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Characteristics of geophysical and geochemical anomalies and prospecting criteria of the Beiling ore district,Guangdong Province |
SUN Ning1,2,3, LUO Wei2,3, WEI Long-Ming1, KONG Fan-Qian1, MIAO Yuan-Xing2,3, TANG Pan-Ke2,3 |
1. College of Earth Science, Guilin University of Technology, Guilin 541006, China;
2. South Geological Investigation Institute of China Non-ferrous Metals Resource Geological Survey, Changsha 410001, China;
3. China Non-ferrous Metals Resource Exploration Co., Ltd., Changsha 410001, China |
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Abstract The preliminary study of the geophysical and geochemical characteristics of the Beiling ore district was based on the working results of 1:10 000 geophysical and geochemical anomaly survey. Factor analysis shows that the ore district is dominated by metallogenic elements Pb, Zn, with the ore-forming element combination of Ag, Pb, Zn, Bi and the superimposition of W, Mo, Cu and other elements. An analysis of the 1:10 000 IP data of ore-bearing rocks shows low resistivity and high polarization rate. Through the geophysical and geochemical anomaly analysis in combination with the geological characteristics, the authors hold that II, III anomalies are the most favorable metallogenic physicochemical positions. 6 IP sounding profiles were deployed to carry out the anomaly verification work, and then two drill holes were arranged in the favorable ore-forming places chosen from the Ⅲ anomaly area, which led to the discovery of lead-zinc mineralized body. According to the geophysical and geochemical anomaly characteristics and metallogenic geological conditions, combined with the validation results of drilling engineering, this paper summarizes the prospecting criteria, and points out that the II anomaly belt should be the next place for engineering validation.
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Received: 21 July 2014
Published: 10 August 2015
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