmatite from Flintgruvan, which is located in northern Bergslagen (Dalarna), were characterized in this study. The samples that were studied were found to contain several REE-rich minerals such as (Y,REE,U,Th)-(Nb,Ta,Ti) oxides of AB2O6 type, xenotime-(Y) and an Y+Yb-bearing thorite. The most abundant AB2O6 type oxides were found to represent strongly altered minerals, either belonging to the aeschynite or polycrase group. Based on mineral chemical studies, the pegmatite was classified as being of the NYF (Niobium-Yttrium-Fluorine) type due to the predominance of yttrium (Y) and niobium (Nb) as well as notable titanium (Ti) concentrations. Other than yttrium the samples contained small concentrations of other HREE (heavy rare earth elements) such as ytterbium (Yb) and dysprosium (Dy). The (Y,REE,U,Th)-(Nb,Ta,Ti) oxides also contained a relatively high content of silicon (Si). The mineralogical characterization was done by means of reflected polarized light microscopy and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS).
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Jansson, Nils. "The origin of iron ores in Bergslagen, Sweden, and their relationships with polymetallic sulphide ores." Doctoral thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25865.
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The Bergslagen mining district of southern Sweden is one of Europe’s classic mining districts with more than 1 000 years of mining history. One of the typical features of Bergslagen is a spatial association between Zn-Pb-Ag-(Cu-Au) sulphide deposits and magnetite-rich Fe oxide deposits. The relationship between these two deposit types has been discussed intensely for more than a century, yet there are still many uncertainties to be resolved. In this thesis, the origin of Fe oxide deposits in Bergslagen and their relationship with polymetallic sulphide deposits is investigated. Detailed investigations have been undertaken at a number of Fe oxide and polymetallic sulphide deposits in the Garpenberg and Stollberg areas, where sulphides and Fe oxides are spatially associated. The deposits studied at Garpenberg include the Ryllshyttan stratabound Zn-Pb-Ag-(Cu) + magnetite deposit, the Smältarmossen calcic Fe skarn deposit, the Lappberget stratabound Zn-Pb-Ag-(Cu-Au) deposit and stratiform Fe-rich exhalites near the Ryllshyttan deposit. At Stollberg, the investigation has mainly focused on studying the regional geological framework of the ore deposits. The research project was based on detailed geological mapping and drill core logging. The ores, their host rocks and the associated hydrothermal alteration envelopes have been further studied by a combination of optic microscopy, electron microprobe mineral chemical analysis, radiometric dating and whole rock lithogeochemical analysis. The results reveal that several different types of Fe oxide deposits may be defined in the Garpenberg and Stollberg areas 1) synsedimentary-exhalative Fe oxide deposits, 2) carbonate replacement-type deposits that are locally spatially associated with polymetallic sulphide deposits, and 3) contact metasomatic Fe skarn deposits proximal to syn-volcanic intrusions. For most of the studied ore deposits, several different stages of ore formation or modification of pre-existing ores are recognized, based on textural evidence and cross-cutting relationships between hydrothermal alteration, stratigraphy, intrusive events and structures. Zoning in ore metals, mineralogy and alteration geochemistry occurs both on deposit-scale and on a regional scale in all studied areas. The zonation patterns have been studied in detail in an attempt to elucidate whether geochemical, mineralogical and mineral chemical vectors may be identi¿ed, which would aid mineral exploration where Fe oxide and polymetallic sulphide deposits co-exist. Radiometric dating indicates that the studied deposits at Garpenberg, despite being markedly different from each other in style and setting, formed during a short time span at 1892 ±4 Ma. The possibility that all studied deposit-types formed at slightly different times and/or at different depths within a large igneous system is explored. Based on stratigraphic evolution, the distribution and character of hydrothermally altered zones as well as the characteristics of the ore deposits themselves, it is inferred that the sequence of ore types 1-3 above reflects generally increasing depths of ore formation and/or proximity to causative intrusions. Documented overprinting relationships and the co-existence of all deposits at similar stratigraphic levels indicate that multiple stages of ore formation during active volcaniclastic sedimentation, burial and intrusion of magmas to shallow crustal levels in an evolving extensional basin must be considered. Continuous burial during volcaniclastic sedimentation in an extensional tectonic setting (e.g. a backarc basin on continental crust) combined with the frequent intrusion of magma to shallow crustal levels, resulted in the stratigraphic succession hosting stratiform Fe oxide mineralization (type 1) being subjected to seawater-dominated hydrothermal convection cells. This led to formation of type 2replacement-style Fe oxide and polymetallic sulphide mineralizations. During continued burial, these deposits were subsequently affected by local or widespread intrusion-associated metasomatism that formed contact metasomatic Fe skarn deposits. The ores were later subjected to polyphase ductile deformation under low P amphibolite facies metamorphic conditions during the Svecokarelian orogeny. The polymetallic sulphide ores especially, were substantially modi¿ed and remobilized in the hinge zones of folds, into ore shoots parallel with axial surfaces and locally into the ENE-trending, sheared short limbs of folds. Sulphide remobilization partly coincided with retrograde alteration of anhydrous, Fe-rich skarns to more hydrous, magnetite-rich skarns, thus locally leading to the formation of high-grade magnetite mineralization proximal to massive sulphide deposits.Godkänd; 2011; Bibliografisk uppgift: Härtill 6 uppsatser.; 20110511 (niljan); DISPUTATION Ämnesområde: Malmgeologi/Ore Geology Opponent: Professor Paul Spry, Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa, U.S.A. Ordförande: Adjunct professor Rodney Allen, Boliden Mineral, Exploration Department/ Luleå University of Technology, Sweden. Tid: Tisdag den 13 september 2011, kl 10.00 Plats: F341, Luleå tekniska universitet
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Fahlvik, Anton. "Hydrothermal alteration and lithogeochemical marker units at the Svärdsjö Zn-Pb-Cu deposit, Bergslagen, Sweden, and their implications for exploration." Thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-71762.
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In exploration, a lithogeochemical approach can be used to aid the characterisation of rocks surrounding metamorphosed and hydrothermally altered deposits. Accurate description of the geological setting of deposits is crucial for understanding the ore forming processes and identifying targets for exploration. The Svärdsjö Zn-Pb-Cu deposit is located in the heavily mineralised and metamorphosed Bergslagen ore province of south-central Sweden. The deposit and surrounding minor occurrences were actively mined for over 500 years, producing more than 1 Mt of Zn-Pb-Cu-Ag massive sulphide ore. The combination of strongly metamorphosed and hydrothermally altered rocks in Svärdsjö makes geological interpretation challenging. Therefore, an approach combining lithogeochemical and petrographic methods is used in this study. The characterisation of the rocks and hydrothermal alteration surrounding the deposit allowed for an interpretation of ore formation and its implications for further exploration in the Svärdsjö area. The results verified that the Svärdsjö mineralisations are hosted by 2–15 m thick dolomitic marble units, commonly altered to skarn. Surrounding the deposit are subvolcanic intrusions and volcanoclastic rocks of mainly dacitic composition. The combined approach also helped identifying a strong to intense hydrothermal chlorite-sericite alteration enveloping the mineralised marble units and resulted in large mass gains of Fe and Mg whereas Na was depleted. Multiple episodes of alteration and metamorphism are evident from cross-cutting relationships with less altered dykes and overprint by metamorphic minerals such as cordierite and anthophyllite. An ore formation model involving sub-seafloor volcanic-associated replacement is suggested for the Svärdsjö deposit based on (i) the presence of a zoned hydrothermal alteration system within a volcanoclastic rock sequence and (ii) the irregular stratabound sulphide lenses hosted by thin marble units in the centre of the alteration system. Additionally, it is inferred that the stratabound nature of the deposit is caused by the neutralisation of a hot acidic fluid, resulting in precipitation of the sulphides within the marble. Finally, two geochemically distinct lithological units have been identified adjacent to the mineralised zones, providing new, larger exploration targets in the area. Mass change calculations reveal that Fe and Mg enrichment and Na depletion are useful vectors towards mineralisation, with detectable changes extending for up to 100 m from the mineralised lenses. These findings showcase the usefulness of the incorporation and careful interpretation of lithogeochemical data when exploring for metamorphosed hydrothermal ore deposits in mineralised provinces of the Fennoscandian Shield or elsewhere in the world.
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Romlin, Fredriksson Victor. "Material och lager vidtillverkning av rostfri tråd- en studie av fysisk materialhanteringi ett trådvalsverk i Bergslagen." Thesis, KTH, Tillämpad maskinteknik (KTH Södertälje), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125060.
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Yehuwalashet, Ezra. "Gravity and Magnetic Survey, Modelling and Interpretation in the Blötberget Iron-Oxide Mining Area, Bergslagen, Sweden." Thesis, Uppsala universitet, Geofysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305964.
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The Blötberget mining area, the focus of this MSc project, is located about 230 km northwest ofStockholm and 12 km southwest of the city of Ludvika (central Sweden). The mining area has beenknown since 1600 for its various types of mineralization particularly iron-oxide deposits (magnetite andhematite) with the mining commenced in 1944. Previous geoscientific research in the area providesdetailed information about lithological variations and structure of the bedrock near the surface.However, knowledge of the depth extent of the mineral deposits and their host rocks is limited. To shedlights on these issues and support deep mineral exploration potential in the study area, within the recentlylaunched StartGeoDelineation project, new ground gravity data, 180 data points on average 150 m apart,were collected during two field campaigns in 2015 and 2016. Aeromagnetic data were obtained fromthe Geological Survey of Sweden (SGU) to complement the ground gravity measurement interpretationsand modelling. After a careful inspection of the field gravity data, they were reduced to completeBouguer anomaly with a maximum error estimate of about 0.6 mGal due to uncertainty in theinstrumental drift, slab density, geodetic surveying, diurnal variations and terrain (or topography)correction. The Bouguer gravity data after separation of regional field (second order polynomial at theend was used) were used (~ 8 mGal range) for interpretation and 3D inverse modelling. Clear anomalouszones are noticeable in the gravity data particularly due to mineralization and a major boundaryseparating a gravity low from gravity high in the southern part of the study area likely representing afault boundary separating two different lithological units. In my study, both forward and inversemodelling using rudimentary objects/shapes and voxel-type (mesh) approach were carried out. Effect ofinitial and reference models were tested on both gravity and magnetic datasets. While the constrainedmodels have still significant ambiguity, they help to suggest structural control on the location ofmineralization and may allow estimating an excess tonnage due to the presence of mineralization in thestudy area. Due to access limitations (e.g., unable to measure on the water-filled pit) the gravity modelis sensitive to the measuring positions and constraints using known shape of mineralization was not atthe end successful to overcome this. Collecting more gravity data on the target area and repeated test of3D inversion by adjusting the inversion parameters might help to improve the final result.Gruvområdet Blötberget som denna MSc avhandling är fokuserat kring ligger 230 km från Stockholm,12 km från Ludvika, i Bergslagen. Mineralförekomster, framförallt järnmalm (magnetit och hematit)har varit kända i området sedan 1600-talet, och storskalig brytning inleddes år 1944. Tidigare geologiskaundersökningar i området har gett detaljerad information om fyndighetens ytnära litologi och struktur.Hur långt ner förekomsten och moderbergarten sträcker sig har dock varit okänt. Som del av detnystartade projektet StartGeoDelineation utfördes marknära gravimetrimätningar. Totalt 180 mätpunkter,med ett medelavstånd av 150 m, samlades in under två fältkampanjer under 2015 och 2016.Vid modellering komplementades gravimetridata med magnetometridata, insamlad under flygmätningarutförda av Sveriges geologiska undersökningar (SGU). Efter noggrann bearbetning av gravimetridatatogs den kompletta bougeranomalin fram. Det uppskattade felet är ca 0.6 mGal och är till följd avosäkerhet i korrigeringar för drift hos instrument, dygnsvariation, geodesi och topografi. Efter korrigeringav regional trend (uppskattad från 2:a ordningens pylonom, och med satt skala av 8 mGal somresultat) gjordes en 3D modell, via inversionsalgoritmer, samt en tolkning. Det står klart av framförallti gravimetridatan att det finns två avvikande zoner. Dessa indikerar mineraliseringen och en gräns i densödra delen av undersökningsområdet med gravimetridata i låg respektive höga värde. Detta återspeglartroligtvis också en förkastningszon mellan två lithologiska enheter. I denna studie har enkla geometriskaformer och voxlar (mesh) använts för bådadera forward modellering och inversionsalgoritmer. Deursprungliga och referensmodellerna testades på både dataset för gravitmetri och magnetometri. Trotsatt modellerna fortfarande visar tvetydiga resultat så kan de ändå användas för att ge förslag på struktureroch läge för mineraliseringen, och skall även kunna användas för att uppskatta tonnage. Det sistnämndakunde dock inte uppnås då punktäthet i mätdatan, till följd av att det numera vattenfyllda dagbrottet intekunde inkluderas i mätområdet, och att formen av mineraliseringen inte kunde avgränsar på etttillfredsställande sätt. För en förbättring av resultaten bör fler mätpunkter till gravimetridata samlas in iområdet så att 3D-modelleringen kan förbättras genom upprepade justeringar av inversionsparametrarna
StartGeoDelineation
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Raninen, Linn. "Metallförorenade bottensediment : En undersökning av fem sjöar påverkade av metallutvinning i Bergslagen och i Västerbottens inland." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-133405.
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This study aims to assess the potential environmental risks posed by sediments in five lakes affected by present or historical metallurgy. Special attention is paid to the lakes Dammsjön and Värlingen in mid Sweden, where the sediments were contaminated after a breach in a nearby tailings dam used for storing residue from a metal processing plant. The sediments were examined for their metal content by X-ray fluorescence spectroscopy (XRF) analysis of loose powder samples. A subset of the samples from Dammsjön and Värlingen was also used for a simple pH-analysis and an experimental XRF analysis of evaporated leachate. To obtain a larger variety of samples for the XRF analysis of evaporated leachate, loose powder sediment and leachate from three additional lakes affected by extractive metallurgy, Tisken, Gruvsjön and Storjuktan, were likewise examined with XRF. The sediments from all lakes contained high levels of metals, and environmental standards for Pb (in all lakes) and Cd (in Storjuktan) were exceeded. The leachate tests showed that metals can be extracted using this method, including Cu and Ni in lake Tisken. This might indicatehigher bioavailability, but further studies are needed to confirm this interpretation. Dammsjön andVärlingen are contaminated by several metals, including Hg and As. The pH-analysis indicated that the deposited sediment is not the source of the prolonged low pH in Dammsjön, and that another source, possibly continued leaks from the tailings dam, needs to be found. The results call for close environmental monitoring, to minimise further contamination and damage to the environment.
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Sahlström, Fredrik. "Ore Petrography and Geochemistry of some REE-bearing Fe-oxide Assemblages from the Idkerberget Deposit, Bergslagen, Sweden." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-182875.
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The mine dumps of Kiruna-type apatite-iron oxide ore in Bergslagen, South Central Sweden, contain elevated amounts of rare earth elements (REEs). A recently started project at Uppsala University has been initiated to study these ores among others in order to document occurrences of REEs and other critical elements in the mine dumps. In this study a selection of samples from the Idkerberget deposit have been studied with respect to their geochemistry and petrography with a special focus on REE-bearing phases. In addition, their mining potential and their relationship to related ore deposits such as Blötberget, Grängesberg and Kiirunavaara have been considered. The bulk geochemistry of the ores was analyzed using ICP-ES and ICP-MS. Polished sections of the ore samples were studied using ore microscopy, SEM-EDS and WDS microprobe technique. The results indicate that the ores consist mainly of magnetite and hematite, with minor silicates, flourapatite, pyrite, chalcopyrite, monazite-(Ce), allanite-(Ce), thorium silicate, titanite and zircon. Most REEs were originally hosted in flourapatite, but metamorphic and/or hydrothermal overprinting has resulted in complex textures and neomineralisation involving exotic REE-bearing minerals such as monazite-(Ce), allanite-(Ce) and secondary flourapatite. These features have also been observed in the related ore deposits nearby. The ores are enriched in REEs by factors between 1 and 9 compared to crustal values, with LREEs being the most enriched. These enrichments are rather low compared to other REE-ores currently being mined, but the easy access to the ores could mean that mining can be profitable with the current demand of these commodities.Varphögar av apatitjärnmalm av Kirunatyp ifrån järnmalmsbrytning i Bergslagen, Sydcentrala Sverige, innehåller förhöjda halter av sällsynta jordartsmetaller. Ett projekt vid Uppsala Universitet undersöker förekomster av sällsynta jordartsmetaller och andra kritiska element i varphögar bland annat från apatitjärnmalmer. I denna studie har prover från ett av Bergslagens apatitjärnmalmsfält, Idkerberget, undersökts geokemiskt och petrografiskt med fokus på faser som innehåller sällsynta jordartsmetaller. Deras utvinningspotential och deras relation till liknande förekomster såsom Blötberget, Grängesberg samt Kiirunavaara har också tagits i beaktning. Bulkgeokemin i proverna analyserades med ICP-EM och ICP-MS. Polerprov av malmerna undersöktes medelst optisk mikroskopi, SEM-EDS samt med WDS-mikrosondteknik. Resultaten visar att malmerna framförallt består av magnetit och hematit, med mindre mängder silikater, flourapatit, pyrit, kopparkis, monazit-(Ce), allanit-(Ce), thoriumsilikat, titanit och zirkon. Sällsynta jordartsmetaller är i huvudsak bundna i flourapatit, men metamorfa och/eller hydrotermala processer har resulterat i nybildningen av exotiska mineral såsom monazit-(Ce), allanit-(Ce), och sekundär flourapatit. Dessa egenskaper har även observerats i apatitjärnmalmer från andra platser. Proverna från Idkerberget har 1-9 gånger högre koncentration av sällsynta jordartsmetaller än jordskorpan generellt, och lätta sällsynta jordartsmetaller är de mest anrikade. Dessa halter är relativt låga jämfört med sällsynta jordartsmalmer som bryts i dagsläget, men eftersom materialet förekommer i enorma varphögar gör tillgängligheten att metallerna ändå kan utvinnas med vinst om efterfrågan på denna resurs består.
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Funk, Minéa. "Representing Bergslagen for tourism – a post-feminist approach : Androcentric representations of the industrial heritage in central Sweden." Thesis, Högskolan Dalarna, Turismvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28382.
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Marketing material used in promotion of industrial heritage sites for tourism creates representations of said cultural heritage. In order to increase the touristic value of the historical industrial sites marketers can create or make a place attractive through careful selection of images and texts. It is believed that simplifying the image can make it comprehensible and thus more attractive to potential visitors. However, simplifying images of heritage can result in creation of stereotypical representations. This research aimed to analyse what representations of the industrial heritage of Bergslagen, in the middle of Sweden, could be found in marketing material of tourism destinations today. Post-feminist theory was applied as a tool for analysis of the content as a contextual and critical perspective in order to interpret what meanings these representations found were conveying. By understanding the data in relation to androcentric discourse and the context of Bergslagen as a patriarchal system representations of continued polarization of gender was found. By conducting a content analysis of three destinations, Långban, Engelsbergs bruk and Axmar Bruk, four dominating themes of their representations in visual and textual promotional material were found. The narratives in the re-imagination and reproduction of the sites and their industrial heritage were also discovered during the analysis. The findings thus indicated that the marketing perpetuated stereotypes of the inherent gender roles that have existed in the past but were accentuated even through the modern mediums. As tourism is a tool for rejuvenation of industrial heritage sites it is important to note that, the need for increasing the attractiveness by consciously or unconsciously deciding which narratives should be told, marketers act as facilitators of generic ideas and impositions. When trying to simplify something as complex as a heritage, meaning can become lost in translation. The representations can become distorted, which they have in Bergslagen, according to the findings of this research. Representations can thus inform us of what is being marginalized. The understanding and interpretations of the representations can therefore become a resource in the marketing the real and genuine heritage.
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Lindeberg, Tomas. "Indium Analysis and Small-scale Distribution in Sulphides from the Lindbom Prospect, Långban Area, Western Bergslagen Ore Province." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-196479.
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Indium is extensively used in LCD screens and solar cells. It is mainly produced as a byproduct during ore processing. With ever increasing demand for indium and most of the production being restricted to a few countries new sources for indium are needed. In Sweden, the westernmost Bergslagen is the only area, which is known to exhibit minerals with essential indium. The indium mineralisations at Långban, the Linbom prospect, which are studied in this bachelor’s thesis show several trends. The most notable is the copper indium trend seen in sphalerite. A likely substitution based on similar ionic radii and charges is Cu1++ In3+ ↔ 2Zn2+.Usually when cassiterite is associated with similar polymetalic indium bearing mineralisations as at Långban there is also high concentrations in cassiterite. This has previously not observed in Sweden, however during this project concentrations were indeed found in cassiterite.
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Mård, Adam. "Fragmenteringspåverkan på artdiversitet och individantal hos 4 taxa av dagfjärilar, Rhopalocera, i Bergslagen, augusti 2017. : Translation not available." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-38881.
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Intensification of agriculture and forestry during the last century has led to loss of grasslands and meadows, both important habitats for butterflies. Several studies show that different biotopes in the swedish forest also can be suitable habitats for butterflies, and that is what I am focusing on in my study. This study was conducted in the area of Bergslagen, Sweden. The area is dominated by production forests, mainly consisting of pine and spruce, along with clear cuts, peatland, lakes and agricultural areas. The aim of the study was to investigate if and in which way species, species diversity and number of individuals of butterflies are affected by fragmentation in the surrounding landscape. I was focusing on habitat area and number of patches. Landscape composition in an area of 1500 m in radius around each of the 12 transects were studied. Nine species in total was found. Gonepteryx rhamni increased in number of individuals with increasing area of peatland and higher number of peatland patches, they also increased in individuals with higher number of water patches. Pieris napi decreased in individuals with increasing area of water. Plebejus idas and Plebejus argus decreased in number of individuals with higher number of forest patches, clear cut patches and patches of open land, they also decreased in individuals with increasing number of patches in total. Species diversity also decreased with increasing number of forest patches. Responses to fragmentation seem to be very species specific, some species responded positively to habitat area and number of patches while some responded negatively and some did not respond at all. My results show that some butterfly species in Bergslagen are affected by fragmentation and it is important to take on a landscape approach in conservation of butterflies.
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Mikko, Andreas. "Pokémon : Varför vi fortfarande vill fånga alla." Thesis, Uppsala universitet, Institutionen för speldesign, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-225581.
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Pokémon är en serie rollspel där spelaren fångar, tränar och strider med varelser som kallas Pokémon. Första versionerna av Pokémon-spelen utkom i Japan 1996 och har sedan dess blivit ett världsomspännande fenomen som innefattar bland annat TV-spel, samlarkort och en TV-serie. Genom åren har Pokémons popularitet hållit i sig. Varför är Pokémon fortfarande så populärt? Detta är vad denna studie ämnar besvara. Teorin är att orsaken är spelen i Pokémons huvudserie. Uppsatsen behandlar alla spel i huvudserien. En enkätundersökning har utförts via internet, en tioårig pojke vid namn Albin har intervjuats och Bergsala AB (distributör av Pokémon i Norden) har kontaktats. Resultatet från studien tyder på att många överger Pokémon-produkter när de blir äldre men håller fast vid spelen. Nostalgi pekas ut som en viktig anledning samt att spelen har olika aspekter som tilltalar en bred grupp människor. Intervjun med Albin indikerar att Pokémon-kort är närvarande på skolgårdar. Pojkens berättelser har stora likheter med incidenter från sent 90-tal och inbjuder till vidare studier av Pokémons närvaro i skolor.
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Bolin, Michaela. "Ställbergs gruva En fallstudie om när kultur möter regional utveckling." Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-68824.
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Den här uppsatsen handlar om mötet mellan regional utveckling och Ställbergs gruva, en postindustriell plats som idag fått en ny funktion i form av ett konstcenter. Gruvan ligger i Ställberg i Ljusnarsbergs kommun, en kommun som sedan 1970-talet har en kraftigt minskande befolkning. Idag ägs gruvområdet av konstgruppen The non existent Center vars verksamhet vid gruvan sedan 2017 till stor del finansieras genom att de är med i en modell för finansiering av regionala kulturaktörer och institutioner; kultur- samverkansmodellen. Syftet med uppsatsen är att förstå vad verksamheten i gruvan innebär och vilka idéer om regional utveckling som aktualiseras genom deras medverkan i samverkansmodellen. Detta sätts i perspektiv med hur den regionalpolitiska diskursen präglas av tanken om konkurrens och tillväxt. Uppsatsen är upplagd som en kvalitativ fallstudie där det huvudsakliga empiriska materialet består av intervjuer med representanter från fyra geografiska och samhälleliga nivåer; konstgruppen, lokalsamhället, kommunen och regionen. Regional utveckling i teori och praktik tillsammans med hur kultur ses som en utvecklingsfaktor för regional utveckling utgör studiens huvudsakliga teoretiska ramverk. Andra viktiga teorier är den om socialt kapital och teorin om släta och räfflade rum.Studien visar att gruppens arbete vid Ställbergs gruva har ett bredare fokus än att enbart fungera som en konstscen, gruppen kan även beskrivas som en social rörelse där de strävar efter att ifrågasätta och utmana normer och värderingar i samhället. I mötet med regional utveckling uppstår vissa svårigheter då regionen och konstgruppen har en del olika viljor och uppfattningar om vad det regionala arbetet för konstgruppen ska innebära. Konsten som en utmanande samhällskraft både uppmuntras och i praktiken begränsas från kulturpolitiskt håll. Konstgruppen vill även vara en plattform och mötesplats för lokalsamhällets invånare vilket främst aktualiserar idén om socialt kapital som viktig grogrund för utveckling och tillväxt, enligt idéer om regional utveckling. Svårigheter som kan möta gruppen i strävan efter att vara en lokal mötesplats är att några av de intervjuade ger uttryck för att många i samhället inte förstår vad verksamheten vid Ställbergs gruva innebär och inte heller har något intresse av att veta. Utifrån den konkurrensfokuserade regionala utvecklingsdiskursen kan konstateras att diskursen även är synlig i den mer välfärdsinriktade kulturpolitiken då medel ej satsas på Ställbergs gruva för att stärka en av regionens ”svagare” platser utan för vad verksamheten kan bidra med för regionen som helhet.
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Lundberg, Gustav. "Högerpopulismen i brukssamhället : En studie av den moderna politiska utvecklingen i Bergslagens kommuner." Thesis, Uppsala universitet, Statsvetenskapliga institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433214.
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Högerpopulismens framväxt står i centrum för otaliga statsvetenskapliga analyser där många möjliga orsakssamband bakom utvecklingen har föreslagits. I denna uppsats tar jag fasta på ett fåtal av dessa, och försöker även att föra fram nya förklaringsmodeller. Med utgångspunkt i teorin om att högerpopulismens framgång är en produkt av en värderingsstrid mellan generationskohorter utforskar jag – i en studie av den politiska utvecklingen i Bergslagens kommuner – hur samband med universella anspråk att förklara högerpopulismens utveckling stöter på patrull. Vidare undersöker jag huruvida detta har att göra med de lokala förutsättningar som utgör en plats politiska kultur. Genom att studera en rad samband vad gäller demografiska, ekonomiska och utbildningsmässiga faktorer och den högerpopulistiska utvecklingen i regionen kommer jag fram till att de i hög grad är otillräckliga för att förklara variationen mellan kommunerna. Istället undersöker jag huruvida platsernas lokala politiska kultur – som i detta fall utgörs av ”bruksandan” – har en inverkan på den politiska utvecklingen i kommunerna. Jag sammanför forskning om socialt kapital och forskning om platsers politiska kultur i syfte att öka förståelsen för varför vissa platser ter sig särskilt receptiva för den högerpopulistiska ideologin. Studien bygger på en hypotesgenererande metodik i syfte att kunna föreslå den lokala politiska kulturen som en möjlig orsak till högerpopulismens varierande grad av framgångar på olika platser. Analyserna leder till att två hypoteser om det sociala kapitalets påverkan på högerpopulismens utveckling kan formuleras. Sambandet testas tentativt i en regressionsanalys för Bergslagskommunerna och utvecklas sedan i en resonerande analys.
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Sundberg, Thom, and Lamare Philippe Viel. "Creating Shared Value: Ett nytt fenomen eller en naturlig utveckling av Corporate Social Responsibility? : En fallstudie av Länsförsäkringar Bergslagen." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12461.
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Ahmadi, Pouya. "Elastic Anisotropy of Deformation Zones in both Seismic and Ultrasonic Frequencies: An Example from the Bergslagen Region, Eastern Sweden." Thesis, Uppsala universitet, Geofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-201696.
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Estimation of elastic anisotropy, which is usually caused by rock fabrics and mineral orientation, has an important role in exploration seismology and better understanding of crustal seismic reflections. If not properly taken care of during processing steps, it may lead to wrong interpretation or distorted seismic image. In this thesis, a state-of-the-art under the development Laser Doppler Interferometer (LDI) device is used to measure phase velocities on the surface of rock samples from a major deformation zone (Österbybruk Deformation Zone) in the Bergslagen region of eastern Sweden. Then, a general inversion code is deployed to invert measured phase velocities to obtain full elastic stiffness tensors of two samples from the major deformation zone in the study area. At the end, results are used to correct for the anisotropy effects using three dimensionless Tsvankin's parameters and a non-hyperbolic moveout equation. The resulting stacked section shows partial reflection improvement of the deformation zone compared with the isotropic processing section. This suggests that rock anisotropy may also contribute to the generation of reflections from the deformation zones in the study area but requires further investigations.
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Brismo, Ploetz Marcus. "Mikroskopering av opaka faser - en studie från Skyttgruvan, Falun." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-203117.
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In nature there are about 4,500 minerals identified. These can roughly be divided into two groups, opaque phases and non-opaque phases, with the exception that some opaque phases also may act as a non-opaque phase in different circumstances. The division is made on the basis of the optical properties. Opaque phases are nontransparent, which means that a different type of microscope must be used. A conventional microscope uses transmitted light while the microscope for opaque phases or the ore microscope uses reflected light. The reason is that ore minerals often behave in an opaque manner. An ore mineral is actually a regular mineral but with the difference that it is economically advantageous to mine. Many sulphide and oxide minerals are classified as ore minerals. Sulfide and oxide ores are often associated with a particular type of formation environment and are found in a few areas in Sweden. Bergslagen, Skelleftefältet and Norrbotten belong to these areas. The purpose of this studie is to identify the mineralization from Skyttgruvan and Näverbergsgruvan in Falun by using a microscope.I naturen finns cirka 4,500 mineral identifierade. Dessa kan grovt sett delas upp i två grupper nämligen opaka faser och icke-opaka faser, då bortses dock från undantaget att vissa opaka faser också kan beteé sig som icke-opaka faser under olika omständigheter. Uppdelningen är gjord utifrån mineralens optiska egenskaper. Opaka faser är icke genomskinliga vilket innebär att en annan typ av mikroskop än de konventionella måste användas. Ett konventionellt mikroskop använder sig av genomfallande ljus samtidigt som mikroskop för opaka faser använder sig av påfallande ljus, ett så kallat malmmikroskop. Anledningen till att de kallas just så är för att malmineral ofta är opaka. Ett malmmineral är egentligen ett vanligt mineral men som är ekonomiskt fördelaktigt att bryta. Idag är många sulfid- och oxidmineral klassade som malmmineral. Sulfid och oxidmineral är ofta associerade med en viss typ av bildningsmiljö. Denna typ av bildningsmiljö går att finna spår av på några platser i Sverige. Bergslagen, Skelleftefältet och Norrbotten hör till dessa områden. Syftet med denna studie är att identifiera de opaka faserna som påträffats i stuffer som samlats in från Skyttgruvan och Näverbergsgruvan.
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Ivarsson, Filip. "Characterization of Fe-rich skarns and fluorapatite-bearing magnetite occurrences at the Zinkgruvan Zn-Pb-Ag and Cu deposit, Bergslagen, Sweden." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-72704.
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Zinkgruvan is a stratiform Zn-Pb-Ag and Cu sulphide deposit hosted by Paleoproterozoic strata in southern Bergslagen, Sweden. The deposit underwent medium-high grade regional metamorphism during the Svecokarelian orogeny, including partial melting of the host succession. Subordinate zones of semi-massive to massive magnetite and Fe-rich skarns occur in marble stratigraphically below the stratiform Zn-Pb-Ag ore but have so far not been described in detail in the scientific literature. This thesis presents results from detailed geological drill core logging, light optical microscopy (LOM) and scanning electron microscopy (SEM), which have been integrated with results from electron microprobe analysis (FE-EMPA) and whole-rock lithogeochemical analysis to provide a comprehensive description of the magnetite mineralization. Samples from the formerly mined magnetite deposits Västerby, Garpa and Åmme - distal to Zinkgruvan - have also been studied to allow for a comparison. The combined dataset has been used to 1) discuss the genesis of the magnetite mineralizations, including their relationship to base metal sulphide mineralization, and 2) evaluate potential vectors to Zn-Pb-Ag and Cu mineralization based on variations in the magnetite deposits. The semi-massive to massive magnetite, adjacent and associated Fe-rich skarn at Zinkgruvan are located in the stratigraphic upper part of the marble host. Three different varieties of magnetite mineralization can be defined: 1) semi-massive to massive magnetite mineralization in marble, 2) magnetite-bearing veins and 3) retrograde magnetite after olivine. Detailed optical microscopy has revealed a positive spatial correlation between aluminium spinel, apatite, magnetite and graphite. Semi-massive to massive magnetite mineralization at Zinkgruvan is enriched in P2O5, ΣREELa-Lu and Mn relative to a carbonate precursor. A positive correlation exists between P2O5 and ∑REELa-Lu, suggesting apatite and monazite are the primary REE-bearing minerals. The fact that the samples with highest P2O5 and ∑REELa-Lu are all Fe-rich rocks suggest the enrichment of the latter is related to the event which formed the Fe mineralization. Magnetite mineralization from the historic iron mines NW of Zinkgruvan share several key attributes with magnetite mineralization at Zinkgruvan. These include: 1) magnetite is the only iron oxide, 2) lithological and mineralogical similarities, including spatial association with marble, 3) equally high whole-rock Fe content, 4) equally high Mn (1-4 wt.% MnO), 5) equally high Eu anomalies (Eu/Eu* = 1.1- 2.8, avg. 1.75), and 6) local presence of sphalerite mineralization. Bending of the tectonic foliation from c. E-W to NW in the western part of Zinkgruvan suggest these magnetite mineralizations may be located along the same trend as those at Zinkgruvan. The normal calc-silicate mineralogy in Zinkgruvan marble (e.g. diopside, forsterite, phlogopite) can be explained by prograde regional metamorphic reactions between silicates and dolomite or calcite in impure carbonate rocks with a variable content of detrital siliciclastic and volcaniclastic material. However, the stratabound magnetite mineralization and associated Fe-rich skarns cannot be fully accounted for by this model. It is plausible that the Fe-rich skarns can be explained by similar reactions but involving more Fe-rich carbonates (ferrodolomite, ankerite, siderite). In the absence of quartz, siderite is known to thermally decompose into magnetite and graphite at temperatures above 465° C, whereby siderite-rich rocks may have been precursor to the semi-massive to massive magnetite mineralization. A recent genetic model suggests that the ore-forming fluids which formed Zinkgruvan where similar to those which formed McArthur-type SEDEX deposits. The presented results are consistent with this model, since e.g. siderite is a common alteration mineral in alteration envelopes to such deposits. Hence, magnetite mineralization, Zn-Pb-Ag and Cu-ore may all be related to the same pre-metamorphic hydrothermal system. The current genetic model places the magnetite mineralization at Zinkgruvan proximal to a fossil hydrothermal vent zone (the Burkland discontinuity). It is plausible that the magnetite mineralization mined at surface lay along the northern continuation of the Burkland discontinuity. Based on the assumption that the Burkland Cu-mineralization is most proximal and the old iron mines at Åmme are most distal along this structure, variations in whole-rock lithogeochemistry, mineral chemistry and mineralogy have been used to define nine vectors to economic Zn-Pb-Ag and Cu ore as is mined at Zinkgruvan.
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Bergsma, Florian [Verfasser], Jörg [Gutachter] Schwenk, and Colin [Gutachter] Boyd. "Modeling and analyzing cryptographic real-world protocols / Florian Bergsma ; Gutachter: Jörg Schwenk, Colin Boyd ; Fakultät für Elektrotechnik und Informationstechnik." Bochum : Ruhr-Universität Bochum, 2015. http://d-nb.info/1201554365/34.
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