The contact - metasomatic iron deposit, which emerges between intermediate - acid magmatic rock and carbonate rock, is controlled by geologic structure.

• 产于中酸性岩浆岩与碳酸盐岩接触带的接触交代型铁矿,受地质构造条件的控制,在安林地区形成了两条成矿带,包含8个矿田。