综合物探方法在上杭盆地古石背地区铀矿勘查中的应用

李英宾, 谢明宏, 张占彬, 李毅, 魏滨, 张伟

The application of comprehensive geophysical method to the exploration of uranium deposits in the paleo-Shibei area of Shanghang Basin

LI Ying-Bin, XIE Ming-Hong, ZHANG Zhan-Bin, LI Yi, WEI Bin, ZHANG Wei

表2 研究区地面伽马能谱和土壤氡测量数据统计

Table 2 Statistical table of ground gamma spectrum and soil radon measurement data in the study area

w(U)/10-6 w(Th)/10-6 w(K)/% w(Rn)/(Bq·m-3) 背景值(X) 5.04 24.38 2.24 3560 标准偏差(S) 2.74 9.67 1.28 1400 变异系数(Cv) 0.54 0.40 0.57 0.39 偏高晕下限(X+S) 7.78 34.05 3.52 4960 高晕下限(X+2S) 10.52 43.72 4.8 6360 异常晕下限(X+3S) 13.26 53.39 6.08 7760