Results 11 to 20 of about 2,300,160 (396)
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 ...
N. Goryachev
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Texture and Trace Element Composition of Rutile in Orogenic Gold Deposits
Economic Geology, 2021 Rutile from a wide range of orogenic gold deposits and districts, including representative world-class deposits, was investigated for its texture and trace element composition using scanning electron microscopy, electron probe microanalysis, and laser ...
Marjorie Sciuba, G. Beaudoin
semanticscholar +1 more source
A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]
, 2017 The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J. +5 more
core +1 more source
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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A scale-integrated exploration model for orogenic gold deposits based on a mineral system approach
Geoscience Frontiers, 2020 Concept-based orogenic gold exploration requires a scale-integrated approach using a robust mineral system model. Most genetic hypotheses for orogenic gold deposits that involve near-surface or magmatic-hydrothermal fluids are now negated in terms of a ...
D. Groves, M. Santosh, Liang Zhang
semanticscholar +1 more source
Известия высших учебных заведений: Геология и разведка, 2019 About 1400 placers and several dozens of ore gold deposits are known in the Amur gold-bearing province. Placers are to a large degree worked out, so the future of the province is seen to be in the discovery of the new gold deposits.
V. A. Stepanov
doaj +1 more source
Scientific Reports, 2022 Carlin-type gold deposits are among the largest hydrothermal gold deposits in the world. However, direct dating the metallogenic age of these deposits is difficult, because not all deposits provide material suitable for conventional radiometric methods ...
Rongguo Hu +8 more
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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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Temporal relations between mineral deposits and global tectonic cycles [PDF]
, 2013 Natural Environment Research Council (grant NE/J021822/1) supported this research.Mineral deposits are heterogeneously distributed in both space and time, with variations reflecting tectonic setting, evolving environmental conditions, as in the ...
Cawood, Peter Anthony +1 more
core +2 more sources
, 2020 The North China Craton (NCC) hosts some of the world-class gold deposits that formed more than 2 billion years after the major orogenic cycles and cratonization. The diverse models for the genesis of these deposits remain equivocal, and mostly focused on
Cheng‐Xue Yang, M. Santosh
semanticscholar +1 more source