| 甘肃小西弓金矿地质地球化学特征及成因探讨 |
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| 引用本文： | 李奋其,王成善.甘肃小西弓金矿地质地球化学特征及成因探讨[J].矿物岩石,2003,23(1):65-69. |
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| 作者姓名： | 李奋其 王成善 |
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| 作者单位： | 成都理工大学地球科学学院,四川,成都,610059 |
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| 摘 要： | 小西弓金矿产于敦煌岩群的低绿片岩相变质岩层中，受NWW向脆韧性剪切带控制。二云母征岩不仅是矿源层，而且还是赋矿围岩。成矿流体主要是印支期岩浆期后含金热液，还包括少量变质水和大气降水，淋滤韧性剪切带内岩石中的Au元素并在有利的部位成矿。
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| 关 键 词： | 小西弓 脆韧性剪切带 金矿 |
| 文章编号： | 1001-6872(2003)01-0065-05 |
| 修稿时间： | 2002年8月5日 |
GEOLOGICAL-GEOCHEMICAL FERATURES AND GENESIS OF XIAOXIGONG GOLD DEPOSIT IN GANSU |
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| LI Fen qi,WANG Cheng shan.GEOLOGICAL-GEOCHEMICAL FERATURES AND GENESIS OF XIAOXIGONG GOLD DEPOSIT IN GANSU[J].Journal of Mineralogy and Petrology,2003,23(1):65-69. |
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| Authors: | LI Fen qi WANG Cheng shan |
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| Abstract: | The formation and evolution of Xiaoxigong gold deposit was associated closely with regional geological development.It was produced in the low green schist facies metamorphic rocks of Donghuang Group,and controlled by brittle ductile shear zones.Two mica schists are considered to be the source bed and host rock of gold.The Au bearing fluid was originated from postmagmatic hydrothermal solution of Indo Chinese epoch which included some metamorphogenetic water.It leached Au from the rocks in the brittle ductile shear zone and mineralized at favourable place. |
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| Keywords: | Xiaosigong brittle ductile shear zone gold deposit |
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