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高邑-马谷田一带铁矿,位于秦岭褶皱带南亚带中部北缘,泌阳羊册大断裂南西侧。矿床属与基性辉长岩有关的裂隙交代充填细脉浸染型热液矿床。矿体赋存在细粒辉长岩中,与围岩界线较清楚。矿石为星散浸染状和细脉浸染状含铜磁铁矿石。通过1∶2000地磁测量得知,在小陈庄、大焦岗、北陈庄等三个地方ΔZa磁异常等值线相对较为密集,即GMⅠ、GMⅡ、GMⅢ磁异常区。
Gaoyi - Ma Gutian area iron ore, located in the Qinling Fold Belt South margin of the central northern margin of Biyangyangtou large fault south west. The deposit belongs to the microfacies diagenetic hydrothermal deposit which is related to the basic gabbro. Ore bodies exist in fine-grained gabbros, and the boundaries of the wall rocks are clearer. Ore ore scattered and disseminated disseminated bronze magnetite ore. By 1: 2000 geomagnetic survey, it is found that in the three places of Chenzhuang, Dagangang and Beichenzhuang, the magnetic anomalies of ΔZa are relatively dense, that is, the GM Ⅰ, GM Ⅱ and GM Ⅲ magnetic anomalies.