活性炭测氡及分量化探在河北省沽源县大官厂研究区铀矿勘查中的应用研究

Application of Radon Survey by Activated Carbon and Partial Extraction Geochemical Prospecting Methods for Uranium Exploration in Daguanchang of Guyuan,Hebei

河北省沽源县大官厂研究区活性炭测氡和分量化探异常叠合区与铀工业孔具有较好的对应关系,表明活性炭测氡-分量化探组合测量方法在火山岩型铀矿勘查中具有较好的指示作用。基于活性炭测氡和分量化探测量数据,探索性地建立了综合勘探有利指数P的计算方法和铀成矿有利度分级方法,大官厂的钻探成果初步验证了上述方法的有效性。

The superimposed area of anomalies of radon survey by activated carbon and partial extraction geochemical prospecting are well correspondent to the locations of industrial-grade boreholes in Daguanchang district of Guyuan,Hebei Province,which indicates that the result of combined survey of radon survey by activated carbon and partial extraction geochemical prospecting could play agood indication role in the exploration of uranium deposits of volcanic type.Based on the data of radon survey by activated carbon and partial extraction geochemical prospecting,the calculation method of favorability index of comprehensive exploration P and the grading method of favorability of uranium mineralization were explosively built and the effectiveness of the above methods were verified by the drilling results in Daguanchang district.