In spatial distribution, coal fields are developed in the anomalies of high chargeability sedimentary areas;metamorphic iron deposits occur in the anomalies of high chargeability metamorphic areas;

• 空间分布上，与沈积作用密切相关的煤矿主要分布在沈积岩高极化率地区，变质铁矿主要分布在变质岩高极化率地区，内生金矿则主要分布在火成岩高极化率地区。