青海油葫芦-马粪沟地区金及多金属成矿规律与找矿潜力分析

Study on Gold and Polymetallic Oregenic Regularities and Prospecting Potential in Youhulu and Mafengou Area in Qinghai province

研究区位于托莱山金铜多金属成矿带中段,火山岩地层、断裂构造、侵入岩构成了主要的成矿地质条件。目前,区内共发现金矿化体10条,金铜矿体1条,金锑矿体1条,铜矿体1条,主要赋存于玄武岩、辉长岩、构造角砾岩及石英脉体中,矿床成因类型为中低温热液裂隙充填型。地球化学异常、下奥陶统阴沟群玄武岩、构造破碎蚀变带和典型的矿化蚀变是良好的找矿标志,区域水系沉积物异常和大比例尺土壤异常具有良好的找矿前景。

The study area is located in the middle of Tuolaishan gold and copper polymetallic metallogenic belt in.Volcanic rock strata,fault,intrusive rocks are the important ore-controlling factor.At present,the district has found the gold mineralization body 10,gold copper body 1,article 1gold antimony ore body,the copper body 1.They mainly occurs in the basalt,gabbro,tectonic breccia and quartz veins in the body,fissure filling type of deposit genetic type for low temperature liquid.They are good ore-prospecting criteria,for example Geochemical anomaly and basalt of lower ordovician Yingou group,tectonic broken alteration zone and typical mineralization alteration is.There are better prospecting potential for Regional stream sediment anomalies and large scale soil.