东昆仑布青山地区水系沉积物测量地球化学特征及找矿方向

GEOCHEMICAL CHARACTERISTICS AND ORE SEARCH PROSPECTS OF BUQINGSHAN AREA IN QINGHAI PROVINCE BASED ON STREAM SEDIMENT SURVEY

在1∶5万水系沉积物测量的基础上,对青海东昆仑布青山地区的地球化学特征进行了初步分析。对元素分布特征、单元素异常特征、元素相关性分析、异常元素组合特征进行了研究,发现Au、Cu、Co、Ni、Sb为区内具有一定潜力的找矿指标。推断区内的成矿类型为与花岗岩、花岗斑岩有关的斑岩型铜金多金属矿和与基性—超基性岩有关的钴镍多金属矿,划分出马尼特金铜找矿远景区、得力斯坦铜钴镍找矿远景区和哥日卓多金铜找矿远景区。

The preliminary study of the geochemical features in Buqingshan area of East Kunlun in Qinghai Province was based on the 1： 50000 stream sediment survey. The study included element distribution characteristics, element anomalies, element correlation and element anomaly assemblage. The result shows that the study area might be a prospective area for Au, Cu, Co, Ni and Sb. It is inferred that ore deposits in Buqingshan area are probably porphyry Cu-Au polymetallic deposits related to granite and granite porphyry, whereas Co-Ni polymetallic deposits are related to the basic and ultrabasic rocks. The Mnite area is expected to be a prospective area for porphyry Cu-Au polymetallic deposits, the Delisitan area is likely to have Co-Ni polymetallic deposits associated with basic and ultrabasic rocks, and the Gerizhuoduo area is expected to be a prospective area for porphyry Cu-Au polymetallic deposits.