Results 11 to 20 of about 36,947 (264)
Gold and gold-bearing volcanogenic massive sulphide deposits of the Central Cuba
Известия высших учебных заведений: Геология и разведка, 2021 Background. Volcanogenic massive sulphide deposits (VMS) are the most important sources of Cu and Zn; they account for a large share of the world production of Pb, Ag, Au, Se, Te, Bi and Sb, as well as small amounts of many other metals. The polymetallic
D. De la Nuez Colon +1 more
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Gold deposits in the Earth's history [PDF]
Геология рудных месторождений, 2019 The distribution of the main gold deposits in the history of the Earth is considered. Primary heterogeneity of the Archean crust by gold bearing is shown. The main gold ore metallogenic epochs are characterized. Links of gold deposits with VMS and Cu-Ni in the early periods of the Earth (Archaean-Proterozoic) and, in addition, with deposits of W, Mo ...
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Geological and mining features of gold deposits development of Ryabinovoe gold deposit
RUDN Journal of Engineering Researches, 2020 The significant role of the gold mining industry in the development of the Russian mineral resource system determines the search for new organizational, technical and geotechnical solutions to improve the completeness and efficiency of deposit development.
Sergey V. Ryzhov +2 more
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Andean Geology, 2021 A review of gold and gold bearing base metals deposits in Chile, indicate the existence of at least six different type of ore deposits, most largely formed during the Cenozoic with predominance in the Miocene. Mesozoic deposits are common but less relevant regarding their size and gold content. These hydrothermal ore deposits are genetically associated
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Deposits of gold-quartz formation in the Priamur province
Записки Горного института, 2017 A description of gold-quartz formation deposits in the Priamur gold province is presented. Prevalence of gold-quartz deposits defines metallogenic profile of the province and presence of numerous rich placers.
V. A. Stepanov, A. V. Mel'nikov
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Endogenous gold of the russian Altai
Руды и металлы, 2023 The Altai of Russia in the geological and metallogenic sense includes the Altai Mountains and the northwestern part of Rudny Altai, and in administrative terms – the Altai Territory and the Altai Republic. Gorny Altai has experienced a complex history of
Gaskov I. V.
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Multistage gold deposition in the Archaean Maria Lázara gold deposit (Goiás, Brazil)
Mineralium Deposita, 1994 The Maria Lazara gold deposit in the Archaean Guarinos greenstone belt, central Brazil, consists of quartz-carbonate veins formed in a ductile shear zone. Study of the sulphides and gold-bearing quartz-carbonate veins and veinlets of the potassic hydrothermal alteration zone reveals two stages of ore paragenesis.
Michel, D. +3 more
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China Geology, 2020 : Gold, iron, copper, lead-zinc and other mineral exploration in West Tianshan, Xinjiang Uygur Autonomous Region, has made remarkable progress in recent years.
Xue-zhong Yu +5 more
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Witwatersrand composite paleoplacers
Известия высших учебных заведений: Геология и разведка, 2021 Background. The Witwatersrand gold province located in South Africa is the richest in the world. The Witwatersrand deposits are composite, where osmirids and diamonds are mined along with gold, silver and uranium.
V. A. Stepanov
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Remote SensingGold is a vital strategic resource for many countries. The Laozhaiwan area is an important gold resource base in Yunnan Province and even nationwide.
Qi Chen +11 more
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