青海道帏地区1∶5万水系沉积物测量研究

A Study on Measurement of 1∶5000 Stream Sediment in Daowei District of Qinghai

通过开展青海道帏区域810 km21∶5万水系沉积物测量工作,揭示本区域相关元素地球化学特征,研究显示:工作区水系沉积物中相对于地壳丰度元素含量偏高的元素有As、Sb、Bi、Pb、Sn、W等,同时Au、Ag、Hg、Sb、As、Bi、Pb等元素具备强分异能力,W、Mo具备一定分异能力。研究区内存在26个地球化学异常,其中乙2类异常存在6处。根据其地球化学特征,对其异常进行解释推断。从地球化学角度优选出相关矿产的找矿靶区,服务于后续地质矿产调查评价工作。

Through a stream sediment survey of 810 square kilometers 1 ∶ 5 000,we have known it reveals the regional element geochemical characteristics. The research shows that the working area sediments will be relative to crustal abundance elements of high content of the contents of As,Sb,Bi,Pb,Sn,W. We think Au,Ag,Hg,Sb,As,Bi,Pb and other elements have strong differentiation ability. W and Mo have a certain differentiation ability. There are 26 geochemical anomalies in the study area. Of which there are 6 kinds of 2 kinds of Yichang.The geochemical anomalies are interpreted and inferred according to their geochemical characteristics. The prospecting target areas of related minerals are optimized from the geochemical perspective,which serves the subsequent work of geological mineral investigation and evaluation.