1. Nanjing Center, China Geological Survey, Nanjing 210016, China; 2.Huoshan County Gold Mine Co., Ltd., Lu'an 237200, China; 3. Geological Exploration Technology Institute of Jiangsu Province, Nanjing 210008, China
Abstract：The Dongxi gold deposit is the first primary gold deposit discovered in the eastern part of northern Huaiyang tectonic belt, and it is also the first gold deposit for industrial mining. There exists controversy concerning the problem whether the induced polarization measurement could be an effective method or not under the condition of the lack of sulfides in the ore. According to the analysis of apparent resistivity and apparent polarizability measurement, the authors found that the commonly used geophysical exploration technique is effective for the replacement resources exploration in the Dongxi gold deposit with low sulfide content. The apparent resistivity anomaly indicates the auriferous quartz (carbonate) veins, and the apparent polarization anomaly might indicate dikes and fault structures related to the mineralization. The induced polarization measurement provides strong evidence for exploration of ore-controlling structure and drilling engineering implementation.
