To see the other types of publications on this topic, follow the link: Silver mines and mining – Zimbabwe.
Journal articles on the topic 'Silver mines and mining – Zimbabwe'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 37 journal articles for your research on the topic 'Silver mines and mining – Zimbabwe.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Ruberti, Marcello, and Stefania Massari. "Are the World-Leading Primary Silver Mines Exhausting?" Sustainability 10, no. 8 (July 26, 2018): 2619. http://dx.doi.org/10.3390/su10082619.
Full textAbstract:
Silver is one of the rarest metals in nature and certainly among the most used ones, not only as precious good for financial investments but also for many industrial critical applications. Because it would be very difficult to analyze the situation regarding the future global availability of silver as a commodity in general, due to the necessity of a large amount of data which are hardly available, we have focused only on the mining production of primary silver. In particular, the study regards the activities of a sample consisting of twelve of the world top fifteen leading primary silver mines, which represent the 54% of the worldwide primary silver production and 16% of the global silver mining production. We have investigated the related exploitation state and trends of these twelve sites by elaborating their last ten-years statistics on silver production, ore grades, resources and reserves. The findings of this study, in short, are that the cumulative average silver ore grades, both in extracted mineral, resources and reserves, of the above selected mines, have decreased and also that the new mining fields (Dukat, San Bartolomé, Pirquitas, Saucito) have lower silver content indexes than the older ones.
2
Morony, Michael. "The Early Islamic Mining Boom." Journal of the Economic and Social History of the Orient 62, no. 1 (December 6, 2019): 166–221. http://dx.doi.org/10.1163/15685209-12341477.
Full textAbstract:
AbstractThe present article shows that, according to archaeological and literary evidence, an expansion in mining occurred in the early Islamic world as a result of changes in mining technology at the end of Late Antiquity. The production of gold, silver, copper, iron, and other minerals is shown to have peaked in the eighth and ninth centuries and then to have declined during the tenth and eleventh centuries due to insecurity and/or exhaustion of the mines. Mining development was financed privately, and mines were usually private property.
3
Kim, Yangkyun, and Sean S. Lee. "Application of Artificial Neural Networks in Assessing Mining Subsidence Risk." Applied Sciences 10, no. 4 (February 14, 2020): 1302. http://dx.doi.org/10.3390/app10041302.
Full textAbstract:
Subsidence at abandoned mines sometimes causes destruction of local areas and casualties. This paper proposes a mine subsidence risk index and establishes a subsidence risk grade based on two separate analyses of A and B to predict the occurrence of subsidence at an abandoned mine. For the analyses, 227 locations were ultimately selected at 15 abandoned coal mines and 22 abandoned mines of other types (i.e., gold, silver, and metal mines). Analysis A predicts whether subsidence is likely using an artificial neural network. Analysis B assesses a mine subsidence risk index that indicates the extent of risk of subsidence. Results of both analyses are utilized to assign a subsidence risk grade to each ground location investigated. To check the model’s reliability, a new dataset of 22 locations was selected from five other abandoned mines; the subsidence risk grade results were compared with those of the actual ground conditions. The resulting correct prediction percentage for 13 subsidence locations of the abandoned mines was 83–86%. To improve reliability of the subsidence risk, much more subsidence data with greater variations in ground conditions is required, and various types of analyses by numerical and empirical approaches, etc. need to be combined.
4
Kim, Nanny, and Yuda Yang. "The Jinniu mines and the confusions of Qing sources on silver mining." Artefact, no. 8 (December 6, 2018): 111–39. http://dx.doi.org/10.4000/artefact.2028.
Full text
5
Kim, Nanny. "Silver Mines and Mobile Miners in the Southwestern Borderlands of the Qing Empire." Journal of the Economic and Social History of the Orient 63, no. 1-2 (December 26, 2019): 117–56. http://dx.doi.org/10.1163/15685209-12341506.
Full textAbstract:
AbstractThis article explores mining as the motor of temporary and permanent migration into the Far Southwest of Ming and Qing China. It focuses on the workforce of borderland silver mines, specifically on travel routes and the geography of recruitment. Durations and costs of the journeys reflect the existence of efficiently organized networks. The men who set out for the mines did so in the expectation of making money and returning home with handsome gains. This provides insights into the sizeable and profitable non-agrarian sector in the late imperial economy.
6
Vent, Glenn. "ACCOUNTING FOR GOLD AND SILVER MINES: THE DEVELOPMENT OF COST ACCOUNTING." Accounting Historians Journal 13, no. 2 (September 1, 1986): 77–88. http://dx.doi.org/10.2308/0148-4184.13.2.77.
Full textAbstract:
This study found evidence which supports the thesis that cost accounting techniques evolved rapidly during the last quarter of the nineteenth century. The cost accounting system employed by the leading mines of the Comstock Lode during the 1870's is compared to a system used in the Cripple Creek district of Colorado during the first decade of the twentieth century. The cost accounting techniques of the mining industry appear to have developed rapidly during this period from crude to sophisticated systems.
7
Kim, Nanny, and Yang Yuda. "Mining off the Map: Fulongchang and Silver Mines in the Qing Empire’s Far Southwest." Journal of the Economic and Social History of the Orient 64, no. 3 (May 18, 2021): 251–301. http://dx.doi.org/10.1163/15685209-12341537.
Full textAbstract:
Abstract A donation stele discovered in the 1980 records that the community of the Fulong silver mines raised some 4500 liang of silver to build a temple dedicated to the God of Wealth in 1814. The site in a remote mountain range in northern Yunnan evidently was a prosperous and populous mining town. Yet it appears in no government record. Centered on the case study, this paper provides insights into social self-organization of communities and the structures within the Qing government that allowed the operation of mines that were registered with the local governments and submitted taxes yet kept out of the communications with the central government. The analysis contributes a specific example of communal governance structures and explains the two layers in late imperial administration, one which was official and documented in gazetteers and central records, and another which was customary and usually undocumented.
8
Brocchini, Debora, Luca Deravignone, and Gianni Dellavalle. "Unveil the traces of ancient mining." Acta Geoturistica 8, no. 1 (July 1, 2017): 11–19. http://dx.doi.org/10.1515/agta-2017-0002.
Full textAbstract:
Abstract The Archaeological Mines Park of San Silvestro is part of the Campiglia mining area. It represents its most important historical core. The Park covers a surface of around 450 hectares on the mountains Calvi, Rombolo, Poggio all’Aione and along the valleys Temperino, Lanzi and Manienti. The main characteristic of the Park is the richness of mining activity traces towards copper, lead and silver. The mining activity started during the 7th century BC with the Etruscan civilization and continued until 1979, when the last mine was closed. Many karst cavities of the Campiglia are “cave-mines’: they are the result of a natural event and the action of ancient miners, who searched metalliferous minerals. In Campiglia there are traces of hundreds of Etruscan, medieval and modern mining operations, tunnels from the 19th and 20th centuries. The aim of the Archaeological and Mining park of San Silvestro is to highlight historical landscape, the result of centuries of mining activities. Some of the buildings, originally used for productive and administrative purposes, have been restored to house exhibitions and services for visitors. The impressive ruins of the medieval village of San Silvestro and two of the modern mining tunnels, have been equipped for guided tours. The accessibility of ancient mining works is however still difficult and this represents a limit in the enhancement and protection of these sites. Speleologists, archaeologists and geologists will be involved in making a project to let everyone discover the most ancient underground mines. We have three main targets: (1) produce high quality pictures of the most interesting and impressive mining traces; (2) create 3D models useful for scientific and cultural purposes; (3) equip some of the ancient shafts with light structures to allow small groups to visit them. We will describe the morphological characteristics of one of these ancient mines, giving some advice for the production of high quality picture in this contest. We will also describe the technique used for the production of a 3D model and how to equip the mine for the visit of small groups of people.
9
Moyo, Funa, and Clifford Mabhena. "Harnessing Mineral Resources in Gwanda District of Zimbabwe: A Myth or a Reality?" International Letters of Social and Humanistic Sciences 38 (August 2014): 1–21. http://dx.doi.org/10.18052/www.scipress.com/ilshs.38.1.
Full textAbstract:
The article examines strategies of harnessing mineral resources for community empowerment, poverty reduction and infrastructure development in mining areas of Zimbabwe. Despite abundant mineral resources, the majority of Zimbabwean indigenous communities living close to the mines have limited access to directly or indirectly benefit from the mineral resources. Using a descriptive survey to collect data, this research article gives a strong proposition on how the Indigenisation and Economic Empowerment Act can be used as a vehicle of harnessing mineral resources. The article argues that pro poor mining policies that ensure the harnessing of mineral resources for community empowerment, poverty reduction and infrastructure development are paramount. The article further argues that the Indigenous and Economic Empowerment Act needs to be harmonised with other sector legislation in the country. The article concludes that the development of infrastructure and provision of public utilities such as electricity, water, establishing micro-credit to small and medium enterprises and implementing broad-based indigenisation policies are some of the strategies of improving rural livelihoods. Similarly direct and indirect linkages between the mining sector and local economy could be enhanced through the provision of food supply to the mine, manufacture of mining inputs, provision of security services and supply of labour by the local community. The article recommends that the harmonisation of legislation that has an effect on harnessing of mineral resources by local communities will ensure community empowerment, poverty reduction and infrastructure development.
10
Romano, Rossana Barragán. "Women in the Silver Mines of Potosí: Rethinking the History of “Informality” and “Precarity” (Sixteenth to Eighteenth Centuries)." International Review of Social History 65, no. 2 (October 24, 2019): 289–314. http://dx.doi.org/10.1017/s0020859019000555.
Full textAbstract:
AbstractUnderground mining in Potosí was a male sphere. Nevertheless, women were actively involved in the early stages of silver mining in Potosí, when traditional technologies were still in use. They also played an important role in the local ore market. After the introduction of new technology and the reorganization of the labour force, the process of refining ore was much more complicated. Women then participated in some stages of the process: in selecting the ores and sieving. This implies that mining is a complex process with a labour and gender division that has been underrated and underestimated. More importantly, women became owners of rudimentary mills (trapiches) where the ore was processed, selling different amounts of silver to the Spanish authorities, making their living in this way.
11
Wittwer, Paul D. "Epithermal Precious Metal Deposits in South Korea—History and Pursuit." SEG Discovery, no. 125 (April 1, 2021): 19–26. http://dx.doi.org/10.5382/segnews.2021-125.fea-01.
Full textAbstract:
Abstract The gold and silver endowment of Korea has historically been well known, with records alluding to production as far back as 1122 BC. The main gold production period was from 1925 to 1943 during the Japanese occupation of Korea, with more than 1 Moz recorded in 1939. Muguk was the most productive gold mining operation, located within the central region of South Korea, with a recorded 590 koz of gold produced from 1934 to 1998 (first mined in AD 912). The majority of the historical mining operations were closed by government order in 1943 during the Second World War and never reopened. A number of small mines operated between 1971 and 1998, with limited production during a period of gold prices generally lower than at present (~25–50% of current inflation adjusted prices, apart from a four-year period 1979–83). It is likely that significant resources remain within these historical mining areas. Gold-silver deposit types historically recognized and exploited in Korea include placers and orogenic and intrusion-related vein systems. Only more recently have epithermal vein and breccia systems been recognized. This is not surprising, given that the geologic and tectonic setting of the Southern Korean peninsula is prospective for epithermal precious metal deposits, spatially associated with basin-scale brittle fault systems in Cretaceous volcanic terranes. South Korea is an underexplored jurisdiction, with limited modern exploration and drilling until the mid-1990s, when Ivanhoe Mines Ltd. discovered the Gasado, Eunsan, and Moisan epithermal gold-silver deposits, all of which became mines. Exploration was limited for another 20 years until Southern Gold Ltd., an Australian Securities Exchange (ASX)-listed company, commenced regional-scale exploration for epithermal deposits, using a strategy similar to that successfully employed by Ivanhoe.
12
Szychowska-Krąpiec, Elżbieta. "Dendrochronological Studies of Wood from Mediaeval Mines of Polymetallic Ores in Lower Silesia (Sw Poland)." Geochronometria 26, no. -1 (January 1, 2007): 61–68. http://dx.doi.org/10.2478/v10003-007-0004-3.
Full textAbstract:
Dendrochronological Studies of Wood from Mediaeval Mines of Polymetallic Ores in Lower Silesia (Sw Poland)The paper presents results of dendrochronological dating of wood encountered in abandoned mines in the eastern part of Lower Silesia. The research was carried out in gold mines in Złoty Stok, Głuchołazy, and Zlate Hory, a polymetallic-ore mine in Marcinków as well as old mines in the Sowie Mts: the Silberloch adit, an adit on the hillside of Mała Sowa, a graphite mine, and the silver and lead mine Augusta. Altogether 69 samples were taken from timbers of coniferous tree species:Pinus sylvestris, Abies alba, Picea abiesandLarix decidua.The oldest wood, from the turn of the fifteenth and sixteenth centuries was encountered in the gold mines in Zlate Hory and Głuchołazy. In the gold mine in Złoty Stok, graphite mine in Sowie Mts and in Marcinków there was identified wood from the seventeenth and eighteenth centuries. Generally, timbers from the nineteenth century were prevailing, and in three cases there was even encountered relatively young twentieth-century wood in the gold mine in Złoty Stok and in the Silberloch adit. The analyses carried out were only preliminary. Broader, interdisciplinary investigations, including dendrochronology, archaeology, geology, mining, and palaeobotany, would substantially contribute for learning the history of the mining in the whole region.
13
Voudouris, Panagiotis, Vasilios Melfos, Constantinos Mavrogonatos, Adonis Photiades, Eugenia Moraiti, Branko Rieck, Uwe Kolitsch, et al. "The Lavrion Mines: A Unique Site of Geological and Mineralogical Heritage." Minerals 11, no. 1 (January 14, 2021): 76. http://dx.doi.org/10.3390/min11010076.
Full textAbstract:
The Lavrion area corresponds to the western part of the Attic-Cycladic metamorphic belt, in the back-arc region of the active Hellenic subduction zone. Between the Eocene and the Miocene, metamorphic rocks (mainly marbles and schists) underwent several stages of metamorphism and deformation due to collision and collapse of the Cycladic belt. Exhumation during the Miocene was accommodated by the movement of a large-scale detachment fault system, which also enhanced emplacement of magmatic rocks, leading to the formation of the famous Lavrion silver deposits. The area around the mines shows the stacking of nappes, with ore deposition mainly localized within the marbles, at marble-schist contacts, below, within, or above the detachment. The Lavrion deposit comprises five genetically-related but different styles of mineralization, a feature never observed in another ore deposit elsewhere, containing the highest number of different elements of any known mining district. The local geology, tectonic, and magmatic activity were fundamental factors in determining how and when the mineralization formed. Other key factors, such as the rise and the fall of sea level, which resulted from climate change over the last million years, were also of major importance for the subsequent surface oxidation at Lavrion that created an unmatched diversity of secondary minerals. As a result, the Lavrion deposit contains 638 minerals of which Lavrion is type-locality for 23 of them, which is nearly 12% of all known species. Apart from being famous for its silver exploitation, this mining district contains more minerals than any other district on Earth. The unique geological, mineralogical, and educational (mining, archaeological, and environmental) features suggest that it is highly suitable to be developed as a future UNESCO Global Geopark.
14
Roy, Prodipto. "Degradation due to mining: The Piparwar Case Study and problems of estimating costs of degradation." Social Change 31, no. 1-2 (March 2001): 144–55. http://dx.doi.org/10.1177/004908570103100211.
Full textAbstract:
Mining has two broad side-effects which may be considered degrading to the environment. The first is the environmental effects of the change on the land-use from forest or cropland to degraded wasteland due to the improper dumping of overburden; and the second, which is partially linked to the first, is the displacement of whole villages comprised of families who have husbanded their crops and animals, and lived symbiotically with the forest for centuries if not millenia. This paper is concerned mainly with the first and only partially with the second as this is the subject of a separate paper. This paper outlines methods of estimation of the quantum of degradation caused by mining taking a long-term perspective of the last 50 (to 100) years and the next 50 years. The types of mines listed include a very wide variety including coal mines, bauxite mines, iron-ore mines, manganese, zinc, chromite, asbestos, granite, sandstone, copper, silver, gold and one uranium mine. Oil drilling maybe considered another form of mining or extracting fossil fuels. All these forms of extracting metals, non-metals, rocks, carbons, and hydro-carbons are included under the broad purview of'mining’. Secondary data will need to be obtained from various governmental departments on the numbers of mines which have been opened both before Independence and after in order to establish parameters. In addition data on families displaced, land acquired, land-use before and after will also be obtained. After making meaningful categories primary data on a parsimonious sample of each category and each type of mining (extraction) will be carried out to use as estimators of the parameters. The case study of the Piparar coal mine illustrates the difficulties and the inaccuracies that may be encountered when using average estimators. Notwithstanding these difficulties, on account of the fact that mining has been the cause for a great deal of the environmental degradation in India, it is important that fresh estimates should be made.
15
Chaudhuri, K. N. "Precious metals and mining in the New World: 1500–1800." European Review 2, no. 4 (October 1994): 261–70. http://dx.doi.org/10.1017/s1062798700001186.
Full textAbstract:
The discovery of large quantities of gold and silver in the New World following the voyage of Christopher Columbus had a major impact on the subsequent history of the world economy. These two precious metals together with copper were regarded as the standard and measure of value in all societies throughout history. The sudden increase in the supply of gold and silver greatly increased the capacity of individual countries such as Spain and Portugal to finance wars and imports of consumer goods. The new Spanish coin, the real of eight, became an international currency for settling trade balances, and large quantities of these coins were exported to the Middle East, India, Southeast Asia, and China to purchase oriental commodities such as silk piece goods, cotton textiles, industrial raw material such as indigo, and various kinds of spices, later followed by tea, coffee, and porcelain. The trade in New World gold and silver depended on the development of new and adequate mining techniques in Mexico and Peru to extract the ore and refine the metal. South German mining engineers greatly contributed to the transplantation of European technology to the Americas, and the Spanish-American silver mines utilised the new mercury amalgamation method to extract refined silver from the raw ores. Although the techniques used in Mexico and Peru were not particularly advanced by contemporary European standards, the American mine owners remained in business for more than three hundred years, and the supply of American silver came to be the foundation of the newly rising Indian Ocean world economy in the 17th and 18th centuries.
16
Murillo, Dana Velasco. "Laboring Above Ground: Indigenous Women in New Spain’s Silver Mining District, Zacatecas, Mexico, 1620–1770." Hispanic American Historical Review 93, no. 1 (February 1, 2013): 3–32. http://dx.doi.org/10.1215/00182168-1902778.
Full textAbstract:
Abstract This article considers the roles and experiences of indigenous women in the silver mining town of Zacatecas, Mexico, from the early seventeenth century through the late colonial period (1620–1770). Indigenous women of all ages and civil statuses migrated and settled in Zacatecas through the colonial period. Using Spanish sources, this article highlights the importance of their contributions to the production of silver and to the settlement of the city and its four Indian towns. It argues for a broader understanding of the labor involved in silver production to include activities performed outside the mines by women. Some of this work involved the preparation and distribution of goods and foodstuffs and basic housekeeping at mining haciendas, and women’s engagement with small-scale trade, market activities, and the management of properties in the city. Indian women also contributed to the vitality of the city and its Indian communities, migrating and settling in Zacatecas in large numbers even during periods of mining declines. Within these communities, episodes of high male absenteeism often left Indian women in charge of their households. As primary caretakers, they cared for their children and often used legal measures to protect them from abusive labor practices common to mining towns. Ultimately, this article argues that indigenous women’s roles above ground were as important as those performed by their male, silver-extracting counterparts below ground.
17
Dimitrova, D., Z. Cholakova, N. Velitchkova, Ts Kotsev, V. Mladenova, T. Kerestedjian, and D. Antonov. "Heavy metal and metalloid concentration dynamics in mine and surface waters in the vicinity of Chiprovtsi and Martinovo mines, Northwestern Bulgaria." Bulletin of the Geological Society of Greece 40, no. 3 (June 5, 2018): 1397. http://dx.doi.org/10.12681/bgsg.16973.
Full textAbstract:
Chiprovtsi silver-lead and Martinovo iron mines represent the biggest mining area in Northwestern Bulgaria, which was operated till 1999. Their long-lived operation leads to proved pollution of the environment in the vicinity of the mines, especially water and soil. Seasonal monitoring of heavy metal (Cu, Zn, Cd and Pb) and metalloid (As and Sb) concentrations in mine, surface (river) and drinking waters was carried out during May and August 2006 to determine the level of contamination of the Chiprovska Ogosta river basin resulting from the long-lived mining activity and whether these abandoned mines continue to be potential source for water pollution. This study proves significant As concentrations in mine (up to 170 μg/l) and surface waters (between 50 and 621 μg/l). The presence of other heavy metals, such as Cu, Cd, Zn and Pb, and metalloid — Sb is also recorded. Among them, Pb was found in considerable concentrations - up to 1456 pg/l during May 2006 sampling exhibiting great concentration variability between dry and wet sampling seasons. Sb is also determined in mine waters (up to 25 pg/l), but not exists in surface and drinking waters. Drinking waters are proved to be free of heavy metals and metalloids.
18
Arboledas-Martínez, Luis, and Eva Alarcón-García. "Redefining the role of metal production during the Bronze Age of south-eastern Iberia. The mines of eastern Sierra Morena." Documenta Praehistorica 45 (January 3, 2019): 138–53. http://dx.doi.org/10.4312/dp.45-11.
Full textAbstract:
Researchers have traditionally paid little attention to mining by Bronze Age communities in the south-east of the Iberian Peninsula. This has changed recently due to the identification of new mineral exploitations from this period during the archaeo-mining surveys carried out in the Rumblar and Jándula valleys in the Sierra Morena Mountains between 2009-2014, as well as the excavation of the José Martín Palacios mine (Baños de la Encina, Jaén). The analysis of the archaeological evidence and the archaeometric results reveal the importance of mining and metallurgical activities undertaken by the communities that inhabited the region between 2200 and 900 cal. BC, when it became one of the most important copper and silver production centers during the Late Prehistory of south-eastern Iberia.
19
Arboledas-Martínez, Luis, and Eva Alarcón-García. "Redefining the role of metal production during the Bronze Age of south-eastern Iberia. The mines of eastern Sierra Morena." Documenta Praehistorica 45 (December 29, 2018): 138–53. http://dx.doi.org/10.4312/dp.45.11.
Full textAbstract:
Researchers have traditionally paid little attention to mining by Bronze Age communities in the south-east of the Iberian Peninsula. This has changed recently due to the identification of new mineral exploitations from this period during the archaeo-mining surveys carried out in the Rumblar and Jándula valleys in the Sierra Morena Mountains between 2009-2014, as well as the excavation of the José Martín Palacios mine (Baños de la Encina, Jaén). The analysis of the archaeological evidence and the archaeometric results reveal the importance of mining and metallurgical activities undertaken by the communities that inhabited the region between 2200 and 900 cal. BC, when it became one of the most important copper and silver production centers during the Late Prehistory of south-eastern Iberia.
20
Jiayin, Huang, Hu Baoan, Tan Xiangjun, Cheng Jin, and Li Long. "Concept and Practice of Open-pit Mining Area Restoration and Reuse --- Taking an Open-pit Coal Mining Area in Datong, Shanxi as an Example." E3S Web of Conferences 145 (2020): 02014. http://dx.doi.org/10.1051/e3sconf/202014502014.
Full textAbstract:
The restoration of open-pit mining coal mine areas is imminent, and it is of great significance to put forward a set of reasonable restoration concepts. According to the geographical location and economic conditions of the mining areas, this paper combines multiple restoration concepts and measures such as “fundamental reforestation”, “near-natural restoration”, “introduction of agricultural and forestry industries” and “development of cultural tourism in abandoned land” in a scientific way, the combination has been successfully applied in the restoration and comprehensive utilization project in an open-pit coal mine area in Datong, Shanxi, China. This concept realizes the reuse of abandoned open-pit coal mines and closely follows the national strategy of poverty alleviation and rural revitalization, in pursuit of the national vision of “clear waters and green mountains are mountains of gold and silver.”
21
Premo, Bianca. "From the Pockets of Women: The Gendering of the Mita, Migration and Tribute in Colonial Chucuito, Peru." Americas 57, no. 1 (July 2000): 63–93. http://dx.doi.org/10.1017/s0003161500030212.
Full textAbstract:
So many Indian men had moved, fled or died because of the labor draft to the silver mines of Potosí that only women were left to govern in some Andean communities. Or so the rumor went. In 1682, the cabildo of the imperial mining capital informed the king that such reports were greatly exaggerated. “This could not be true, even in the case where not one male Indian was left in the entire Kingdom,” its statement reads. “Although the pueblos have been depopulated, there are still more than enough [men] to fill offices in conformity with cabildo ordinances.”
22
Brown, Kendall W. "Workers' Health and Colonial Mercury Mining at Huancavelica, Peru." Americas 57, no. 4 (April 2001): 467–96. http://dx.doi.org/10.1353/tam.2001.0030.
Full textAbstract:
Mining had far-reaching ecological consequences throughout much of colonial Spanish America. It deformed the landscape, introduced pollutants such as sulfur, mercury and salt into the biosphere, and caused human settlement of sparsely populated or uninhabited regions. Forests succumbed to the charcoal makers' axes. Workers' lungs filled with silicosis-causing dust. Cave-ins snuffed out lives or crippled those they spared.As unhealthy as mining was elsewhere in Spanish America, it was reported to have been especially harmful in the central Andes at Huancavelica. Workers there suffered the common diseases and injuries associated with the industry such as respiratory disease and broken limbs. They also had to overcome the challenges of arduous labor at high altitude. Most pernicious of all was the toxic nature of the mercury they were mining. Colonial critics asserted that Huancavelica was an environmental tragedy that placed workers in exceptionally dangerous conditions in order to produce the mercury needed by silver refiners to amalgamate and refine their ores. The critics claimed that the mercury mines' human cost was immoral, yet their cries of despair and outrage could not overcome quicksilver's crucial importance to the imperial economy. Killing and maiming, Huancavelica earned for itself an infamous reputation as the mina de la muerte (the mine of death).
23
Felten, Sebastian. "The history of science and the history of bureaucratic knowledge: Saxon mining, circa 1770." History of Science 56, no. 4 (September 3, 2018): 403–31. http://dx.doi.org/10.1177/0073275318792451.
Full textAbstract:
This article looks into mining in central Germany in the late eighteenth century as one area of highly charged exchange between (specific manifestations of early modern) science and the (early modern) state. It describes bureaucratic knowledge as socially distributed cognition by following the steps of a high-ranking official that led him to discover a rich silver ore deposit. Although this involved hybridization of practical/artisanal and theoretical/scientific knowledge, and knowers, the focus of this article is on purification or boundary work that took place when actors in and around the mines consciously contributed to different circuits of knowledge production. For the sake of analysis, the article suggests a way of opposing bureaucratic versus scientific knowledge production, even when the sites, actors involved in, and practices of that knowledge production were the same or similar. Whereas the science of the time invoked consensus among equals to conflate competing knowledge claims, bureaucracies did so by applying a hierarchy among ranked individuals.
24
Mugodzwa, Davidson Mabweazara. "Black Economic Empowerment, Employment Creation and Resilience: The Economic and Social Contribution of Lennox Mine to the Development of Zimbabwe, 1970-2016." IRA-International Journal of Management & Social Sciences (ISSN 2455-2267) 6, no. 3 (March 27, 2017): 391. http://dx.doi.org/10.21013/jmss.v6.n3.p6.
Full textAbstract:
<div><p><em>This research sets out to unravel the history of Lennox Mine from its inception in 1970 tracing the contribution of the mine to the economic development of Zimbabwe from its colonial beginnings up to the current period when the new visionary owner, Honourable Gandiwa Moyo, Deputy Minister of Mines who inherited a dysfunctional mining enterprise set it on course again as a pillar for economic production, under the erstwhile management of the Lennox General Mine Manager, Edgar Mashindi. The research seeks to explore how the mine management, operating under harsh economic conditions prevailing in Zimbabwe has empowered African entrepreneurs and employees and resuscitated life to the dying town of Mashava. Mashava is back on its former footing as a lively booming bedroom town of Masvingo City, forty kilometres away: supermarkets, bars, salons, housing projects, new shops are sprouting up once again as Mashava claims its proud place as a gold producing enclave of the Zimbabwean economy. Hundreds of unemployed youths from all over Zimbabwe have descended on Mashava, seeking employment and investment opportunities resulting in an unprecedented economic boom which is being felt country wide. Only recently hordes of flea female market traders opened shop at Mashava to sell clothes, shoes, household furniture and related paraphernalia to local residents and they reported that business was excellent and confirmed business plans to return every month end to sell their wares. A few years back Mashava was an abandoned mining town with all services shut down after the Capitalist oligarchic organization which owned Mashava ceased all operations and expropriated capital to Australia and Europe and started out new commercial ventures in those respective European countries. The Zimbabwean Electricity Supply Association [ZESA] shut down electricity supplies to Lennox Mine after the mine incurred a debt of close to a quarter of a million. Today, Lennox has agreed on a payment plan and electricity has been reopened triggering high gold productivity as the mine returns to its normal production levels.</em></p></div>
25
Proenza, Joaquín A., Lisard Torró, and Carl E. Nelson. "Mineral deposits of Latin America and the Caribbean. Preface." Boletín de la Sociedad Geológica Mexicana 72, no. 3 (November 28, 2020): A250820. http://dx.doi.org/10.18268/bsgm2020v72n3a250820.
Full textAbstract:
The region that encompasses Latin America and the Caribbean is a preferential destination for mining and mineral exploration, according to the Mineral Commodity Summaries 2020 of the US Geological Survey (https://www.usgs.gov/centers/nmic/). The region contains important resources of copper, gold, silver, nickel, cobalt, iron, niobium, aluminum, zinc, lead, tin, lithium, chromium, and other metals. For example, Chile is the world’s largest copper producer and the second largest lithium producer. Brazil is the world’s leading niobium producer, the second largest producer of iron ore, and the third-ranked producer of tantalum. Cuba contains some of the largest reserves of nickel and cobalt in the world, associated with lateritic Ni-Co deposits. Mexico is traditionally the largest silver producer and contains the two largest mines in this commodity and, along with Peru, Chile, Bolivia and Argentina, accounts for more than half of the total amount of global silver production. The region also hosts several world-class gold mines (e.g., Pueblo Viejo in the Dominican Republic, Paracotu in Brazil, Veladero in Argentina, and Yanacocha in Peru). Also, Bolivia and Brazil are among the world’s leading producers of tin. The region hosts a variety of deposit types, among which the most outstanding are porphyry copper and epithermal precious metal, bauxite and lateritic nickel, lateritic iron ore from banded iron-formation, iron-oxide-copper-gold (IOCG), sulfide skarn, volcanogenic massive sulfide (VMS), Mississippi Valley type (MVT), primary and weathering-related Nb-bearing minerals associated with alkaline–carbonatite complexes, tin–antimony polymetallic veins, and ophiolitic chromite. This special issue on Mineral Deposits of Latin America and the Caribbean in the Boletín de la Sociedad Geológica Mexicana contains nineteen papers. Contributions describe mineral deposits from Mexico, Panama, Cuba, Dominican Republic, Colombia, Venezuela, Ecuador, Chile, and Argentina. This volume of papers covers four mineral systems (mafic-ultramafic orthomagmatic mineral systems, porphyry-skarn-epithermal mineral systems, iron oxide copper-gold mineral systems, and surficial mineral systems). This special issue also includes papers on industrial minerals, techniques for ore discovery (predictive modelling of mineral exploration using GIS), regional metallogeny and mining history.
26
Proenza, Joaquín A., Lisard Torró, and Carl E. Nelson. "Mineral deposits of Latin America and the Caribbean. Preface." Boletín de la Sociedad Geológica Mexicana 72, no. 3 (November 28, 2020): P250820. http://dx.doi.org/10.18268/bsgm2020v72n3p250820.
Full textAbstract:
The region that encompasses Latin America and the Caribbean is a preferential destination for mining and mineral exploration, according to the Mineral Commodity Summaries 2020 of the US Geological Survey (https://www.usgs.gov/centers/nmic/). The region contains important resources of copper, gold, silver, nickel, cobalt, iron, niobium, aluminum, zinc, lead, tin, lithium, chromium, and other metals. For example, Chile is the world’s largest copper producer and the second largest lithium producer. Brazil is the world’s leading niobium producer, the second largest producer of iron ore, and the third-ranked producer of tantalum. Cuba contains some of the largest reserves of nickel and cobalt in the world, associated with lateritic Ni-Co deposits. Mexico is traditionally the largest silver producer and contains the two largest mines in this commodity and, along with Peru, Chile, Bolivia and Argentina, accounts for more than half of the total amount of global silver production. The region also hosts several world-class gold mines (e.g., Pueblo Viejo in the Dominican Republic, Paracotu in Brazil, Veladero in Argentina, and Yanacocha in Peru). Also, Bolivia and Brazil are among the world’s leading producers of tin. The region hosts a variety of deposit types, among which the most outstanding are porphyry copper and epithermal precious metal, bauxite and lateritic nickel, lateritic iron ore from banded iron-formation, iron-oxide-copper-gold (IOCG), sulfide skarn, volcanogenic massive sulfide (VMS), Mississippi Valley type (MVT), primary and weathering-related Nb-bearing minerals associated with alkaline–carbonatite complexes, tin–antimony polymetallic veins, and ophiolitic chromite. This special issue on Mineral Deposits of Latin America and the Caribbean in the Boletín de la Sociedad Geológica Mexicana contains nineteen papers. Contributions describe mineral deposits from Mexico, Panama, Cuba, Dominican Republic, Colombia, Venezuela, Ecuador, Chile, and Argentina. This volume of papers covers four mineral systems (mafic-ultramafic orthomagmatic mineral systems, porphyry-skarn-epithermal mineral systems, iron oxide copper-gold mineral systems, and surficial mineral systems). This special issue also includes papers on industrial minerals, techniques for ore discovery (predictive modelling of mineral exploration using GIS), regional metallogeny and mining history.
27
Dunca, Emilia-Cornelia, Tiberiu Rusu, and Dorin Iancu. "Identification of pollution sources in closed mining sites with an Impact on the quality of surface water in the Brad area." MATEC Web of Conferences 342 (2021): 03012. http://dx.doi.org/10.1051/matecconf/202134203012.
Full textAbstract:
Pollution caused by closed mining activities is particularly difficult to treat because it dates back a very long time. Water contamination results from large-scale disturbance of the land on which the underground exploitation of the useful mineral substance took place. Discharges from underground mines can be treated as diffuse point sources; water quality is due to reactions that occur in an area that can cover tens of square kilometres. The main sources are groundwater, which increases after the pumping is stopped, and tailings stored in dumps and tailings ponds. When the mine closes, the pumps are stopped and the groundwater level rises until it reaches the surface or discharges into the aquifers above. Although discharges from wells and galleries are often the most visible sources, surface activities such as mineral processing, tailings and waste disposal are also a significant source of pollution. The river is located on the Barza gold-silver ore mining operation took place. The runoff waters present in this perimeter can transport contaminated sediments, where the tailings dumps are washed away by precipitation. The paper aims to identify the sources of surface water pollution in the Barza closed mining site that influences the quality of surface water.
28
Pradela, Alicja, and Andrzej Zygmuniak. "Changes to the structure of the hydrographic network within the Silesia-Cracow area of zinc and lead exploitation." Environmental & Socio-economic Studies 5, no. 2 (June 27, 2017): 37–48. http://dx.doi.org/10.1515/environ-2017-0010.
Full textAbstract:
Abstract The traditions related to mining activities in the Silesia-Cracow area go back to the 11th century when lead, silver, and iron ores were exploited from open pit mines. For centuries, the growth in ore exploitation was an incentive for the development of other industries (hard coal mining, steelmaking). This, in consequence, resulted in progressive urbanization. The areas analyzed are of highly transformed character, mainly because of mining activities. These changes are especially seen in relation to the aquatic environment since this component is exposed to heavy modifications due to the mining processes. Hence the study was carried out in order to determine the quantitative changes in the surface hydrographic network. It was found, that of the 62 main watercourses (existing during the whole analyzed period) 25 changed only slightly in terms of their length, 20 shortened by a few hundred meters and 17 lengthened. In the case of the aggregated length of the tributaries, the value increased for the 41 main watercourses, for 10 of them it was constant and was reduced slightly for a further 11. The areas where the length of the watercourses increased and the drainage density grew were found to be as well those where the total area of wetlands decreased. The element of the hydrographic network which was affected by the most changes was the water bodies. During the analyzed period of over 200 years, their number increased from 154 to 1413.
29
Moser, Michael, Simon Hye, Gert Goldenberg, Klaus Hanke, and Kristóf Kovács. "Digital documentation and visualization of archaeological excavations and finds using 3D scanning technology." Virtual Archaeology Review 1, no. 2 (May 25, 2010): 143. http://dx.doi.org/10.4995/var.2010.4717.
Full textAbstract:
<p>In 2007 the special research program HiMAT - History of Mining Activities in Tyrol and adjacent areas, focussing on environment and human societies, was established at the University of Innsbruck as an interdisciplinary and international research project, sponsored by the Austrian Science Fund (FWF). During late medieval and early modern times, the mining area of Schwaz in Tyrol became famous in Europe, due to the large scale exploitation of copper and silver bearing fahlores, going along with the development of high technologies in the field of mining and metallurgy. In that period, Schwaz was even called “the mother of all mines”.</p><p>In the area of Schwaz/Brixlegg the main focus of our research project is on early traces of copper mining and metallurgy dating back to the late Bronze Age. Such traces are still preserved, especially in boundary areas of the main ore deposits. On the basis of previous surveys a little valley called “Maukental” was chosen for archaeological investigations, because within this small area the entire copper production process of the late Bronze Age can be studied in detail. During the past two years, the Institute of Archaeology and Surveying and the Geoinformation Unit of the University of Innsbruck worked together in this area. One object of interest was a late Bronze Age ore dressing site situated in a former peat-bog. In this place the advantageous environment preserved fragile wooden structures and artefacts which could be digitally documented in the condition of retrieval.</p>
30
Ramsay, Nigel. "Stephen Rippon, Peter Claughton, and Chris Smart. Mining in a Medieval Landscape: The Royal Silver Mines of the Tamar Valley. Exeter: University of Exeter Press, 2009. Pp. 200. $36.00 (paper)." Journal of British Studies 50, no. 2 (April 2011): 493–94. http://dx.doi.org/10.1086/658223.
Full text
31
Sack, R. O., J. V. G. Lynch, and F. Foit. "Fahlore as a petrogenetic indicator: Keno Hill Ag-Pb-Zn District, Yukon, Canada." Mineralogical Magazine 67, no. 5 (October 2003): 1023–38. http://dx.doi.org/10.1180/0026461036750141.
Full textAbstract:
AbstractFahlores [~(Cu,Ag)10(Zn,Fe)2Sb4S13] from the Keno Hill mining district, central Yukon, Canada record virtually the entire petrogenetic history of a Cretaceous hydrothermal system extending over 40 km outward from the Mayo Lake granitic pluton. These fahlores are an essential constituent of polymetallic sulphide veins developed in a graphitic Mississippian quartzite, where they occur in association with sphalerite, pyrargyrite, galena and siderite. Fahlores exhibit pronounced east-west zoning in average Ag/(Ag+Cu) and Zn/(Zn+Fe) values, with these simultaneously increasing and decreasing from east to west over 20 km of hydrothermal activity. These zonations are coupled with average Ag/(Ag+Cu) and Zn/(Zn+Fe) values in fahlore roughly paralleling the 300°C isotherm for fahlores in equilibrium with pyrargyrite, miargyrite and sphalerite in the simple system Ag2S-Cu2S-ZnS-FeS-Sb2S3. Early high-Ag, high-Zn fahlores from the eastern and western mines have Ag/(Ag+Cu) and Zn/(Zn+Fe) values requiring temperatures ≥400°C, in agreement with temperatures established from the As-content of arsenopyrite coexisting with pyrite, pyrrhotite and sphalerite. Ag/(Ag+Cu) and Zn/(Zn + Fe) values in later, main-stage fahlores are consistent with the 250–310°C range of temperatures established for boiling of Keno Hill fluids. Finally, Ag- and Fe-rich fahlores were produced by retrograde Fe-Zn exchange with sphalerite or crystallized from late-stage epithermal fluids which produced polybasite, stephanite, acanthite and wire silver. One such fahlore exhibits unmixing into high-Ag and low-Ag varieties. This is the first reported miscibility gap for freibergite fahlores and confirms the earlier prediction of such gaps.
32
Tosic, Gordana, and Dusan Raskovic. "Early-Christian monuments on the eastern slopes of the Kopaonik mountain." Zbornik radova Vizantoloskog instituta, no. 44 (2007): 27–45. http://dx.doi.org/10.2298/zrvi0744027t.
Full textAbstract:
Significant Early-Christian localities referring to the rich mining activities of this region were found on the Kopaonik Mountain or in the Silver Mountain, as it was named by Roman, Venetian, and Turkish sources. From broader point of view, even from the times of Roman provinces settlement on the Balkan, the area of Serbia with very thick settlements? net was used as a logistic and strategic support of the Roman Empire. The territory being the subject of our research is the zone where provinces Moesia Prima Mediterranean Dacia (Dacia Mediterranea) and Dardania meet. The sites that offer new data for the process of settlement and Christianization of these regions are CELESTIAL CHAIRS on the top of Kopaonik at the altitude of 1,800 m, DUB in Mala Vrbnica in the bottom of the Mountain and Gradac in Gornje Levice at 1,089 m altitude. They are in the northern part of Dardania, in the Province where silver with lead were dug as well as golden silver together with exploitation of iron, copper and mercury ores. The zone of these findings gravitates to Roman administrative center Municipium Dardanorum near to Socanica at Kosovo. Thus, it may be assumed that still non-referred northern border of Dardania could have covered eastern slopes of Kopaonik up to the bottom and border with Aleksandrovac Zupa. On the eastern slopes of Kopaonik three early-Christian basilicas were found; one in Celestial Chairs with floor mosaic; another in Gradac site in Gornje Levi}e within the fortress and the third one in the Dub site in a village Mala Vrbnica, with stone decorative plastic. All these buildings date from the period of 5-6th century based on archeological material. Sites in Celestial Chairs and the one in Gornje Levice have, as many castles in broader vicinity, continuity of 4-6th century proved by founding of secular objects like fibula with bent legs, cross-like fibulas, money, ceramic fragments with rake ornaments. Porkpie stated that Dardania had reconditioned 68 fortresses out of 70 original ones, and only 8 were new-built. Celestial Chairs visually dominate the whole area. From this place, one can see as on his palm Early-Byzantine fortresses on Vojetin, Cucaica and in Gornje Levice, as well as the mines in Zaplanina and Belo Brdo. Having in mind natural features of the terrain historical surrounding, and, first of all, archeological finding, we think that Celestial Chairs and Gornje Levice could be the spot to look for spiritual and administrative center of the northern part of Roman province Dardania.
33
Siewers, Alfred K. "Stephen Rippon, Peter Claughton, and Chris Smart, Mining in a Medieval Landscape: The Royal Silver Mines of the Tamar Valley. Exeter: University of Exeter Press, 2009. Pp. xiii, 207; black-and-white frontispiece, black-and-white figures, and tables." Speculum 86, no. 3 (July 2011): 798–800. http://dx.doi.org/10.1017/s0038713411002077.
Full text
34
Sejkora, Jiří, Pavel Škácha, Jakub Plášil, Zdeněk Dolníček, and Jana Ulmanová. "Hrabákite, Ni9PbSbS8, a new member of the hauchecornite group from Příbram, Czech Republic." Mineralogical Magazine 85, no. 2 (January 14, 2021): 189–96. http://dx.doi.org/10.1180/mgm.2021.1.
Full textAbstract:
AbstractThe new mineral hrabákite (IMA2020-034) was found in siderite–sphalerite gangue with minor dolomite–ankerite at the dump of shaft No. 9, one of the mines in the abandoned Příbram uranium and base-metal district, central Bohemia, Czech Republic. Hrabákite is associated with Pb-rich tučekite, Hg-rich silver, stephanite, nickeline, millerite, gersdorffite, sphalerite and galena. The new mineral occurs as rare prismatic crystals up to 120 μm in size and allotriomorphic grains. Hrabákite is grey with a brownish tint. Mohs hardness is ca. 5–6; the calculated density is 6.37 g.cm–3. In reflected light, hrabákite is grey with a brown hue. Bireflectance is weak and pleochroism was not observed. Anisotropy under crossed polars is very weak (brownish tints) to absent. Internal reflections were not observed. Reflectance values of hrabákite in air (Rmin–Rmax, %) are: 39.6–42.5 at 470 nm, 45.0–47.5 at 546 nm, 46.9–49.2 at 589 nm and 48.9–51.2 at 650 nm). The empirical formula for hrabákite, based on electron-microprobe analyses (n = 11), is (Ni8.91Co0.09Fe0.03)9.03(Pb0.94Hg0.04)0.98(Sb0.91As0.08)0.99S7.99. The ideal formula is Ni9PbSbS8, which requires Ni 47.44, Pb 18.60, Sb 10.93 and S 23.03, total of 100.00 wt.%. Hrabákite is tetragonal, P4/mmm, a = 7.3085(4), c = 5.3969(3) Å, with V = 288.27(3) Å3 and Z = 1. The strongest reflections of the calculated powder X-ray diffraction pattern [d, Å (I)(hkl)] are: 3.6543(57)(200); 3.2685(68)(210); 2.7957(100)(211); 2.3920(87)(112); 2.3112(78)(310); 1.8663(74)(222); and 1.8083(71)(302). According to the single-crystal X-ray diffraction data (Rint = 0.0218), the unit cell of hrabákite is undoubtedly similar to the cell reported for tučekite. The structure contains four metal cation sites, two Sb (Sb1 dominated by Pb2+) and two Ni (with minor Co2+ content) sites. The close similarity in metrics between hrabákite and tučekite is due to similar bond lengths of Pb–S and Sb–S pairs. Hrabákite is named after Josef Hrabák, the former professor of the Příbram Mining College.
35
Silvestre Madrid, María, and Emiliano Almansa Rodríguez. "Almadén en la España del siglo XVII. Crisis de producción de azogue y soluciones propuestas." Vínculos de Historia. Revista del Departamento de Historia de la Universidad de Castilla-La Mancha, no. 8 (June 20, 2019): 337. http://dx.doi.org/10.18239/vdh_2019.08.17.
Full textAbstract:
RESUMENA mediados del siglo XVI, la mina de azogue de Almadén adquirió una gran importancia debido al descubrimiento del método industrial de la amalgamación para los minerales de plata de baja ley. Los accidentes, enfermedades y el impago de salarios hicieron que el trabajo de minero no fuera atractivo para los forasteros, de modo que faltaban brazos para dar la producción de azogue necesaria para abastecer a las minas americanas de plata. En el siglo XVII, el Consejo de Hacienda intentó solucionar el problema de las consignaciones económicas, lo que resultó harto difícil en una España con graves dificultades financieras y, por otra parte, trató de conseguir mano de obra para la mina, fuera forzada, esclava o procedente del repartimiento de pueblos cercanos.PALABRAS CLAVE: Almadén, azogue, siglo XVII, mineros, repartimiento.ABSTRACTIn the middle of the 16th century, the Almadén quicksilver mine acquired considerable importance due to the discovery of the industrial method of amalgamation of low-grade silver ores. Accidents, diseases and unpaid wages made mining work unattractive to outsiders, so manpower was needed for the quicksilver production necessary to supply American silver mines. In the 17th century, theFinance Council attempted to solve the problem of economic consignments, which was very difficult in a Spain with serious financial difficulties and, meanwhile, tried to obtain workers for the mine, be they forced, enslaved or from the repartimiento of nearby villages.KEY WORDS: Almadén, quicksilver, 17th century, miners, repartimiento. BIBLIOGRAFÍAAgricolae, G., De Re Metallica libri XII, Basileae: Froben, 1556.Álvarez Nogal, C., El crédito de la monarquía hispánica en el reinado de Felipe IV, Ávila, Junta de Castilla y León, 1997.Bleiberg, G., El informe secreto de Mateo Alemán sobre el trabajo forzoso en las minas de Almadén, Londres, Tamesis Book Limited, 1984.Carande, R., Carlos V y sus banqueros, Barcelona, Editorial Crítica, 1987.Castillo Martos, M., Bartolomé de Medina y el siglo XVI. Un sevillano lleva la revolución tecnológica a América, Sevilla, Ayuntamiento de Sevilla, 2001.Dobado González, R., “Las minas de Almadén, el monopolio del azogue y la producción de plata en Nueva España en el siglo XVIII”, en La savia del imperio. Tres estudios de economía colonial, Salamanca, 1997, Ediciones Universidad de Salamanca, pp. 403-495.Gil Bautista, R., Almadén del Azogue, Puertollano, Ediciones Puertollano, 2013.Gil Bautista, R., Las minas de Almadén en la Edad Moderna, Publicaciones de la Universidad de Alicante, Alicante, 2015.González, T., Registro y relación general de minas de la Corona de Castilla, Madrid, Imprenta de Don Miguel de Burgos, 1832.Hernández Sobrino, A., Los esclavos del rey. Los forzados de Su Majestad en las minas de Almadén, años 1550-1800, Ciudad Real, Fundación Almadén y Asociación Montesur, 1982.Hernández Sobrino, A., Silvestre Madrid, M. A. y Almansa Rodríguez, E., “La mina de azogue de Almadén en la época del Quijote” en La España del Quijote: IV Centenario Cervantes, Llerena, 2017, Sociedad Extremeña de Historia, pp. 161-172.Langue, F. y Salazar-Soler, C., Dictionaire des termes miniers en usage en Amerique espagnole (XVI-XIX siecle), Paris, Editions Recherche sur les Civilisations, 1993.Matilla Tascón, A., Historia de las minas de Almadén, Vol. I: Desde la época romana hasta el año 1645, Madrid, Consejo de Administración de Minas de Almadén y Arrayanes, 1958.Matilla Tascón, A., Historia de las minas de Almadén, vol. II: Desde 1646 a 1799, Madrid, Minas de Almadén y Arrayanes, S.A. e Instituto de Estudios Fiscales, 1987.Menéndez Navarro, A., Catástrofe morboso de las minas mercuriales de la villa de Almadén del Azogue (1778) de José Parés y Franqués, edición anotada, Ciudad Real, Universidad de Castilla- La Mancha, 1998.Prieto, C., La minería en el Nuevo Mundo, Madrid, Ediciones de la Revista de Occidente, 1977.Prior Cabanillas, J., La pena de minas: los forzados de Almadén, 1646-1649, Ciudad Real, Fundación Almadén y Junta de Comunidades de Castilla-La Mancha, 2006.Sánchez Gómez, J., De minería, metalurgia y comercio de metales. La minería no férrica en el reino de Castilla, 1450-1610, Salamanca, Universidad de Salamanca e Instituto Tecnológico GeoMinero de España, 1989.Sánchez Gómez, J., “La técnica en la producción de metales monedables en España y en América”, en La savia del imperio. Tres estudios de economía colonial, Salamanca, Ediciones Universidad de Salamanca, 1997, pp. 17-264.Silvestre Madrid, M. Á., Mineros de Almadén en la América Colonial, Trabajo Fin de Máster, Universidad de Córdoba, inédito, 2014.Voltes Bou, P., El ocaso de los Fugger en España. Operaciones de los Fugger en la España del siglo XVII, Ciudad Real, Fundación Almadén, 2009.
36
Sivarajah, Branaavan, Jesse C. Vermaire, and John P. Smol. "Assessing the potential environmental factors affecting cladoceran assemblage composition in arsenic-contaminated lakes near abandoned silver mines." Journal of Limnology 80, no. 2 (May 17, 2021). http://dx.doi.org/10.4081/jlimnol.2021.2004.
Full textAbstract:
Silver mining has a long history in Cobalt (Ontario, Canada), and it has left a complex environmental legacy where many lakes are contaminated with arsenic-rich mine tailings. In this exploratory survey, we examined subfossil Cladocera remains in the surface sediments of 22 lakes in the abandoned mining region to assess which environmental variables may be influencing the recent assemblage structure. Further, using a “top-bottom” paleolimnological approach, we compared the recent (top) and older (bottom) assemblages from a subset of 16 lakes to determine how cladoceran composition has changed in these lakes. Our regional survey suggests that the cladoceran assemblages in the Cobalt area are primarily structured by differences in lake depth, while site-specific limnological characteristics, including those related to past mining activities, may have limited roles in shaping the recent cladoceran compositions. The top-bottom paleolimnological analysis suggests that the cladoceran assemblages have changed in most lakes around Cobalt, however the magnitude and nature of changes varied across the study sites. As with most regional biological surveys, the responses to historical mining activities were not uniform across all sites, which further emphasizes the importance of considering site-specific limnological characteristics and multiple environmental stressors when assessing the impacts of mining pollution.
37
Mikulski, Stanisław Z., and Holly J. Stein. "RE-OS ISOTOPIC AGE OF THE CU-AG SULPHIDE ORE AND ITS MINERALOGICAL AND GEOCHEMICAL CHARACTERISTIC IN THE LUBIN–POLKOWICE MINING AREA (SW POLAND)." Biuletyn Państwowego Instytutu Geologicznego, May 29, 2017, 79–96. http://dx.doi.org/10.5604/01.3001.0010.0105.
Full textAbstract:
In the paper we present the results of Re-Os isotopic studies as well as the mineralogical and geochemical characteristic of bornite veinlets with chalcopyrite ± chalcocite margins and chalcopyrite veinlets that are parallel to sub-parallel to bedding in Kupferschiefer from the underground workings of the Lubin and Polkowice mines in SW Poland. Kupferschiefer samples are of grade from 2.5 to 14.2% Cu and with silver admixtures from 40 to 900 ppm and organic matter contents ca. 6%. The ratios of Co/Ni = 0.1–0.7, V/Cr = 4–17 and Fe2O3/C org = 0.6–1.9 are in the range of values typical for the Kupferschiefer. Besides, copper sulphides, which commonly contain silver admixtures (e.g. chalcocite – 0.44–5.03 wt.%., bornite – 0.33–0.77 wt.%., chalcopyrite 0.09–0.20 wt.%) are associated with minor galena, sphalerite, Ag-minerals and common pyrite framboids. In the isotopically analysed bornite and chalcopyrite samples Re concentrations ranging from 5.7 to 12 ppb, and total Os concentrations ranging from 27 to 52 ppt. Significant common Os is present in all of the analysed sulphides. The isotopic ratios of 187Re/188Os are very high (range: 2269–2942), and of 187Os/188Os from 9.8 to ca. 12.4. Re-Os model ages calculated for these isotopic ratios are in the range from 256 to 268 Ma and for one of the chalcopyrite veinlet was 217 ±2 Ma. Taking into the account the values of the isotopic ratios of 187Re/188Os, it was possible to construct the Re-Os isochrone age for A Model 1 regression based on four different samples. They yields age of 212 ±7 Ma, with an initial 187Os/188Os ratio of 2.13 ±0.31 (MSWD = 1.3). Re-Os isochrone age indicates for bornite and chalcopyrite crystallization event of the Ag-bearing Cu sulphide mineralization within the Kupferschiefer in the Late Triassic (Norian), ca. 212 ±7 Ma.