Economic and Environmental Geology (자원환경지질)
- Volume 31 Issue 2
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- Pages.89-99
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- 1998
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
Compositional Variations of Arsenopyrite from Gold-Silver Deposits in Korea
한국 금은광산에서 산출되는 유비철석의 조성변화
- Choi, Seon-Gyu (Department of Earth and Environmental Sciences, Korea University) ;
- Choi, In-Sik (Center for Mineral Resources Research, Korea University)
- Received : 1998.02.16
- Published : 1998.04.30
Abstract
The gold-silver mineralizations in Korea are closely related to Jurassic Daebo igneous activity (121 and 183 Ma) and Cretaceous Bulgugsa igneous activity (60 and 110 Ma). A compilation and re-evaluation of chemical data in arsenopyrite suggest that the As contents vary, reflecting different genetic environments or mineral assemblages. The gold-silver vein deposits from various mineralized area were investigated using arsenopyrite geothermometer. Arsenopyrites from the Jurassic Au-dominant deposits are distinct by high As contents (29.68~33.46 atomic %) with narrow variations, equivalent to a temperature range of
한국의 금은광화작용은 쥬라기 대보화성활동 (121~183 Ma) 및 백악기 불국사화성활동 (60~110 Ma)과 밀접한 연관성을 보이며, 이러한 열수광맥형 금은 광산에서 산출된 유비철석은 광물공생관계 또는 생성환경에 따라 현저한 조성 변화를 나타내고 있다. 쥬라기 금광단일형 광상에서 산출된 유비철석은 비교적 높은 As함량 (29.68~33.46 atomic %)으로 균질한 조성을 나타내며, 유비철석 지질온도계에 적용하면 생성온도 및 유황분압은
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