The Metallogenic Source And Ore-forming Tectonic Dynamics Of The Mutougou Molybdenum Mine In East Qinling

The Mutougou molybdenum mine in the Xiongershan mountain South of theQinling-East, is located in North China plate and Yangtze plate, bordering the North Chinaplate southern edge of the Xiongershan arc rift basin, that is now the Qinling orogenic beltland thrust fold belt of North China Plate southern margin and the Xiongershan block East,which South neighboring the Jiu County Song County basin. Molybdenum ore body of thestudy area mainly occur in the breccia pipe ore bodies are controlled by the breccia pipe,molybdenum ore body and breccia body into roughly corresponds to the relationship,Through the rock chemistry of molybdenum mine, hydrogen and sulfur isotope, leadisotope, hydrogen and oxygen isotopes, fluid inclusion analysis and research of rare earthelements, combined with previous research results, on the mining of ore-forming materialsources, study on the mechanism and ore-forming tectonic dynamics of mineral deposits.This ore across the Indo-Variscan movement during the period of late yanshanmovement and the early and mid, and late Triassic to early yanshan movement.Thinkthrough the study of mineralization time limit, Rock-forming material sources andWuzhangshan mountain rock, Huashan rock have homologous similarities, but formedearlier than the time limit of Wuzhangshan mountain rock and Huashan Rocks.Mineralization characteristics of this area in line with the general characteristics ofgeneral hydrothermal ore deposits, mineralization of temperature in the high temperaturerange; Main occurrence of molybdenum ore body in the breccia pipe, mainly by brecciapipe control of ore body. Time limit on the mineralization, Pb isotope, rare earth elements,hydrogen,oxygen and sulfur isotope analysis can be drawn, this deposit of ore-formingmaterial sources belonging to the mantle and shell hybrid, minerals from the deep of thedeposit, belonging to the mantle shell hybrid, Metallogenic geodynamic background,discussion on the mechanism of molybdenum deposits in the Eastern Qinling, come to themineral by cut through Qinling fold belt in northern margin of the mantle thrust upwardmigration, finally Ma Chao ying fracture control. Ore-forming tectonic Dynamics mainlydue to lithosphere in orogenic and thickened to form foot, causing material and thermalstructure of the new State, causing poor crust, mantle material gravity and density, andthermal state of change, causing the Earth’s crust and upper mantle material status and adjustment of the dramatic changes of relationship between the layers.