Abstract:

Yangshan gold deposit is located in the Longnan area of Gansu Province,it is a very large micro-disseminated gold deposit,the deposit is mainly controlled by Anchanghe-Guanyinba fault belt.The lithology of this area are mainly phyllite,limestone and plagiogranite porphyry.The conditions of recharge,runoff and discharge of groundwater and surface water in this area is relatively simple,by analyzing the region quaternary pore water,layered rocks fissure water,bedrock fissure water and structure belt pulse-shaped fissure water,we discuss the impact of atmospheric precipitation and various types aquifers on the  water-filled of the deposit,and take treatment to prevent water-filled using prevention of surface water,and combined with the mine water.At the same time,we propose the initial proposal for use of groundwater to provide a reference for the next work.

Key words: Hydrogeological features, Water filling factors, Prevention measurement, Yangshan gold mine, Gansu Province