Geological characteristics and origin of the Xitian tin orefield in eastern Hunan Province

The Xitian tin orefield constitutes an important of the Nanling multi-metallic mineralized belt. Obvious prospecting achievements have been made since 1999,and more than 20 relatively large-sized tin multi-metallic veins of different origin have been found and explored. Based on analyses of geological and geochemical characteristics of granitoids,ore-control structures and geological characteristics of the tin deposits,the authors discuss origin of the orefield and put forward further prospecting suggestions.