Zhangwan uranium deposit is located in the clamping area of danfengshangdan fault and Caichuan fault（Zhuxia fault）

Based on the study of the geological characteristics and metallogenic geological conditions of Zhangwan granite type uranium deposit

combined with the preliminary results of the prospective investigation and exploration of hard rock type uranium and thorium and other mineral resources

this paper holds that the deposit occurs in the granitic cataclasite in the secondary structure of the side of Shangdan fault zone and its oblique intersection

and the uranium ore body has the characteristics of multi-layer production. The chemical composition of the ore is characterized by rich silicon and low alkalinity

especially poor sodium. Uranium minerals are mainly uranite

pitchblende and uranium black. Danfeng area of Shaanxi Province is an important origin of granite type uranium deposits in China. It is of great significance to study the geological characteristics and genesis of uranium deposits in this area for the next step to find granite hydrothermal type uranium deposits in this area.