The application and significance of deep prospecting by using geogas survey in Xitian area,Hunan province

Xitian area on Hunan province is located in the famous human Naning tungsten-tin polymetallic metallogenic belt and that shows huge prospecting exploration in recent years. Because of the Quatemary cover prospecting difficulty in crease,the coverage effec-tive optimization methods is imminent with the deepening of the exploration work. Geogas survey prelimary solved the capture medium background influence,field operation system error and other issues by the unremitting research for many years,In combine with other methods,Xitian area on Hunan province optimization tungsten target applications found in the 190 meter deep underground tungsten ore body. The author thinks that the geogas survey can be used as a deep search for concealed deposies and effective geochemical explora-tion methods,in the coverage area of prospecting target areas selection play a huge role,promote the explorations of concealed depos-ites.