The U,Ba,Zn,Zr,Hf,Pb elements has been considered the indicator elements in the forming of uranium ore,and the gray gritstone is analogical indicator elements and REE characteristics with the gray rock in the forming of uranium ore.

• U,Ba,Zn,Zr,Hf,Pb等为铀矿的成矿指示元素; 灰色粗砂岩与含矿岩石具有相同的成矿指示元素组合和稀土元素特征;