广东连平溪山铅锌多金属矿土壤地球化学测量与找矿效果评价

Soil Geochemical Survey and Prospecting Effect Evaluation of Xishan Lead-zinc Polymetallic Deposit in Lianping, Guangdong Province

研究区位于赣闽隆起区和粤桂湘赣褶皱带交界处,属南岭W-Sn-Mo-Be-Ree-Pb-ZnAu-U成矿带之始兴-连平W-Sn-Pb-Zn成矿亚带。以往通过开展1:20万区域地质调查及金属量测量圈定了23号铅金属量扩散晕,连平县大顶远景区1:5万水系沉积物测量发现了金银异常及铅锌多金属异常。在以往成果基础上开展1:10000土壤地球化学测量圈出AP1、AP2两个综合异常,通过工程验证圈定了3个铅锌、铁、银多金属矿(化)体,均与异常相吻合,V1与AP1综合异常吻合较好,目前看来找矿效果较好。

The study area is located at the junction of the Jiang-Fujian uplift area and the Guangdong-Guangxi Hunan-Jiangxi fold belt, which belongs to the Shixing-Lianping W-Sn-Pb-Zn metallogenic sub-belt of the Nanling W-Sn-Mo-Be-Ree-Pb-Zn-Au-U metallogenic belt. In the past, No.23 lead metal quantity diffusion halo was delineated by carrying out 1:200,000 regional geological survey and metal quantity measurement. Gold and silver anomalies and lead and zinc polymetallic anomalies were found by 1:50000 stream sediment survey in Dading Prospect Area of Lianping County. Based on the previous results, the 1:10000 soil geochemical survey was carried out to ring AP1 and AP2 comprehensive anomalies, and three lead-zinc, iron and silver polymetallic ore bodies were delineated through engineering verification, which were consistent with the anomalies. The comprehensive anomalies of V1 and AP1 are in good agreement. It seems that the ore prospecting effect is good at present.