The Ore-controlling Fracture System and Prospecting Direction of 284 Dong Gold Mine in Wulate Middle Banner, Inner Mongolia
The 284 Dong gold deposit is an altered rock-type gold deposit discovered in recent years, located in the Baoyintu gold-nickel-copper-iron-manganese polymetallic metallogenic belt in Inner Mongolia. It occurs in the contact zone between the regional F9 fracture and the late Variscan quartz diorite fault. The F9 fracture is manifested as a large-scale ductile shear zone at early stage, and undergoes brittle deformation superposition in the later stage. Together with the secondary fractures in the hanging wall and footwall, it forms a gold ore-controlling fracture system. The main fracture controls the scale, morphology, and occurrence of the main ore body in the mining area, while the secondary fracture and joint fissures in the hanging wall and footwall control the distribution and mineralization enrichment of the secondary ore body in the mining area. Gold deposits are produced at the intersection of the "y"-shaped main and secondary fractures. The ore-controlling fracture system is analyzed, and it is pointed out that the next ore prospecting direction is mainly in the deep part of the known deposits and the intersection of the "y"-shaped main and secondary fractures.
284 Dong Gold Mineore-controlling fracture systemore prospecting direction