四川省会理县小山山铜矿地质特征与找矿标志浅析

Geological characteristics and prospecting criteria of xiaoshanshan copper mine,Huili County,Sichuan Province

会理县小山山铜矿位于扬子地台西南缘之康滇地轴中南段东侧泸定-米易台拱之米易穹断束河口背斜北东翼。该矿床为沉积变质型矿床,主矿体均产于中元古界落雪组第一、二段的白云石大理岩中,顺层产出,具有层控特征,且受层间滑动带控制,显示该矿床受构造和岩性双重控矿的特征。本文从矿床地质特征及找矿标志方面展开分析,为本地区寻找同类型矿床提供借鉴。

Xiaoshanshan copper mine in Huili County is located in the northeast wing of the mouth Anticline of the Mi Yi dome fault bundle of Luding-Mi Yi platform arch in the middle and south section of the Kang Dian axis on the southwest margin of the Yangtze platform.The deposit is of sedimentary metamorphic type.The main ore bodies are all produced in dolomite marble of the first and second members of the Luoxue formation in the Middle Proterozoic,which is stratabound and controlled by interlayer slip zone.It shows that the deposit is controlled by both structure and lithology.In this paper,the geological characteristics and prospecting criteria of the deposit are analyzed to provide reference for the exploration of the same type of deposit in this area.