gold witwatersrand gold deposits from

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  (PDF) Witwatersrand gold debate - ResearchGate

  200611 · The Re-Os systematics of gold and sulfides from the Witwatersrand basin were utilized to determine whether the gold is detrital or was introduced by hydrothermal solutions from outside the basin ...

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  The formation of gold deposits in South Africa - Phys.org

  2017420 · In 1852, the English prospector J.H. Davis discovered the first gold in the Witwatersrand, leading to the South African gold rush and the discovery of much more gold deposits within the basin.

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  Recent developments concerning the geological history

  200211 · The Witwatersrand deposits are regarded as remnants of a gold megaevent at 2.9 Ga when environmental conditions are suggested to have been suitable for intense gold flux off the Archean land ...

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  The geochemistry of Witwatersrand-type gold deposits and …

  1985111 · Moreover, the Os contents of Witwatersrand gold are at odds with both the placer and hydrothermal models (Frimmel and Hennigh, 2015). Other alternative models have been advanced, such as the action of primitive microscopic life forms on gold precipitation (Mossman and Dyer, 1985) – see also Frimmel and Hennigh (2015), Heinrich …

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  Witwatersrand gold fields: Geology, genesis and exploration

  200011 · Gold has been produced from seven major gold fields located around the northern and western margin. of the 350-km-long Witwatersrand basin. Each gold field consists of one major and commonly ...

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  Chapter 31: Geologic Evidence of Syngenetic Gold in the Witwatersrand ...

  202011 · Witwatersrand-type gold deposits are further characterised by the presence of carbonaceous matter in the conglomerate horizons, as seams and nodules (see England et al., 2002;Frimmel et al., 2005 ...

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  Witwatersrand gold-pyrite-uraninite deposits do not support …

  200611 · Evolution of Early Earth's Atmosphere, Hydrosphere, and Biosphere - Constraints from Ore Deposits

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  Origin of Witwatersrand gold: a metamorphic devolatilisation ...

  20131122 · The work would not have been possible without mine access and research projects involving 40 Witwatersrand gold mines. Many people have debated and refined our ideas on Witwatersrand gold genesis; and Russell Myers, Jonathan Law and Andy Barnicoat are thanked especially for sharing their insights into the roles of the thrust …

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  Chapter 2 – THE NATURE OF THE WITWATERSRAND GOLD-URANIUM DEPOSITS ...

  R. F. Tucker R. Viljoen M. Viljoen. Geology. 2016. The world's greatest deposit of gold is hosted by the Archaean Witwatersrand sedimentary basin, situated in the central portion of the Kaapvaal Craton of South Africa. The geological setting of this….

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  Silver and mercury in gold particles from the Proterozoic Witwatersrand ...

  198621 · Neither Hg nor Ag in gold relate to the geochemistry of the original detrital gold.-G.J.N. Mineralogical-Petrographical Inst., Cologne Univ., Zulpicherstrasse 49, D-5000 Cologne, West Germany.

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