The problems of environmental geology and database for mining in Northwestern China

The mineral resources in the Northwestern China are very abundant,and mining industry has become the importan teconomic main stay of the district. The ecologic environmental backg round in the area is very poor,the predatory mine exploration in the recent 50 years makes it more serious. The main environmental geological problems of mine exploration are to destroy environmental resources,to cause geologicaldisa sters and result environmental contamination.The different mines in differen tareas,such as petroleum,gas, coal,metal,nonmetal,building material and salt,may cause differen tenvironmental geological problems.Based on MAPGIS,the database of Windows'style is set up.