多道能谱测量在冀东花岗岩型稀有金属矿勘查中的应用
程立群, 张文雨, 王凯, 王斌, 裴明星

The application of multi-channel energy spectrum survey to the exploration of granite type rare metal deposits in eastern Hebei
CHENG Li-Qun, ZHANG Wen-Yu, WANG Kai, WANG Bin, PEI Ming-Xing
图5 稀有金属矿化主要岩性钍铀交会
Fig.5 Cross plot of uranium and thorium about rare metal mineralization