| This article is mainly guided by ore field geological mechanics and dynamics of tectonic mineralization, analyzes the structural plane mechanical properties change characteristics were in different directions and different characters, divides the tectonic system, summarizes the mining area tectonic ore-controlling rule, and studies the fracture tectonic geochemical characteristics of the mining area. On the basis of above, it summarizes the metallogenic regularities and prospecting marks of the area.The main achievements of this paper are as follows:(1) Hao Jiahe copper deposits is obviously controlled by source bed on the space, structure and fluid conditions. Mining area develops four groups of different tectonic structural combination in different directions. The four tectonic systems overall reflect that the structure has undergone at least four periods of tectonic movement:the NW structural belt-nearly SN to tectonic belt-NE to tectonic belt and nearly EW to tectonic belt, corresponding to the region tectonic stress direction in turn into to NE-SW (I) to nearly EW to (Ⅱ), NW-SE to nearly SN (Ⅲ)-(Ⅳ), respectively, the corresponding geologic periods are:the late yanshanian (time: 110.7Ma) and late yanshanian and Himalayan early (within first:60 79.5Ma)-> middle Himalayan (time:39.1 to 50.5 Ma)-Himalayan period (23.5～29Ma)(2) The NW compression shear fracture and fold (base anticline, sierra leone anticline) controls the space distribution of the ore body, is the main ore guide structures; NE to the structural belt (NE to interlaminar fracture and fold) is the main tectonic metallogenic epoches, controls the main ore body distribution, especially NE to pressure shear interlayer faults and the fault composite parts in the other direction, often forms the rich thick ore body, which is the main ore matching and depositing ore structure.(3) Fault tectonite element geochemical characteristics, the R type cluster analysis, factor analysis, typical fracture section of geochemistry and fracture structure rock ree trace elements geochemical characteristics are studied, and the system of geochemistry of ore-forming elements and its associated elements and spread rule, paragenetic association relation, spatial distribution and its relationship with geological structure are summaried.(4) According to the geological characteristics and ore-controlling tectonic and fracture tectonic geochemical characteristics, further summarizes the metallogenic regularities and the evolution process of Hao Guhe copper mine area, puts forward the prospecting direction, and provides theoretical basis for further ore-prospecting work in mines. |
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