Results 11 to 20 of about 58,223 (220)
Mineralium Deposita, 2023 AbstractAttempts to geochemically distinguish between metamorphic-hydrothermal systems that form orogenic gold deposits and both reduced and oxidized magmatic-hydrothermal systems using isotopes or metal associations have proven ambiguous, particularly for orogenic gold and reduced intrusion-related gold systems.
Ryan D. Taylor +2 more
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Ore Geology Reviews, 2021 Abstract Orogenic gold deposits are one of the most important gold deposits in the world. However, it is controversial that orogenic gold deposits are only generated at subduction-accretion or both in collisional setting. The Altai Orogen experienced a complex subduction accretion–collision history, including magmatism and metamorphism, and forming ...
Abulimiti Aibai +9 more
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Economic Geology, 2023 Abstract The Jiangnan orogen, one of the largest gold-producing areas in China, has experienced multiple orogenic events with complex structural overprinting that is marked by multiple stages of magmatism, deformation, metamorphism, and orogenic gold mineralization.
Cheng Wang +8 more
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On the origin of the Fäboliden orogenic gold deposit, northern Sweden
Mineralium Deposita, 2008 Godkänd; 2008; 20081128 (ysko)
Glenn Bark +3 more
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GSA Bulletin, 2023 Orogenic gold deposits are currently the world’s major source of Au, but uncertainty exists in the timing of mineralization relative to the ages of host rocks, metamorphism, and magmatism.
Yingiun Ma, Shaoyong Jiang, H. Frimmel
semanticscholar +1 more source
Gold Deposits in the Sanandaj–Sirjan Zone: Orogenic Gold Deposits or Intrusion‐Related Gold Systems? [PDF]
Resource Geology, 2012 AbstractMost of the known large gold deposits in Iran are located along the Sanandaj–Sirjan Zone, western Iran, which hosts a wide range of gold deposit types. Gold deposits in the belt, hosted in upper Paleozoic to upper Mesozoic volcano‐sedimentary sequences of lower greenschist to lower amphibolite metamorphic grade, appear to represent mainly ...
Farhang ALIYARI +2 more
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地质科技通报, 2021 Chelugoubei Gold Deposit in Yumen City, Gansu Province is located at the intersection of the western North Qilian Orogenic Belts and eastern Altyn Tagh Sinistral strike-slip fault shearing zones, which is a famous "golden triangle" in Northwest China ...
Yanliang Liu, Ya Gao, Jindong Wei
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Руды и металлы, 2023 The Kumtor deposit is one of the largest gold deposits in the Tien Shan. The ore zones are localized in rocks of the black shale formation, in an amagmatic gently dipping structure.
Shevkunov A. G. +3 more
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Frontiers in Earth Science, 2021 The Jinba gold deposit is located in the Maerkakuli Shear Zone of the south Altay Orogenic Belt, NW China. Mineralization types are classified as altered rock–and quartz vein–type.
Shun-Da Li +5 more
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Chemical composition of tourmaline in orogenic gold deposits [PDF]
Mineralium Deposita, 2020 Tourmaline from 18 orogenic gold deposits and districts, hosted in varied country rocks and metamorphic facies, was investigated by EPMA (electron probe micro-analyzer) and LA-ICP-MS (laser ablation-inductively coupled plasma-mass spectrometry) to establish discriminant geochemical features to constrain indicator mineral surveys for gold exploration ...
Marjorie Sciuba +2 more
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