甘肃省山丹县黑水沟地区地球化学特征

Geochemical Characteristics of the North Heishuigou in Shandan of Gansu Province

山丹县黑水沟地区以往水系沉积物测量时发现了较好的Au矿化线索,本次拟通过1∶25000沟系次生晕测量进一步缩小找矿靶区。对全区获得1161件样品测试结果进行统计分析,发现Au、Co、Ni元素在此地区地球化学特征有利于其富集成矿。经过后期地表槽探和深部钻孔验证,在本次获得的综合异常HT03(甲_(2)类)和HT04(甲_(2)类)中发现了两条金矿化体和一条钴矿化体,有效的指导了下一步找矿工作。

Good clues of Au mineralization have been found in the previous stream sediment survey in Heishuigou area.The 1∶25000 channel system secondary halo survey is proposed to further reduce the prospecting target area.Based on the statistical analysis of 1161 samples,it is found that the geochemical characteristics of Au,Co and Ni in this area are conducive to their enrichment and mineralization.Through the later surface trenching and deep drilling verification,two gold mineralized bodies and one Co mineralized body were found in the comprehensive anomalies HT03(class A2)and HT04(class A2),which effectively guided the next prospecting work.