Building a Prediction Model for Resource Potential Forecast of Principal Gold Deposits in West Qinling Mountains of Gansu Province

In order to meet the requirements of exploration, development and strategic deployment of gold deposits in West Qinling Mountains of Gansu Province under the current situation,from a dynamic analysis of gold deposit potential in Gansu Province, a prediction model for resource potential forecast is introduced to meet the requirements of exploration, development and strategic deployment of gold deposits under the current trend. Characteristics, relevant suggestions on geological exploration and deployment of gold deposits are also preliminarily put forward.There are 223 rock gold deposits in West Qinling Mountains, and Yanshanian is the main ore-forming period, mainly distributed in Longnan,Tianshui and Gannan areas in southern Gansu Province. The deposit types are mainly magmatic hydrothermal type and epithermal medium-low temperature hydrothermal type. Based on this, the prediction model of Liba, Daqiao and Yangshan typical deposits is modified. Four typical ore deposit prediction models have been established, including Zaozigou, Jiagantan, Zhaishang and Xiaodong. By using the comprehensive geological information prediction method of deposit model and MRAS software, 179 prediction areas were delineated, and the predicted gold amount of 3512.107 tons was estimated by volume method. Compared with the evaluation result of mineral resource potential in Gansu Province (2013), the number of predicted mineral resources increased by 18, and the predicted amount increased by 461.03 tons. The newly added mineral resources were mainly distributed in the key prospecting areas such as Yidinan area and Xiaodong Guo-Tianziping area. The prediction results will provide a scientific basis for the gold exploration in West Qinling Mountains of Gansu Province.