Analysis of Ore-controlling Structures and Research on Ore-controlling Regularity in Qijiagou Mining Area
Qijiagou mine is facing the problem of resource depletion due to long-term mining. In view of this,in this study,the regional geology and ore body characteristics of Qijiagou mining area are analyzed,the ore-controlling tectonic framework of EW-striking fault and NNE-striking fault is constructed,and the tectonic analysis of Qijiagou mining area is carried out. It concludes that the mining area is controlled by a multi-level fault tectonic system,and the overall ore-controlling of the fault structure is manifested in the three types of NNE,NE,and NEE,and the ore-controlling mode of the structure is manifested as follows:the primary compresso-shear fault structure controls the development of rock type veins,and the secondary transtensional fracture in the footwall produces quartz vein-type veins. The construction of the tectonic ore-controlling mode lays the foundation for the prediction of ore prospecting and the delineating of the target area for ore prospecting.
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