The application of geo-electrochemical methods to prospecting in the loess-covered Xiaoshan Mountain, western Henan Province: A case study of the Shilongshan gold polymetallic ore prospecting area in Luoning County
Xiaoshan Mountain widely covered by the Quaternary sediments is located in the west of Henan Province. Its north part is ravines crossbar, and the surface vegetation grows fully and covers the surface heavily. In order to investigate the effectiveness of the earth electrochemical method in the search for gold deposits in the Xiaoshan loess-covered area in western Henan, the authors selected Shizhaigou gold deposit which is buried in loess to carry out the feasibility test of ore prospecting, and conduct geo-electrochemical prospecting in the south of the Shillongshan gold polymetallic mineral survey area and its adjacent area of Xiaoshan. The study revealed that the electrochemical composite anomaly in the development area of the Au deposit in Shizhaigou is obvious , the elements are well correlated and they have good nesting and zoning relationships. The authors analyzed the trace element content characteristics (fractal, coefficient of variation and extraction ratio of the geoelectric extraction) extracted from the geoelectricity of Shilongshan census area and found that it has similar geoelectricity anomaly patterns to the Shizhaigou gold deposit. In addition, the authors used Surfer software to draw the contour abnormal map and, in combination with previous research results, initially verified the surface of well-arranged 45-47 surveying points along No.02 line through surface engineering, thus determining an industrial gold orebody with good reserves. It is thus proved that the measured and inferred faults F1-1 and F20 do exist. The results provide a theoretical basis for electrochemical prospecting in the search for deep deposits in the Shilongshan area and the periphery of the Shizhaigou deposit, and also provide new ideas for the prospecting work in the loess-covered loess area.
杨笑笑, 罗先熔, 文美兰, 欧阳菲, 吕星海, 尹高科, 郑广明. 地电化学法在豫西崤山黄土覆盖区找矿中的应用——以洛宁县石龙山预查区为例[J]. 物探与化探, 2019, 43(2): 244-256.
Xiao-Xiao YANG, Xian-Rong LUO, Mei-Lan WEN, Fei OU-Yang, Xing-Hai LYu, Gao-Ke YIN, Guang-Ming ZHENG. The application of geo-electrochemical methods to prospecting in the loess-covered Xiaoshan Mountain, western Henan Province: A case study of the Shilongshan gold polymetallic ore prospecting area in Luoning County. Geophysical and Geochemical Exploration, 2019, 43(2): 244-256.
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