宁夏海原县西华山柳沟—簸箕掌地区地球化学特征分析及成矿远景研究

Geochemical Characteristics Analysis and Metallogenic Prospect Study of Xihuashan Liugou-Bojizhang Area, Haiyuan County, Ningxia

通过开展宁夏海原县柳沟—簸箕掌地区1∶50000水系沉积物测量工作,获取了大量地球化学数据,对数据进行马氏距离处理,做综合地球化学图,排除了以往由于地层高背景单一因素引起的异常,最终圈定了HS-3、HS-1两处面积相对较大、成矿条件有利的综合异常。通过对两处综合异常进行详细剖析并结合异常查证结果,分析评价了柳沟—簸箕掌地区的成矿潜力,并确定金、铜成矿有利地层。

A large number of geochemical data has been obtained by performing on 1/50000 stream sediments of Liugou-Bojizhang area in Ninxia Haiyuan.Here analysis data are processed by mahalanobis distance and a comprehensive geochemical map is made to eliminate the anomalies caused by the single factor of high background,and finally synthetic anomalies of HS-1 and HS-3 are restricted to relatively large areas which have favorable metallogenic conditions.Based on the detailed analysis of two synthetic anomalies and abnormal verification,the metallogenic potential and favorable metallogenic strata of gold and copper are analyzed and evaluated in Liugou-Bojizhang area.