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Introduction: Macraes Mine as an Orogenic Gold Deposit
2016Orogenic gold deposits are typically dominated by quartz veins in faults. Historic mining at Macraes focused on scattered small quartz veins, with only minor Au production. Modern exploration and mining has developed from these small beginnings into a world class mine operation which has produced >4 million ounces of Au from a total resource exceeding ...
Dave Craw, Doug MacKenzie
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, 2020
Ge’erke (>100 t gold) is one of six Mesozoic gold deposits within the Dashui-Zhongqu District, that collectively have a non-JORC resource of about 150 tonnes gold out of a total of >1100 tonnes gold for the host West Qinling Belt.
Nan Li +9 more
semanticscholar +1 more source
Ge’erke (>100 t gold) is one of six Mesozoic gold deposits within the Dashui-Zhongqu District, that collectively have a non-JORC resource of about 150 tonnes gold out of a total of >1100 tonnes gold for the host West Qinling Belt.
Nan Li +9 more
semanticscholar +1 more source
, 2020
The Karouni deposit is located in central Guyana 35 km to the W of the former producing 5 Moz Omai mine and is interpreted to be an orogenic gold deposit. It is hosted in Rhyacian aged (2.2 to 2.1 Ga) volcano-sedimentary and intrusive rocks metamorphosed
M. Tedeschi +4 more
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The Karouni deposit is located in central Guyana 35 km to the W of the former producing 5 Moz Omai mine and is interpreted to be an orogenic gold deposit. It is hosted in Rhyacian aged (2.2 to 2.1 Ga) volcano-sedimentary and intrusive rocks metamorphosed
M. Tedeschi +4 more
semanticscholar +1 more source
, 2020
Since the crustal continuum model was proposed mainly based on the variation of mineralization and alteration features of hypozonal, mesozonal, to epizonal deposits, genetic relationship between the different types in one ore belt still requires research.
Panfei Sun +4 more
semanticscholar +1 more source
Since the crustal continuum model was proposed mainly based on the variation of mineralization and alteration features of hypozonal, mesozonal, to epizonal deposits, genetic relationship between the different types in one ore belt still requires research.
Panfei Sun +4 more
semanticscholar +1 more source
Ore Geology Reviews, 2020
Shangxu is an orogenic gold deposit within the Bangong-Nujiang suture zone, central Tibet, China. It is hosted by turbidite sedimentary rocks of the Jurassic Mugagangri Group.
X. Fang +4 more
semanticscholar +1 more source
Shangxu is an orogenic gold deposit within the Bangong-Nujiang suture zone, central Tibet, China. It is hosted by turbidite sedimentary rocks of the Jurassic Mugagangri Group.
X. Fang +4 more
semanticscholar +1 more source
, 2020
The Grass Valley orogenic gold district in the Sierra Nevada foothills province, central California, is the largest historical gold producer of the North American Cordillera.
Ryan D. Taylor +3 more
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The Grass Valley orogenic gold district in the Sierra Nevada foothills province, central California, is the largest historical gold producer of the North American Cordillera.
Ryan D. Taylor +3 more
semanticscholar +1 more source
Chapter 8 Orogenic Gold Deposits of China
2019Abstract China produces about 450 t Au per year and has government stated in-ground reserves of approximately 12,000 t Au. Orogenic gold, or gold deposits in metamorphic rocks, and associated placer deposits compose about 65 to 75% of this endowment, with lodes existing as structurally hosted vein and/or disseminated orebodies.
Richard Goldfarb +4 more
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Chapter 38: Hydrothermal Gold Deposition in Epithermal, Carlin, and Orogenic Deposits
2020Abstract Epithermal, Carlin, and orogenic Au deposits form in diverse geologic settings and over a wide range of depths, where Au precipitates from hydrothermal fluids in response to various physical and chemical processes. The compositions of Au-bearing sulfidic hydrothermal solutions across all three deposit types, however, are broadly
Stuart F. Simmons +4 more
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Ore Geology Reviews, 2019
The Shanggong lode deposit represents one of the largest Mesozoic orogenic gold deposits in the East Qinling metallogenic belt of central China. Here we investigate the texture, trace element and sulfur isotopic composition of pyrite from this deposit to
Li Tang +7 more
semanticscholar +1 more source
The Shanggong lode deposit represents one of the largest Mesozoic orogenic gold deposits in the East Qinling metallogenic belt of central China. Here we investigate the texture, trace element and sulfur isotopic composition of pyrite from this deposit to
Li Tang +7 more
semanticscholar +1 more source