藏东“三江”地区热液型铀矿成矿特征与找矿方向

The metallogenic characteristics and prospecting direction of hydrothermal uranium deposit in “Sanjiang” area of Eastern Tibet

藏东"三江"地区是我国著名的多金属成矿地带,但区内的铀矿地质工作尚处于起步发展阶段。对区内已有典型铀矿(化)点的成矿特征进行了系统研究,认为火山岩型与花岗伟晶岩型铀矿的找矿前景不大。而花岗岩内、外接触带型铀矿化的规模相对较大,成矿条件相对较好,是区内下一步寻找热液型铀矿的主攻目标类型。

Sanjiang Area of east Tibet is a famous polymetallic metallogenic belt in China,but the uranium geological work is the initial stage of development in the area.This paper makes a systematic research of the existing typical uranium metallogenic characteristics,we believe that volcanic and granite pegmatite type prospecting potential is little.The granite internal and external contact zone type Uranium mineralization have relatively large scale and relatively good metallogenic conditions,is in the next step for the main target type hydrothermal type uranium deposit.