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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Sulfide Mineralization"”.
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Chemical weathering of sulfide mineralization on Mars
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1990.
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Buffalo Canyon: An Oligocene Greisen-Like Intrusion-Related Gold Deposit in the Union Mining District, Nye County, Nevada
… or propylitic assemblages. Base-metal sulfide mineralization occurs as veins and replacements, both of which are associated with tourmaline as a dominant gangue mineral. Base-metal sulfide mineralization has a Ag-Pb-Zn-Sb-As-(Au-Bi-Cu-Mo) signature. Free gold within low sulfide, 1-10cm …
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Composition and fabric of the Kupferschiefer, Sangerhausen Basin, Germany and a comparison to the Kupferschiefer in the Lubin Mining District, Poland
… exhibits textural, geochemical, and mineralization characteristics broadly similar to those of the Lubin mining district Kupferschiefer, with a few distinct differences. Sulfide mineralization, in the form of disseminated spherules, blebs, aggregates, framboids, and bedding-parallel …
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Ore mineralogy and paragenesis of a portion of the Great Gossan Lead district, Virginia
The Great Gossan Lead is a Ne-Sw trending belt of sulfide mineralization extending over 28 kilometers through Carroll and Grayson Counties in southwestern Virginia. The zone, which occurs in the metamorphic Late Precambrian Ashe formation, consists of a series of an echelon mineralized pods which …
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Lithology and alteration assemblages of the Boss iron-copper deposit, Iron and Dent Counties, Southeast Missouri
… Province known to contain appreciable copper sulfide mineralization. Major lithologies of Boss West Dome were characterized by petrologic, petrographic and geochemical methods. Previous lithologic classifications inaccurately characterized numerous rock units. Alteration assemblages at West …
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Petrofabric investigation of the sulfide-rich basal zone of the Duluth Complex
… Ga Duluth Complex hosts significant Cu–Ni–PGE sulfide deposits concentrated within its basal contact zone. Although the geochemical signatures of these ores are well documented, the physical mechanisms responsible for focusing sulfur-rich melts remain unclear. This study investigates whether …
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Environmental geochemistry of soils and stream sediments from Anka and Birnin-Gwari artisanal gold mining areas, NW Nigeria
… impact of artisanal mining of quartz-gold-sulfide mineralization. XRF determination of total elemental concentration was carried out, along with sequential extraction procedures (SEPs) and in vitro bioaccessibility tests using ICP-AES. The results show that the soils in both the Anka and …
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Upper Conglomerate and its importance to the Sierra Mojada Ag-Zn deposit system, Coahuila, Mexico, The
… portion of the district. Alteration and weak sulfide mineralization of the Upper Conglomerate above mineralized zones in the underlying Cretaceous carbonate rocks suggests that mineralization in the Sierra Mojada district occurred after deposition of the Upper Conglomerate. If the Upper …
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The igneous petrology, thermal history, and genesis of sedimentary rock-hosted Au deposits in the northern Battle Mountain mining district, Nevada
… dissertation examines the ages of magmatism and mineralization in the Battle Mountain mining district, the characteristics of hypogene sedimentary rock-hosted Au mineralization at the deposit scale, and potential novel techniques for dating alteration associated with this deposit style. Zircon …
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Gold and Base Metal Mineralization, Hydrothermal Alteration and Vein Paragenesis in the Spring Valley Deposit, Pershing County, Nevada
… the Humboldt Range in Pershing County, Nevada. Mineralization is primarily hosted within the Feldspar Porphyry, Agglomerate, Welded Tuff, Volcaniclastic Siltstone and Quartz-eye Rhyolite units of the Rochester Formation and in lithic tuffs and greenstones of the Limerick Formation. It occurs in …