四川省理塘县亚火地区铜银矿床地质特征及成因研究

The Study on the Geological Characteristics and the Causes of Yahuo Copper and Silver Deposit,Litang County,Sichuan Province

通过对该矿床的地质特征研究,矿区构造线为南北向,由亚火-卓西断裂和轴向为南北的线状紧闭褶皱麻通寺背斜为主体,理塘县亚火铜银矿床的含矿层位为古近系第一岩性段,发现矿体两条,矿化体呈层状、似层状、透镜体状产出。次生矿物成分主要为孔雀石、蓝铜银矿;原生铜主要有少量黝铜银矿、辉铜银矿等。同时对该矿区的矿床成因进行了分析,认为该矿床属于陆河-湖泊沉积型铜银矿床,并归纳总结出三条找矿标志。

The mining area construction line is north and south. The main bodies are the fire - ZhuoXi fracture and axial for north-south linear tight fold ma tong temple broken anticline. The position of ore-bearing bed of copper and silver deposit is the first lithologic section in Litang County. Through the study on the geological characteristics of the deposi4 there are two ore bodies. The mineralization body is layered, layered and lens. The mineral composition are mainly secondary mineral malachite and azurite and silver. The native coppers are mainly a small amount of copper and silver, and copper and silver, etc. At the same time, the analysis of the genesis of the area has been done. It can be seen that the deposit belongs to the type of mainlands and river-lake sedimentary copDer and silver deposit, and there prospecting indicators have been summarized.