四川乡城108沟铜矿地质特征与矿床成因初析  

Geological Features and Genesis for the Valley 108 Cu Deposit in Xiangcheng,Sichuan

作　　者：何永建[1] 曾祥贵[1] 梁鹏飞[1] 曾毅夫[2] 

机构地区：[1]四川省地质矿产勘查开发局物探队,成都610072 [2]成都理工大学地球科学学院,成都610059

出　　处：《四川地质学报》2012年第4期449-451,共3页Acta Geologica Sichuan

摘　　要：108沟铜矿位于西南三江有色、贵金属成矿带中段乡城茶拥当卓—稻城铅锌银铜区成矿带北部。铜矿体呈脉状赋存于马熊沟—次林措复式花岗岩带旁侧的三叠系上统拉纳山组变质砂板岩中,受断层破碎带、层间破碎带控制。矿化以热液充填为主,围岩蚀变主要有硅化,次为绢云母化、绿泥石化、碳酸盐化和黄铁矿化,富集程度与硅化成正比。矿床成因属与花岗岩有关的中低温热液型铜矿。The Valley 108 Cu deposit in Xiangcheng, Sichuan lies in the north of Chayongdangzhuo- Daocheng Pb-Zn-Ag-Cu ore zone in the middle sector of the Sanjiang metallogenic belt. Cu orebodies occur as lodes in metamorphosed sandy slate of the Upper Triassic Lanashan Formation close by the Maxionggou- Cilincuo granite intrusion and are controlled by fault and interlayer fractural zone with wallrock alteration silisification, sericitization, chloritization, carbonation and pyritization. Hydrothermal filling mineralization has a direct relationship to silisification. The deposit belongs to mesothermal and epithermal one.

关 键 词：铜矿 地质特征 矿床成因 乡城108沟 

分 类 号：P618.41[天文地球—矿床学]