Prospecting Prediction Using Geoelectric Extraction in the Periphery of the No.374 Deposit in Rongshui,Guangxi
To ascertain the uranium mineral ore-fields for the purpose of future exploration in the periphery of Guangxi Rongshui No.374 deposit,and further to delineate the target area for future prospecting,we carried out a prospecting study using geoelectric extraction and measurement techniques.At first,a feasibility test of ore prospecting was performed on a known ore profile,and the testing results show that clear anomalies of major ore-forming elements can be detected directly above the known orebodies,showing distinct ore-indicating effect.This test proved that this method is feasible and effective for local ore prospecting.Through the factor and clus-ter analysis of 13 elements extracted from geoelectricity,four element groups of F1(Pb-Zn-Ce-Eu-La-Nd-Yb),F2(U-Th-As),F3(Sb-W)and F4(Mo)were obtained,with F2 being the main factor in this study area,and F1 being the secondary factor.The abnormal distributions of those element groups were analyzed through draw-ing the abnormal scores of F1 and F2 factors,and we found that the abnormal distribution w(U)/w(Th)＞1/3 is an important index for uranium prospecting.According to the characteristics of single element,F1 and F2 factor,and w(U)/w(Th)anomaly,and with combination of local geology,we delineated two target areas(Ⅰ and Ⅱ),of which target area Ⅱ has a greater exploration potential for hidden uranium orebodies.
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