| Jiapigou gold mine located in eastern margin of North China, East Tianshan belt ~ Yinshan and the northern margin of the eastern end of the new China was leading the second uplift of the southern tip of the eastern margin Zhang transition zone, as the Chinese-style structure Huifa River tectonic zone with the things composite parts. This paper a detailed study of the Jiapigou gold deposits geological setting, fluid inclusion characteristics, mineralization and mineralization events of the times, and closely related to granite dykes Geological and geochemical characteristics.In this paper, and carefully study the full collection on the basis of previous data, and make a lot of field work, comprehensive use of structural geology, petrology, mineralogy, mineral deposit geology, geochemistry, isotope geology and other disciplines of theoretical and methodological , draw the following conclusions: the main mining area Jiapigou Jiapigou by NW faults to the control of local ore bodies in ductile shear zones and small fracture control; pyrite, potassium can be seen as a sign of prospecting, major elements The results show that high content of iron ore, potassium, low sodium content, the number of out migration of ore-forming process occurs, we found during Jiapigou research, K-feldspar of ore have been found around; Jiapigou formed in the 240 - 210Ma, mainly in the period of the ancient Asian Ocean to the North China plate during subduction, but the area is not large-scale evidence of magmatic activity, also from the structural setting, ore fluid, material sources, we presumed Jiapigou gold into belt of magmatic hydrothermal deposit. |
PDF Full Text Request