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Dissertations / Theses on the topic 'Geochemistry and Mineralogy'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Cook, Nigel J. "Mineralogy and geochemistry of sulphide deposits at Sulitjelma, Norway." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38268.

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2

Koukouzas, Nikolaos K. "Geology, mineralogy, and geochemistry of Greek perlites : industrial applications." Thesis, University of Leicester, 1994. http://hdl.handle.net/2381/35056.

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The most important Greek perlite deposits crop out on the islands of Milos (Provatas and Trachilas areas), Kimolos, and Kos, Aegean Sea, which are currently under exploitation. More than 200 specimens of raw perlite were collected from these perlite deposits and were subjected to physical, chemical, petrographic and expansion tests. The perlite deposits have been formed by a phreatomagmatic eruption, which is the last event of volcanic activity on the islands. Most of the deposits comprise the sand, ash, and perlitic fragments' formation, the perlitic lahar, the perlite beds, and the perlitic

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3

Awoleye, Olumuyiwa Adebayo. "Weathering and iron oxide mineralogy of Hong Kong granite." Thesis, University of Glasgow, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318702.

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4

Rowins, Stephen Michael. "Mineralogy and geochemistry of the Murdock Creek intrusion, Kirkland Lake, Ontario." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5583.

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The Murdock Creek intrusion, immediately southwest of Kirkland Lake, Ontario, in the southern part of the Abitibi belt, is a member of a suite of late Archean ($\approx$2680 Ma) syenitic intrusions located within and adjacent to the Kirkland Lake-Larder Lake fault zone (KLF), which host virtually all of the gold mineralization in the Kirkland Lake camp. An early crystallizing mafic margin consisting of clinopyroxenite, meladiorite, melamonzodiorite, and melasyenite encloses an extensive felsic core of alkali-feldspar syenite. A coeval hornblendite unit with lamprophyric affinities, intrudes th

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5

Chakraborty, Sumit. "Multicomponent cation diffusion in aluminosilicate garnets: Theory, experiments and applications." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185214.

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Results from experiments in this work have been combined with existing data to yield tracer diffusivities of divalent cations in natural multicomponent garnets at 10-40 kb, 1100 - 1475°C. For the garnet compositions studied in this work, the activation energy for tracer diffusion of Mn < Fe ≃ Mg, while activation volumes increase in the order Mg < Fe < Mn. These data may be used with theoretical models to calculate the full multicomponent diffusion coefficient matrix as a function of pressure, temperature, composition and oxygen fugacity. An analytical model has been developed to describe the

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6

Valencia-Moreno, Martin Andres 1961. "Geochemistry of Laramide granitoids and associated porphyry copper mineralization in northwest Mexico." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282731.

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The present study investigates the effects of basement variations on the geochemical composition of the Laramide plutonic belt of northwestern Mexico, and implications for the development of the associated porphyry copper mineralization. In the north part, the belt intruded rocks of the North America and Caborca terranes representing cratonic basements juxtaposed by Mid-Jurassic strike-slip faulting. The central part of the belt was emplaced in the Cortes terrane which contains Paleozoic eugeoclinal sequences accreted to North America between Mid-Permian and Late Triassic times. The southern p

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7

Scudder, Susan Marie. "A Multi-Method Study of Metamorphism and Fluid Flow During Contact Metamorphism of the May Lake Interpluton Screen, Yosemite National Park, California." Thesis, San Jose State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10624355.

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<p> The May Lake interpluton screen is a 4 km long, &sim;0.5 km wide swath of metamorphic rock cropping out between plutons of the &sim;103 Ma Yosemite Valley Intrusive Suite and the &sim;93-85 Ma Tuolumne Intrusive Suite in Yosemite National Park, California. Metasomatic alteration and recrystallization due to contact metamorphism and fluid infiltration resulted from the emplacement of the Cretaceous plutons. Mineral assemblages are consistent with metamorphism to hornblende-hornfels and amphibolite facies. The presence of sillimanite-bearing metapelite and more Mg-rich clinopyroxene in calc-

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8

Shang, Yuqiang. "Mineralogy, lithostratigraphy and geochemistry of North Ingebright Lake, Saskatchewan, Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ57516.pdf.

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9

Dixon, Andrea. "Mineralogy and geochemistry of pegmatites on Mount Begbie, British Columbia." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45440.

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The pegmatite field on Mount Begbie, near Revelstoke, B.C., is a Li-rich pegmatite field in the southern Canadian Cordillera that is relatively well-known among prospectors, but until now, under-studied by academics. Mapping the pegmatite field on the northeastern slope of the mountain revealed a dense population of S-type granitic pegmatites belonging to the LCT family with diverse ranges of mineralogy corresponding to barren, beryl-columbite, beryl-columbite-phosphate, and lepidolite-subtype compositions. Typically, the pegmatites are not strongly metamorphosed and show only rare foliation

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10

Saigal, Neeta. "Mineralogy, petrology and geochemistry of Caradocian phosphorites, N. Wales, U.K." Thesis, University of St Andrews, 1985. http://hdl.handle.net/10023/15566.

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Caradocian phosphorite nodules sampled from the Powys county of N. Wales, U.K. have been investigated in order to characterize the deposit geochemically, mineralogically and petrographically and to evaluate their mode of formation. Nodules are the main form of phosphorite although phosphatized organic fragments and oolitic grains are also present. On the basis of petrographio characteristics, nodules are grouped into two types; Type I nodules (with abundant organic material) and Type II nodules (with abundant clay minerals). Mineralogical compositions of the phosphorite nodules reflect varying

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11

Ayorinde, Adebayo O. "MINERALOGY AND GEOCHEMISTRY OF THE BAUXITE DEPOSITS (CRETACEOUS), WILKINSON COUNTY, GEORGIA." Digital Archive @ GSU, 2011. http://digitalarchive.gsu.edu/geosciences_theses/30.

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Cretaceous bauxite deposits from Hall and Veneer mines, Wilkinson County, Georgia are composed of kaolinite, gibbsite, goethite, anatase, nordstrandite and bohemite. Quartz and micas are absent in the samples. The presence of boehmite and goethite are evidence of intense weathering forming the bauxite deposits. The extremely high values of the Chemical Index of Alteration (CIA) which is over 99, and the low values of the alkali metals and alkali earth metals, support an intense weathering origin for the bauxite deposit. There is evidence of deposition in the mines based on the presence of

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12

South, Jonathan Kyle. "Mineralogy and Geochemistry of the Dumper Dew Pegmatite, Oxford County, Maine." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/964.

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The Dumper Dew is a newly discovered pegmatite located on the eastfacing slope of Uncle Tom Mountain in Oxford County, Maine. It is a geochemically evolved LCT-type pegmatite petrogenetically linked to the middle Paleozoic Sebago batholith. Shallow emplacement of the Dumper Dew is evidenced by abundant miarolitic cavities found in the pegmatite. The sheet-like structure of the pegmatite coupled with its intrusion in lowmetamorphic grade country rock suggests rapid crystallization. Northern portions of the wall zone and intermediate zones have undergone hydrothermal alteration by the mi

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13

Mahmood, Layla A. "Mineralogy, petrology and geochemistry of some zoned dioritic complexes in Scotland." Thesis, University of St Andrews, 1986. http://hdl.handle.net/10023/15475.

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This study is an investigation into the nature and causes of petrological zonation in calc-alkaline diorite-granite plutons from the Newer granites of the Caledonian orogeny in Scotland. Six plutons were used for the study, namely Garabal Hill-Glen Fyne in the western Highlands, Glen Tilt and Glen Doll in the eastern Highlands, Comrie in the southern Highlands, and Carsphairn and Loch Doon in the Southern Uplands. The petrological zoning is concentric in the Southern Uplands and Comrie and irregular in the other three. The approach has been to acquire data on the petrography, mineral chemistry

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14

Viola, Irene. "Mineralogy and geochemistry of authigenic carbonates from the Gulf of Cadiz." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9508.

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Mestrado em Ciências do Mar e das Zonas Costeiras<br>Este trabalho apresenta a caracterização mineralógica e geoquímica de carbonatos autigénicos do Golfo de Cádis. Divide-se numa primeira parte introdutória onde se apresenta um resumo dos conceitos teóricos e o enquadramento geológico e estrutural da área em estudo, seguido da investigação realizada, incluindo a caracterização das amostras estudadas, a descrição dos métodos analíticos e apresentação e discussão dos resultados obtidos, que permitiram a sua caracterização mineralógica e geoquímica. As amostras estudadas provêm de vári

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15

Schmidberger, Stefanie. "Hf, Sr, Nd and Pb isotope systematics and major and trace element compositions of the Archean subcratonic lithosphere beneath Somerset Island, Arctic Canada." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37656.

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Hf, Sr, Nd and Pb isotopes, and major, trace and rare earth elements (REE) were determined for a suite of peridotite and pyroxenite xenoliths, constituent garnet and clinopyroxene and the host Nikos kimberlite (100 Ma) from Somerset Island, in order to constrain the chemical and isotopic composition of the lithosphere beneath the northern Canadian craton. The refractory Nikos peridotites are characterized by high olivine forsterite contents (avg. Fo = 92.3) and depletions in incompatible major elements (Fe, Al, Ca), but are enriched in incompatible trace elements, such as large ion lithophile

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16

Linnen, Robert L. "Contrasting origins of Sn-W mineralization in western Thailand." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70272.

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Investigations of pegmatite, stockwork and replacement deposits, using geological, whole-rock and mineral chemistry, fluid inclusion, and stable isotope data, were undertaken to establish some of the controls of mineralization in the western Thai Sn-W belt.<br>Cassiterite was saturated in the late-stage melt in the Nong Sua granitic pegmatite and subsequently with wolframite in orthomagmatic fluids. The latter mixed with external aqueous and aqueous-carbonic fluids of evolved meteoric or metamorphic origin at $ le$650$ sp circ$C and $ le$3.8 kbar. Hydrothermal cassiterite and wolframite crysta

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17

Calkins, Brad Thomas 1953. "Petrographic, geochemical, X-ray, and stable isotope studies at the Morenci porphyry copper deposit, Greenlee County, Arizona." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/278615.

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Morenci is located in southeast Arizona. Copper grade hypogene mineralization averages 0.15%; one or more generations of supergene enrichment have increased mineralization to 0.96%. Intense supergene alteration has made it difficult to determine phyllosilicate paragenesis. The purpose of this study is to differentiate hypogene from supergene phyllosilicates. Forty-nine samples from five drill holes were obtained for petrographic, geochemical, mineralogical, and stable isotope data. Petrographic examination, X-ray diffraction and X-ray powder camera techniques established alteration of feldspar

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18

Castro-Reino, Sergio Francisco. "Intrusion-related mineralization in the central sector of the Sierra Madre Oriental, Mexico." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280679.

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The Concepcion del Oro, Providencia, Noche Buena and Santa Rosa igneous centers are located in the central sector of the Sierra Madre Oriental, to the southwest from the city of Saltillo, in the state of Zacatecas, Mexico. Their associated mineral deposits constitute a coherent igneous and metallogenic area. It is characterized by a sequence of magmatic bodies intruding a predominantly carbonate sedimentary sequence of Mesozoic age. Field reconnaissance, whole rock major, trace and isotope geochemistry, and mineral chemistry define three magmatic pulses. The first pulse is characterized by a i

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19

Meza-Figueroa, Diana Maria 1969. "Geochemistry and characterization of intermediate temperature eclogites from the Acatlan Complex, southern Mexico." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282762.

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The Acatlan Complex of southern Mexico is one of two high-pressure metamorphic belts reported in Mexico. This complex contains an extensive sequence of metabasic, pelitic, granitic, mafic, ultramafic and carbonate rocks affected by an eclogite-facies metamorphic event of apparently Devonian age and subsequent overprinting of amphibolite and greenschist metamorphism. The purpose of this study was to characterize the metabasic eclogites from the Paleozoic Acatlan Complex, southern Mexico in terms of their thermobarometric conditions of formation as well as to identify the nature of the magmatic

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20

Ochoa-Landin, Lucas Hilario 1955. "Geological, sedimentological and geochemical studies of the Boleo copper-cobalt-zinc deposit, Santa Rosalia, Baja California, Mexico." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/288901.

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The Santa Rosalia basin is a NW-SE elongated and fault limited basin, which evolved from Upper Miocene to Pleistocene time. The transtensional Upper Miocene Santa Rosalia basin located in central Baja California, consists of almost 500 m of nonmarine to marine sedimentary rocks, with tuffaceous beds interbedded in its lower part. The sedimentary rocks consist of the Boleo Formation, which is 200 to 300 m thick and is dominated in its lower part by marine transgressive sediments and evaporite bodies followed by 170 to 300 m of clastic coarsening upward fan-delta marine-nonmarine sequence. The c

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21

Mazdab, Frank K. "The distribution of trace elements in iron sulfides and associated chlorine-bearing silicates." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/290301.

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Pyrrhotite and pyrite commonly contain minor quantities of cobalt, nickel, arsenic and other trace elements, which reflect major effects of source lithology and fluid chemistry, and subordinate effects relating to local processes. Electron probe micro-analyses (EPMA) of silicates from a suite of fifteen metasomatic Fe-oxide and affiliated ore samples show enrichments of chlorine in biopyriboles associated with Co-bearing iron sulfides and arsenides. Biotite from several localities contains from 1.5 to over 5.5 wt.% Cl. Amphiboles from several localities are also Cl-enriched, with up to 2.7 wt.

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22

Evelsizor, Aaron. "Preservation of organic matter within the lower Huron Member of the Ohio Shale (Devonian),Scioto County, Ohio." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587418199146213.

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23

Popoola, Rhoda O. "Sedimentology and Geochemistry of Weisner Formation, Bartow County, Georgia." Digital Archive @ GSU, 2013. http://digitalarchive.gsu.edu/geosciences_theses/56.

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The study area is located along Highway 20 east Cartersville Georgia, where outcrops of the Weisner Formation are exposed. The section consists of two main facies, the sandstone facies and shale facies. Parallel lamination and cross stratification are commonly observed sedimentary structures at this location. Petrographic study reveals that the grains in the sandstone are dominantly quartz, and to a smaller extent feldspar and mica. The shale facies is rich in Al2O3 and K2O compared to the sandstone facies. No fossil is observed in any of the two facies. Petrographic studies also indicate igne

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24

Algan, A. Oya. "Sedimentology and geochemistry of fine-grained sediments in the Solent Estuarine System." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241246.

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25

Khademi-Moghari, Hossein. "Stable isotope geochemistry, mineralogy, and microscopy of gypsiferous soils from central Iran." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23945.pdf.

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26

Brown, Jarrod A. "Mineralogy and geochemistry of alkali feldspars from the Tanco pegmatite, southeastern Manitoba." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62697.pdf.

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27

Dalsin, Mallory Linda. "The mineralogy, geochemistry and geochronology of the Wicheeda Carbonatite Complex, British Columbia." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45393.

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Carbonatites are rare magmatic rocks composed of greater than 50% carbonate minerals. They are generally associated with continental rift-related tectonic settings and are commonly enriched in rare earth elements (REE), Nb, and P. The Wicheeda carbonatite complex, located 80 km northeast of Prince George in British Columbia, Canada, has been historically explored for its REE potential, but until recently there has been very little scientific study. The purpose of this study was to explore the geology, mineralogy, geochemistry, and geochronology of the Wicheeda Carbonatite Complex. The comp

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28

Clark, Kimberly T. "Contact Zone Mineralogy and Geochemistry of the Mt. Mica Pegmatite, Oxford County, Maine." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1786.

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This study focuses on exocontact mineral assemblages to determine composition, thermal signatures, and the extent of exomorphism that occurred between the Mt. Mica pegmatite and the migmatite host rock at the contact. Biotite-garnet thermometry of country rock samples resulted in an average temperature estimate of 630 °C. Measured biotite Fe/(Fe+Mg) ratios were used to calculate an fO2 of -18. The results indicate that the country rock and pegmatite formed under similar oxidizing conditions near the quartz-fayalite-magnetite (QFM) equilibria buffer. Whole rock (REE) analysis indicates an inter

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29

Salem, Hanaa Mahmoud. "Geochemistry, mineralogy, and genesis of the Copperstone gold deposit, La Paz County, Arizona." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186423.

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Copperstone is a mid-Tertiary "detachment gold" deposit that is herein classified as a new subtype of epithermal deposit. Copperstone is similar to many active geothermal systems in terms of host lithology, temperature, and related siliceous alteration mineralogy, except in the hypogene oxide assemblages, the high salinity, and the lack of sulfides and the pathfinder toxic elements. The host rock is mainly Jurassic quartz latite porphyry and Tertiary sedimentary breccias. Early stages of alteration were K-metasomatic and propylitic, and alteration that accompanied gold mineralization was mainl

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30

Foley, Nora Katherine. "Petrology and geochemistry of precious and base metal mineralization, North Amethyst vein system Mineral County, Colorado." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-06062008-172015/.

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31

Alsharari, Musaed Amish. "Reclamation of fine-textured sodic soil using gypsum, langbeinite, and calcium chloride." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/282872.

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The effects of various application rates of gypsum (Aqua-cal = finely ground gypsum), langbeinite (K₂SO₄.2MgSO₄), and CaCl₂ (anhydrous) on exchangeable Na removal and saturated hydraulic conductivity of a sodic soil were investigated under laboratory batch studies and laboratory column leaching studies. The research involved four phases of studies. Characterization of the soil and irrigation water indicated that the soil sample is sodic (ESP=35.3), ECₑ = 3.36 dS/m), and the irrigation water is moderately saline (EC = 2.2 dS/m). The laboratory batch studies showed that CaCl₂ and langbeinite tre

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32

Malatji, Tsholofelo S. "Petrological, mineralogical and geochemical studies of Zhongchang and Yantiangou ultramafic intrusions from the Panxi region, Sichuan Province, S-W China. Metallogenic and Exploration implications." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1012951.

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The Emeishan Large Igneous Province is one of the largest igneous provinces in the world. It is marked by basaltic extrusives that vary in Ti amount, classified as high Ti and low Ti. Several mafic to ultramafic intrusions occur in the province as well as granitic intrusions. The mafic-ultramafic intrusions are associated with mineralization; large layered utlramafic intrusions bearing Fe-Ti-V mineralization, while small dyke like or sill like intrusions contain Cu-Ni-PGE mineralization. The Zhongchang and Yantiangou mafic- ultramafic intrusions are small such intrusions bearing Ni-Cu-PGE mine

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33

Aiglsperger, Thomas Hans. "Mineralogy and geochemistry of the platinum group elements (PGE), rare earth elements (REE) and scandium in nickel laterites." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/396340.

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Ni laterites are considered worthy targets for critical metals (CM) exploration as rare earth elements (REE), Sc and platinum group elements (PGE) can be concentrated during weathering as a result of residual and secondary enrichment. In this investigation geochemical and mineralogical data of CM from two different nickel laterite types (i) from the Moa Bay mining area in Cuba (oxide type) and (ii) from the Falcondo mining area in the Dominican Republic (hydrous Mg silicate type) are presented. Emphasis is given on examining their potential to accumulate CM and on processes involved. Results s

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34

P, Laiginhas Fernando A. T. "Diamonds from the ural mountains their characteristics and the mineralogy and geochemistry of their inclusions /." Connect to e-thesis, 2008. http://theses.gla.ac.uk/512/.

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Thesis (Ph.D.) - University of Glasgow, 2008.<br>Ph.D. thesis submitted to the Faculty of Physical Sciences, Department of Geographical and Earth Science, University of Glasgow, 2008. Includes bibliographical references. Print version also available.

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35

Gottschalk, Caroline McColl. "Geochemistry and mineralogy of Tongue River member coal from three Montana coal mines." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/gottschalk/GottschalkC0510.pdf.

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The geochemistry and mineralogy of coal from the Absaloka, Rosebud, and Decker mines located in the Powder River Basin in Montana have been characterized to determine the bulk composition of inorganic constituents in the coal; mineralogy of the coal, including the identity, morphology, composition and distribution of minerals present; occurrence and distribution of potentially hazardous trace elements; and chemical state of selected elements (N, O, S). These data were acquired using instrumental neutron activation analysis (INAA), X-ray powder diffraction (XRD), scanning electron microscopy (S

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36

Al-Yousef, Mariam. "Mineralogy, geochemistry and origin of Quaternary sabkhas in the Qatar peninsula, Arabian Gulf." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274567.

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37

Gibson, Sally Anne. "The geochemistry, mineralogy and petrology of the Trotternish Sill complex, Northern Skye, Scotland." Thesis, Kingston University, 1988. http://eprints.kingston.ac.uk/20514/.

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38

Tsikos, Harilaos. "The mineralogy and geochemistry of the Voëlwater banded iron-formation, Northern Cape Province." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1005589.

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Banded iron-formations (BIFs) are chemically precipitated sedimentary rocks in which Fe-rich bands or laminae alternate with Fe-poor ones. They formed within a specific time-span of the geological record. Their occurrence is restricted between 2.3 and 1.9 Ga, and characterises virtually all the major Precambrian-aged sedimentary basins of the world. The Precambrian Transvaal Basin in Griqualand West, South Africa, is noted for its well-developed BIF units. The Kuruman and Griquatown BIFs comprising the Asbesheuwels Subgroup (up to 1000m thick) are the best known and thickest of these. As far a

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39

Caudle, Dana. "Mineralogy, geochemistry, and geochronology of the KIN property pegmatites in eastern British Columbia." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57877.

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Rare earth element- and Nb-bearing NYF-type pegmatites are located on the KIN property, approximately 95 km northeast of Revelstoke, British Columbia. They intrude amphibolite grade rocks of the Neoproterozoic Horsethief Creek Group in the Omineca Belt of the Canadian Cordillera. The Cordillera has traditionally been associated with LCT-type pegmatites, making the presence of NYF-type pegmatites on the KIN property particularly unusual. These pegmatites are found in-situ in four localities and contain significant amounts of allanite-(Ce), monazite-(Ce), chevkinite-(Ce), aeschynite-(Ce), euxeni

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40

Deng, Xinhua. "Fine-grained sediments in Barbados Accretionary complex : mineralogy, sedimation, diagensis, geochemistry and fault mechanisms /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9842524.

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41

Goode, M. (Matthew). "Mineralogy and geochemistry of the Kivilompolo Mo mineralization, in the Peräpohja belt, northern Finland." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201905211879.

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Abstract. The Kivilompolo molybdenum occurrence is a small porphyritic mineralization hosted by granitic gneiss of the Kierovaara suite at the north-western margin of the Paleoproterozoic Peräpohja belt. The discovery of high-grade Au and Au-Co deposits in the Peräpohja belt provided the impetus for studying this mineralization. Using a combination of field work, petrography, whole-rock geochemistry and electron probe microanalysis, a deposit classification is proposed for the mineralization. The mineralization consists of abundant, coarse grained molybdenite flakes contained within quartz

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42

Teigler, Bernd. "Mineralogy, petrology and geochemistry of the lower and lower critical zones, Northwestern Bushveld Complex." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1005590.

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This study of the lower part of the Rustenburg Layered Suite in the Western Bushveld Complex is based mainly on drill core samples from three localities, which are approximately 130 km apart. The NG-sequence, situated in the northwestern sector of the complex (Union Section, R.P.M.) extends from the floor of the complex to the base of the upper Critical Zone. The sequence is ca. 1800 m thick and it comprises mainly ultramafic cumulates, namely pyroxenites, olivine pyroxenites, harzburgites and dunites. Norites and anorthos ites are present only in minor proportion. Within the upper half of the

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43

Bose, Kunal. "Equilibrium and kinetic studies in the system magnesium oxide-silicon dioxide-water." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186292.

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The dehydration kinetics of the reaction Talc = 3Enstatite + SiO₂ + H₂O have been experimentally determined as a function of grain size using synthetic and natural talc at 1 bar, 775 - 977°C. The experimental data on the 10-15 pm grain size can be described by a second order rate expression, with rate constant k = 1.98 (10⁴)exp( -EₐIRT min⁻¹, where the activation energy Eₐ = 372 ± 7 kJ/mol. The 1-2 pm and < O.lpm grain sizes of natural talc also follow the second-order rate law with faster dehydration rates but there is no significant difference in rates between the 1-2 μm and < 0.1 μm size fr

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McFarlane, Elisabeth Ann. "Differentiation in the early Earth: An experimental investigation." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186611.

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The Earth may have been covered with a terrestrial magma ocean. Is there evidence for resulting extensive mineral fractionation? Agee and Walker, 1988, proposed that significant flotation and addition of olivine into the upper mantle can explain the elevated Mg/Si ratio of this region. A number of element ratios were present in the primitive mantle of the Earth in approximately chondritic ratios (e.g., Jagoutz et al., 1979) providing constraints on amounts of mineral fractionation if appropriate partition coefficient values are known (e.g., Kato et al., 1988a). In addition, the V, Cr and Mn ab

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45

Nimfopoulos, M. K. "Manganese mineralisation near Kato Nevrokopi, Drama, Greece." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233390.

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The manganese mineralization near Kato Nevrokopi, Drama, in the Falakron mountains, is hosted by the Precambrian to Early Paleozoic Upper Marble. The marble and the underlying Lower Schist unit were metamorphosed between the Late Cambrian and the Carboniferous and were extensively deformed during the Alpine orogeny. The Alpine deformation is considered to have occurred between the Early Cretaceous and the Oligocene. Granodiorites and rhyodacites of Oligocene age outcrop also in the area. The mineralization near Kato Nevrokopi is confined to intersecting Alpine fault zones of northeast and nort

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46

Burley, Stuart Donald. "Diagenetic modelling in the Triassic Sherwood sandstone group of England and its offshore equivalents, United Kingdom continental shelf." Thesis, University of Hull, 1987. http://hydra.hull.ac.uk/resources/hull:3155.

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Curtolo, Murilo Zaine. "Caracterização tecnológica de matérias-primas cerâmicas proveniente da Formação Tatuí na região de Ipeúna (SP) /." Rio Claro, 2019. http://hdl.handle.net/11449/182437.

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Orientador: Guillermo Rafael Beltran Navarro<br>Resumo: Conhecido por ser um dos polos cerâmicos de maior destaque da América Latina, o Polo Cerâmico de Santa Gertrudes (PCSG), tem o diferencial de seus produtos associado aos argilitos e siltito provenientes da Formação Corumbataí (Neopermiano da Bacia do Paraná) aflorantes por toda a região dos municípios de Cordeirópolis, Ipeúna, Limeira, Piracicaba, Rio Claro e Santa Gertrudes (SP). Devido à sua importância no mercado nacional e internacional, o PCSG tem sido objeto constante de estudos que visam aprimorar sua produção e buscar novas fontes

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48

Hartley, George. "The influence of the partial pressure of carbon dioxide and substrate on the composition and mineralogy of carbonate overgrowths precipitated from seawater /." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68181.

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Calcite overgrowths were precipitated from artificial seawater at 25$ sp circ$C on synthetic calcite seeds using a chemo-stat precipitation technique to investigate the influence of the $P sb{CO sb2}$ on magnesium incorporation. Powder X-ray diffraction (APXRD) analyses of the overgrowths indicate that the amount of MgCO$ sb3$ incorporated during precipitation is independent of the $P sb{CO sb2}$ over 4 orders of magnitude (10$ sp{-0.5}$ to 10$ sp{-4.6}$atm). The magnesium content of the overgrowths estimated from mass balance calculations of carbonate alkalinity of the reacting solutions ($ D

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49

Ravi, Kommajosyula Subramanya. "Mineralogy, geochemistry, and dispersal of opaque oxides on the continental shelf of the Cascadia margin." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4363.

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Opaque oxide minerals (ilmenite, chromite, and magnetite) in sands from the Oregon continental shelf have been studied to establish the provenance, dispersal, and grade of potential shelf placer deposits. The study area extends southward from offshore of the Columbia River in northern Oregon to the Klamath River in northern California.

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50

Bosch, Gordon L. "The mineralogy and chemistry of pulverised fuel ash produced by three South African coal-burning power stations." Master's thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/22044.

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Bibliography: pages 161-166.<br>The chemical and mineral compositions are presented for 63 pulverized fuel ash (PFA) and 16 input coal samples collected from Lethabo, Duvha and Matla power stations over the period 1987-1988. Bulk chemical composition was determined by X-ray fluorescence spectrometry. The mineral concentrations were determined by semi-quantitative X-ray diffraction based on integrated counts over peak areas, with silicon used as an internal standard. The particle size distributions were determined for two sample sets from each power station with a Malvern Instruments Particle S

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