通过银洞山铁矿床地质特征、矿体特征、矿石矿物特征及成矿作用等综合研究认为该铁矿床属同源基性-超基性岩浆分异晚期分凝作用成因。矿体呈层状、透镜状产出，钛磁铁矿化严格受辉石岩岩相控制，成矿时代推测为早古生代。矿床中矿石矿物以钛磁铁矿、钛铁矿及白钛石为主，脉石矿物主要为辉石、普通角闪石等。%Through the comprehensive study of the characteristics of geology, ore body, ore mineral and mineralization of Yindongshan iron ore deposit, it is found that this iron ore deposit is caused by segregation of homologic basic-ultrabasic magma in the late differentiation. The ore body is layered, lenticular; the titanium magnetite mineralization is strictly controlled by pyroxenite lithofacies; the metallogenic epoch is presumed to be the early Paleozoic era. In the deposit, ore minerals mainly include titanium magnetite, ilmenite and leucoxene;gangue minerals are mainly pyroxene, hornblende and so on.
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