衡阳盆地西北缘物化探特征及其找矿意义

程云涛, 刘俊峰, 曹创华, 王荡

Ore prospecting on northwestern margin of Hengyang Basin using geophysical and geochemical information

CHEN Yun-Tao, LIU Jun-Feng, CAO Chuang-Hua, WANG Dang

表1 测区岩(矿)石标本物性参数测量结果

Table 1 Measurement results of physical parameters of rock (ore) samples in survey area

岩(矿)石 ρs/(Ω·m) Fs/% κ/(10-54πSI) Jr/(10-3 A·m-1) 花岗岩 3000~5000 1.0~1.2 8~20 2~25 硅质岩 1000~3000 0.7~1.0 1~3 1~4 板岩 500~2000 1.0~1.5 1~3 1~4 粉砂岩 20~180 0.8~1.5 0~2 1~5 断裂带 50~200 2.0~4.5 -2~-8 1~23