Abstract:

With mostly favorable ore-forming conditions for uranium mineralization, Taoshan area is one of the four important granite-type uranium ore fields in South China. Previously a lot of research work have  been done, but the integration of geological, geophysical, geochemical and remote sensing information of the entire area and quantitative evaluation of uranium mineralization potential are lacking. By studying on some typical uranium deposits of Taoshan area, such as Dabu uranium deposit, the authors investigated the ore-forming factors and prediction varibles in the modeling area and summarized the relations among lithology, structure, alteration and uranium mineralization. Using the prediction varibles, smallest predication zones have been delineated and selected based on GIS. It is concluded that the area have expanding uranium resources potential and the SW and NE section of Taoshan fault should focus on the silicified zone subtype and the cataclastic altered rock zone subtype respectively. Furthermore, the deep of the NE section also has great mineralisation potential.

Key words: Taoshan area, Jiangxi, granite type, uranium deposits, ore-forming factor, prediction model