GEOLOGY AND GENESIS OF SHEWUSHAN CARLIN TYDE OF GOLD DEPOSIT IN HUBEI PROVINCE
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摘要: 蛇屋山金矿产于以寒武-奥陶系碳酸盐岩为主体的倒转背斜及双重逆冲构造中;矿床属低温热液成因(原生金矿);浅部矿体,即缓倾斜断层构造岩中的原生金矿,经历了第三纪以来近亿年的风化淋滤改造,成为可露采、易堆浸的风化金矿床;矿石品位低,金呈微细粒浸染状。与美国卡林型金矿类比,该矿属卡林型金矿。蛇屋山卡林型金矿分为原生金矿和风化金矿两个亚类。Abstract: Shewushan gold deposit occured in overtured anticline and double thrust tectonic which were mainly composed of Cambrian-Ordovician Carbonatite, and belong to epithermal ore deposit (primary gold deposit).The Shallow orebody, that is primary gold deposit occured in gently dipping fault tectonite underwent near a hundred million years' weathering-Leaching transformation, and became strippable weathering gold deposit.Ore grade is low. Gold appeared in micro-fine grained impregnation state. Compared with Carlin type gold deposit, Shewushan goid deposit belong to Carlin type and can be divided into two subtypes:primary and weathering gold deposit.
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Key words:
- Shewushan /
- Carlin type /
- primary gold deposit /
- weathering gold deposit
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