Geological features of the Huoshan quartzite jade ore deposit in Anhui Province and study of geophysical prospecting methods

Quartzite jade ore deposit in Huoshan city of Anhui province occurs as veins often in the silicified fractured zones in the contact zone between tonalitic gneiss of Dabie rock Group and Yanshanian monzonitic granite. Due to its small scale, poor ore continuality and complex topography of the study area, it is difficult to trace the veins of quartzite jade by electrical prospecting method. However, spatial distribution of the quartzite jade veins can be indirectly obtained through investigating the silicified fracture zones which host the ore bodies. Therefore, electrical prospecting methods can perform its biggest effect. By analyzing geological characteristic of the ore deposit, distribution pattern of ore bodies, electrical differences between quartzite jade veins and surrounding rocks, and geophysical testing result, it can be concluded that electronic prospecting technique is very practical in locating high resistance quartzite veins in the fracture zones with low electrical resistance.