激电效应对AMT正演的影响及其在砂岩型铀矿中的数值模拟

胡英才, 王瑞廷, 李貅

Influence of induced polarization effects on AMT forward modeling and its numerical simulations for sandstone uranium deposits

HU Ying-Cai, WANG Rui-Ting, LI Xiu

表2 层状介质模型一维与二维正演计算结果对比

Table 2 Comparison of one-dimensional and two-dimensional forward calculation results in layered model

频率/Hz 1D视电阻率 解析解/(Ω·m) 2D视电阻率数 值计算结果/(Ω·m) 视电阻 率误差/% 1D阻抗相位 解析解/(°) 2D阻抗相位 数值计算结果/(°) 阻抗相位 误差/% 10400 100.018 100.169 0.151 45.020 45.048 0.062 5200 99.332 99.410 0.079 44.882 44.912 0.067 2600 102.617 102.640 0.022 44.046 44.057 0.025 1300 114.220 114.280 0.053 46.079 46.077 0.004 640 114.751 114.838 0.076 53.415 53.418 0.006 320 91.935 91.989 0.059 61.437 61.446 0.015 159 63.163 63.188 0.040 66.878 66.888 0.015 79 39.078 39.084 0.015 68.978 68.988 0.014 40 23.550 23.550 0 65.185 65.191 0.009 18.8 15.850 15.849 0.006 52.652 52.654 0.004 9.4 15.825 15.825 0 37.224 37.224 0 4.7 22.162 22.163 0.005 24.973 24.972 0.004 2.34 36.640 36.643 0.008 18.387 18.387 0 1.17 62.650 62.654 0.006 16.292 16.293 0.006 0.59 104.479 104.484 0.005 17.018 17.019 0.006 0.293 168.476 168.478 0.001 19.539 19.539 0 0.146 255.138 255.141 0.001 23.081 23.081 0