若尔盖铀矿田放射性物探异常特征分析及其找矿应用

Radioactive Geophysical Anomaly and Prospecting for the Roigê Uranium Ore Field

放射性物探手段测量是寻找放射性矿产的重要依据,尤其是配合地质测量开展的放射性物探测量手段,对于铀矿地质找矿具有直接的指示意义。本文对若尔盖铀矿田新一轮的铀矿地质调查工作进行了整体梳理,对铀矿田内开展的放射性物探工作进行了全面总结,提炼出在若尔盖地区寻找铀矿的三种有效的物探手段对其特征进行了详细总结分析,并对其在找矿中的应用进行了论述。

This paper deals with 3 effective geophysical prospecting methods for the Roigêuranium ore field.The application of total gamma survey scan to the determination of range of reconnaissance narrows down the prospecting area.Gamma spectrum survey is applied to the evaluation of shallow anomalies in well exposed bedrock area with total gamma anomalies.Radon emanation survey is applied to the evaluation of deep anomalies in the poorly exposed bedrock and shallow coverage area with total gamma and gamma spectrum anomalies.The three methods in combination with hydrochemical survey and geological data provide scientific basis for deep prospecting in the Roigêuranium ore field.