| Tao Yuan Copper Mine is located at the border of Nei Qiu county and Lin Cheng county which are both in He Bei Province. Tectonics is located in the western edge of "Zan Huang uplift", artemisia booth is the east wing of the building bottom syncline which is basically a monoclinal structure, what is more, it is currently the largest copper deposits found in southern Tai Hang Mountain. In this study, I restored the ancient tectonic stress field by analyzing the existing data, field survey, measurement of tectonic elements,researching of strata and ore structure, geological maps and other contents, meanwhile,combining with the tectonic background and geological evolution. Based on this, I studied the history of the tectonic evolution of regional magmato to determine the control role of geological structure of rock and ore body, providing favorable and reliable conditions for the prospecting at the mining area periphery and deep prospecting in the future, which will be conducive to achieve a major breakthrough.The occurrence of Tao Yuan Copper Mine is in group 2 of south temple palm in the Gan Tao River in Gu Yuan ancient world, the majority of ore lithology basalt is as the form of slice and the relationship between the basalt and surrounding rock is intrusive contact,besides, the ore body especially blind ore body is existent in vein and lenticular; The reason of the fracture before the metallogenic in the mining area is that the region is being squeezed from strong trending stress from north and south and the torsional stress from the east to the north, and then the general nearly east-west "S" type bending and shear crack fracture belt formed within the scope of the mining area,which makes advantages for activities, transport and storage of basic magma in mining area and the ore-forming hydrotherm. Among them, the bottom of syncline structure has conspicuous control effect of mineralization which mainly occurs in the decollement fracture system and brittle fracture system in the axis. Interlayer slip fault system derived from group 2 in south temple whose lithology is tuffaceous slate and chlorite schist; Core brittle fracture system derived from secondary fracture for building bottom syncline which grew in pieces forming basalt in the group four of axis of the south temple. The above two kinds of fracture structures directly located the output parts of the vein. The ore-controlling structure in the north of mining area mainly includes ductile shear belt and the brittle fracture zone overlaying on the ductile shear belt, ductile shear zone can be divided into the strong and the weak deformation belts, the ore body mainly occurs in the strong deformation zone. |
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