地球化学测量方法在柴北缘青山地区多金属矿找矿中的应用

青山多金属矿位于青海省柴达木盆地北缘地区,赛什腾山中段南坡,大柴旦镇北西,属柴达木地层区中的柴达木北缘地层分区。1/20万地球化学测量在该区圈定AS甲1^40 CuAu综合异常一处,通过对该综合异常作1/5万水系沉积物加密测量,确定HS31异常,进一步浓缩了找矿靶区。对该异常采用土壤测量控制异常浓集中心部位,圈定了AP1~AP5元素组合异常带,异常强度高,分带明显,Au、Pb、Zn峰值高。通过对土壤异常带作工程验证发现矿体14条。青山多金属矿的发现表明:地球化学勘查在本区寻找多金属矿是行之有效的,为在柴北缘地区寻找多金属矿产提供参考。

An Application of Geochemical Measurement Method in Prospecting of Polymetallic Deposits in Qingshan Area,North Qaidam Basin

The Qingshan polymetallic mine is located in the northern margin of Qaidam Basin in Qinghai Province.It is on the southern slope of the middle section of Sai Seng Mountain and northwest of Dachaidan Town.It belongs to the northern margin of the Qaidam in Qaidam Formation.1/200,000 geochemical measurements is delineated in the AS甲1^40 CuAu comprehensive anomaly of this area.The HS31 anomaly was determined by encrypting the integrated anomaly with 1/50,000 water system sediments.It is further enriching the prospecting target area.The soil measurement was used to control the abnormal concentration center of the anomaly.The AP1~AP5 element combination anomaly zone was delineated.The abnormal intensity was high,the zoning was obvious.And the peaks of Au,Pb and Zn were high.14 ore bodies were found through engineering verification of soil anomalies.The discovery of the Qingshan polymetallic deposit indicates that geochemical exploration is effective in finding polymetallic ore in this area,which provides a reference for the search for polymetallic minerals in the northern margin of the Qaidam area.