新疆戛勒赛地区地球化学特征及指示意义

Geochemical characteristics and its indicative signification in Gelesai field,Xinjiang

对戛勒赛地区1∶5万水系沉积物测量及原岩元素含量测试数据的统计分析,共圈定综合异常9处。异常主要分布于二长花岗岩与下元古界金水口群地层接触带及金水口群内,矿体多产于二长花岗岩、二云石英片岩及透闪大理岩中。综合异常区内W、Sn元素间套和好,且浓集中心一致,浓度分带明显。区内具备寻找隐伏-半隐伏中高温热液金属矿产的条件,是寻找钨锡矿产的较佳区域。

Through the measuring of 1：50 000 stream sediments and statistical analysis of element content in original rocks, 9 synthetical abnormal places have been delineated. The abnormal places distribute mainly in Jinshuikou Group and in the contact zones of adamellite and Jinshuikou Group of Lower Proterozoie. The ore bodies distribute in the adamellite, two-mica-quartz schist and tremolite marble chiefly. W and Sn fits well each other, the concentration centre is consistent and the concentration zoning is obviously in the synthetical abnormal places, so this region has the conditions to find hidden and semi-hidden hydrothermal metal minerals with medium-high temperature, which is the relative best position to looking for tin-tungsten ores.