Results 161 to 170 of about 58,223 (220)

A rare Phanerozoic amphibolite-hosted gold deposit at Danba, Yangtze Craton, China: significance to fluid and metal sources for orogenic gold systems

Mineralium Deposita, 2018
The Danba gold deposit is located in a poorly-documented gold province on the north-western margin of the Yangtze Craton. It is sited in Devonian sequences in a high-grade metamorphic terrane that includes an extensional metamorphic core complex.
Qingfei Wang, Jun Deng, Hesen Zhao
exaly   +2 more sources

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Early Paleozoic Orogenic Gold Deposit in the Cathaysia Block, China: A first example from the Shuangqishan Deposit

, 2021
The Shuangqishan gold deposit (>20t gold) is located in a hitherto poorly-documented gold province in the southeastern Cathaysia Block, South China. It is hosted by Neoproterozoic amphibolite-facies metamorphic rocks and consists of quartz-sulfide veins ...
Yingiun Ma, Shaoyong Jiang, H. Frimmel, Suofei Xiong, Lüyun Zhu, Runsheng Chen   +5 more
semanticscholar   +1 more source

Anatomy of a world-class epizonal orogenic-gold system: A holistic thermochronological analysis of the Xincheng gold deposit, Jiaodong Peninsula, eastern China

Gondwana Research, 2019
Xincheng is a world-class orogenic-gold deposit hosted by the Early Cretaceous Guojialing granitoid in the Jiaodong Peninsula, eastern China. A zircon U–Pb age of 126 ± 1.4 Ma, together with previous data, constrain the emplacement of the Guojialing ...
Liqiang Yang, Liang Zhang, Roberto Weinberg   +2 more
exaly   +2 more sources

Phanerozoic Orogenic Lode Gold Deposits

2000
Abstract Phanerozoic lode gold deposits are invariably associated with convergent plate margins and occur within close proximity to major translithospheric structures or compressional to transpressional-transtensional shear zones. The deposits are almost entirely structurally controlled and the nature of the immediate host rock does ...
Frank P. Bierlein, Douglas E. Crowe
openaire   +1 more source

Fluid evolution and genesis of the Yidinan granitoid-hosted orogenic gold deposit (China)

Geological Society of America Bulletin
The metamorphic model explaining orogenic gold ore formation has become widely accepted. However, there has been extensive debate regarding whether a magmatic-hydrothermal system contributes fluids or metals in the source of orogenic gold deposits.
Jie Wang, Hao-Cheng Yu, Laura Petrella, D. Duo, Lei Wang, Fu Yang, Hao Zhou, Chao Li, K. Qiu   +8 more
semanticscholar   +1 more source

Geology of the Lapa Orogenic Gold Deposit

2017
Abstract The Cadillac mining camp is known for its numerous, but relatively small, orogenic gold deposits, which are spatially associated with the Larder Lake-Cadillac fault zone. The Lapa deposit, with a total endowment of 36 t Au (1.15 Moz), represents the largest gold deposit of the Cadillac mining camp.
Patrick Mercier-Langevin, Marjorie Simard, Richard Dubuc, Jocelyn Côté, Pierre Doucet, Réal Daigneault, Damien Gaboury   +6 more
openaire   +1 more source

Archean Orogenic Lode Gold Deposits

2000
Abstract Archean orogenic lode gold deposits are the result of large, complex mineralizing systems that have developed within many Archean terrains. Mineralizing systems are defined to include all geologic factors that control the generation and preservation of mineral deposits and emphasize the processes responsible for deposit ...
Steffen G. Hagemann, Kevin F. Cassidy
openaire   +1 more source

Concepts and revised models for Phanerozoic orogenic gold deposits

Geological Society, London, Special Publications, 2022
Abstract Existing published models for orogenic gold deposits (OGDs) do not adequately describe or explain most deposits of Phanerozoic age, and there are numerous reasons why Phanerozoic OGDs might differ significantly from older deposits.
J. K. Mortensen, D. Craw, D. J. MacKenzie   +2 more
openaire   +1 more source

Orogenic gold formation in an evolving, decompressing hydrothermal system: Genesis of the Samut gold deposit, Eastern Desert, Egypt

Ore Geology Reviews, 2019
Samut is a vein-type gold mineralization in the Eastern Desert of Egypt, which shares many geologic features with other orogenic deposits in this region.
B. Zoheir, M. Steele‐MacInnis, D. Garbe‐Schönberg   +2 more
semanticscholar   +1 more source

Metabasalts as sources of metals in orogenic gold deposits

Mineralium Deposita, 2014
Although metabasaltic rocks have been suggested to be important source rocks for orogenic gold deposits, the mobility of Au and related elements (As, Sb, Se, and Hg) from these rocks during alteration and metamorphism is poorly constrained. We investigate the effects of increasing metamorphic grade on the concentrations of Au and related elements in a ...
Pitcairn, Iain K., Craw, Dave, Teagle, Damon A.H.   +2 more
openaire   +2 more sources