APPLICATION OF REMOTE SENSING AND GEOCHEMICAL EXPLORING INFORMATION IN THE PROSPECTING IN NORTHWEST SICHUAN

Northwest Sichuan is one of the significant regions for primary gold deposits in China, especially for the fine disseminated type of gold deposits. The distribution of middle, large and super-large gold deposits, such as Shuajingsi Lianhecun, Gala and Jinmuda, indicates a great potential for gold mineralization in this area. Based on the regional metallogenic law and ore-forming conditions, using remote sensing technology, the regional structural framework in NW, E-W and near S-N directions is established. The abstraction of alteration information is optimized. A regional remote sensing exploration model is built. With integrated information of remote sensing, geology and geochemical exploration, the target areas are forecasted by GIS.