关键词: 表壳岩, 褶皱构造, 控矿模式, 韧性剪切

Abstract: Studies show that the ore-controlling modes in Fengjiayu iron ore area include fold texture and ductile-brittle shear fracture composite texture types.The first period folds have controlled the overall distribution and size of orebodies while the second period folds have made the orebody morphology more complex.The composite ore-controlling by folds and ductile-brittle fracture mainly exhibits as such that the shearing has made the orebody regional distribution strongly oriented and the drag folds formed in the shearing process have re-enriched the orebodies.According to this knowledge, industrial orebodies were found by the drilling engineering around Mazikeng mining area, a breakthrough in ore prospecting.

Key words: Supracrustal rock, Fold texture, Ore-controlling mode, Ductile shear