德令哈市城市活断层探测中地球化学探测法的应用

APPLICATION OF THE GEOCHEMICAL EXPLORATION METHOD IN DELINGHA CITY ACTIVE FAULT DETECTION

通过地球化学探测法在活断层探测中的实际应用,总结了土壤气氡探测和气汞探测在青藏高原地区柴达木盆地内的探测效果,结果发现在德令哈市地区土壤气氡的探测效果较好,土壤气汞的探测效果不佳。经过数据的处理和对比分析,土壤气氡探测异常较精准地反映了隐伏断裂在地面延伸的位置,地球化学探测法作为辅助探测手段在活断层的探测工作中有一定的应用价值。

By the geochemical exploration method in the practical application in the detection of active fault, the air radon and mercury in soil detection are summarized in the Chaidamu basin in Qinghai-Tibet plateau re- gion,the results found that the air radon in soil detecting effect is better in Delingha region, the effect of air mercury gas detection is not better. After data processing and analysis, air radon in soil detecting anomalies are accurately reflected the buried fault location in the ground extension, geochemical detection method as an auxil- iary detection means in the work of active fault detection has certain application value.