GEOPHYSICAL PROSPECTING EFFECT IN THE GRAPHITE-BEARING STRATA IN EASTERN LIAONING: A Case Study of the Diaoyutai Gold-Silver Deposit
LI Shu-jun1, SUN Gang2, ZHANG Guo1, WANG Sheng-zhi1, XU Hao1
1. Liaoning Institute of Geology for Chemical Industry, Jinzhou 121000, Liaoning Province, China; 2. Liaoning Institute of Mineral Exploration, Shenyang 110032, China
Abstract：Due to the graphite contained in the Gaojiayu Formation in Eastern Liaoning area, the anomaly value of high polarizability is often higher than that of ore-induced anomalies, while that of low resistance is commonly lower. That seriously affects the prospecting results of geophysical methods. In this paper, the exploration in Diaoyutai Au-Ag deposit is analyzed as an example. On the basis of the stratigraphic and lithologic structure, metallogenic geological conditions and ore-controlling and ore-host structures, the electrical properties of rocks and ores are measured. With IP intermediate gradient and AMT combined method, the abnormal response model is established for the graphite-bearing strata, by which the ore-induced anomalies are correctly identified and classified. The verification drilling shows a good result.
李树军, 孙钢, 张国, 王生志, 徐昊. 辽东地区含石墨地层条件下的物探找矿效果——以钓鱼台金银矿为例[J]. 地质与资源, 2017, 26(3): 310-316.
LI Shu-jun, SUN Gang, ZHANG Guo, WANG Sheng-zhi, XU Hao. GEOPHYSICAL PROSPECTING EFFECT IN THE GRAPHITE-BEARING STRATA IN EASTERN LIAONING: A Case Study of the Diaoyutai Gold-Silver Deposit. GEOLOGY AND RESOURCES, 2017, 26(3): 310-316.
2017, Vol. 26 
辽公网安备 21010502000112号