关键词: 地质特征, 矿床成因, 找矿方向, 舞阳铁矿田, 河南省

Abstract:

Jingshansi iron deposit,one of the three largest deposits in Wuyang iron ore field,whoes proven reserves above 500 m reaches 224.09 million tons,still has a large prospecting potential in its periphery.We analysis area genesis of the type of prospecting potential and exploration direction,according to the basic geological characteristics of the orebody and tectonism feature,to provide theoretical support for the prospecting work in the area,and also to achieve the purpose of major break through in prospecting.Study results suggest that the deposit is formed by direct deposition in a coastal environment,its deposit type is the Algoma-type banded iron construction with greenstone belts iron deposit.In the mining area has been controlled,the seam is continue extending to the deep with the trend of no thinning;and there is large prospecting potential outside the west side of the mining area and under 500 m in the south side,prospecting direction should be focused within the 15 km area between the Jingshansi to the Tieshan mine area, and the 20 km triangle area between Yaozhuang（Wugang City） and Nanfangzhuang （Ye county）.

Key words: Geological features, Deposit genesis, Prospecting direction, Wuyang iron ore field, Henan Province