| Abstract: | A polymetallic zone dominated by U-W mineralization was found in Northeast Guangxi. Distributed along the east contact zone
of a complex granite mass, it extends for about 100 km in length, with more than fifty deposits and prospects embraced. The
deposits show a wide range of genetic types, related to the granite, from magmatic (including pegmatite and skarn deposits)
through hydrothermal mineralizations (hypo-, meso- and epithermal) all the way to tin placers, constituting a very intact
metallogenetic series of granites. The epithermal U-W deposits are considered as a new type for their unique geological and
geochemical characters, such as the paragenesis of U and W and the large time gap (> 40 Ma) between ore and granite.
This project was financially supported by the Open Lab. of Ore Deposit Geochemistry, Chinese Academy of Sciences. |
