相山矿田山南铀矿区富矿体空间分布规律及其找矿方向

Spatial distribution of high grade orebodies in Shannan uranium mining area and prospecting direction

山南铀矿区具有优越的铀成矿地质条件。矿区里有矿田内最早期提交和开采的横涧、岗上英及石马山3个矿床,经过40 a开采后,资源危机程度高。近几年,通过在矿区深部及外围的接替资源勘查找矿,新增332+333型铀资源量××××t,富矿体资源量占新增资源量的72%,其中岗上英—石马山地段是富铀矿体的主要产出地段。在总结富矿体分布规律基础上,分析富矿的控制因素,提出岗上英东部71A线以东—石马山25A线以南的区段是进一步寻找富矿的最有利地段。

Shannan uranium mining aera in Xiangshan ore field has excellent uranium metallogenic conditions. There are Hengjian, Gangshangying and Shimashan deposits in the ore field. After forty year＇s mining, the resources of the three deposits have faced a crisis. Geological features and metallogenic controlling factors of the area are analyzed, and distribution rules of high grade orebodies are summarized. The favorable area for further prospecting high grade uranium orebodies is presented, that is, from the area to the east of line 71A in the east of Gangshangying to the area to the south of line 25A in Shimashan.