石槽村地区断裂构造与砂岩型矿产成矿的关系探讨

Discussion on the relationship between fault structure and sandstone type mineral mineralization in shigoucun area

本文通过分析鄂尔多斯盆地西缘—石槽村地区矿产集中分区的地质构造特征,根据构造特征,探讨断裂构造与砂岩型矿产在空间上的关系以及断裂构造在成矿中的作用,分析认为深大断裂及次级构造是还原流体的有利通道,是铀沉淀富集的重要因素。断裂构造不仅为成矿流体运移提供有利通道,也为成矿物质的富集提供了场所,而且还影响着矿化的空间展布特征。因此,矿化受构造控制作用明显,断裂构造与成矿有着密切关系。

Based on the analysis of the geological and structural characteristics of the mineral concentration areas in the western margin of Ordos Basin and shigoucun area,this paper discusses the spatial relationship between the fault structure and the sandstone type mineral and the role of the fault structure in the mineralization,and concludes that the deep and large faults and the secondary structures are the favorable channels for reducing fluid and the important factors for uranium precipitation and enrichment.Fault structure not only provides a favorable channel for the migration of ore-forming fluid,but also provides a place for the enrichment of ore-forming materials,and also affects the spatial distribution characteristics of mineralization.Therefore,the mineralization is obviously controlled by the structure,and the fault structure is closely related to the mineralization.