Analysis on Mineralization Geological Conditions of Danchi Metallogenetic Belt, Guangxi, China

The Danchi metallogenetic belt is a very important Non-ferrous base in China. According to the status of resource mining and theory research, this paper analyzed the geological conditions (i. e. stratum, tectonic evolution and magmatism), in order to supply the theory guidance for the prospecting in this district. The exposure strata consists of Devonian, Carboniferous, Permian, Triassic and Quaternary, but Devonian is the key stratum, which there is a close relation with Sn–polymetallic deposits. This area, which experienced three tectonic evolution stages, is situated in the south margin of the Yangtze platform. Because of the affect of the tectonic evolution, it was characterized the special geological conditions and mineralization environment. The main magmatism occurred in the medium and late period of Yanshan, including biotite granite, granite porphyry, quartz diorite and white granite, in the pattern of dykes, rock strain, rock bed commonly. In the whole, the prospecting is rather favorable, in the deep or around of the known deposits.