青海拉脊山东段水系沉积物地球化学异常特征

THE CHARACTERISTICS OF GEOCHEMICAL ANOMALY OF STREAM SEDIMENT IN EASTERN LAJI MONTAINS,QINGHAI PROVINCE

青海拉脊山东段水系沉积物地球化学测量,发现金源、喇嘛庙、七里寺峡Au、As、Ag、Bi、Sb、Hg等元素的水系沉积物组合异常.Au、Ag、As相对高浓度带发育形态、分布范围、异常浓集中心吻合,与区内已知尼旦沟金矿床地球化学异常特征可以类比,发现有金、铜矿体和金矿化,显示铜金成矿的有望远景地段.

Based on the geochemical survey of stream sediment in eastern Laji Mountains,Qinghai province,the composite anomalies of stream sediment of the elements such as Au, As,Ag,Bi ,Sb,Hg,etc are discovered in Jinyuan, Lamamiao and Qixingsixia. In where the developed shape,distribution and anomalous concentration center of the elements such as Au, Ag,As relatively high concentration zone are proximately coincident,the Au,Cu orebodies and Au mineralization area are discovered. The characteristics of geochemical anomaly of the areas are similar to those of Nidangou Au ore deposits discovered in this region,and the prospective areas of the copper ,gold mineralization are revealed.