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柞山成矿密集区大西沟—银硐子超大型矿床成矿堆积环境处于具有较长时间和幅度较大的裂陷发育史的南秦岭泥盆纪沉积盆地中 ,地球化学环境为柞山镇 Pb、 As、 Cu地球化学省 ,为NWW向富 Cu、Mn、Ba、 Pb、Ag和 NW向低 Pb高 Cu、As及 NE向富 Pb、Zn、Cu地球化学带的复合部位。金属成矿物质来源于基底地层 ,硫来源于海水中的硫酸盐。成矿作用具有热水同生沉积—交代→热水混合同生沉积→热水同生沉积演化多阶段性。矿床为同生断裂 -热水流体 -地球化学动力学多重耦合作用形成 ,成矿系统的动力学使地球化学失稳 ,触发矿质骤沉 ,其为成矿的主控因素
The ore-forming accumulation environment of the Daxigou-Yinduzi super-large deposit in the Zones of Ouzhan mineralization-intensive area is located in the Devonian sedimentary basin of the South Qinling, which has a long history and relatively large rift history. The geochemical environment is Zoushan Town Pb, As and Cu geochemistry provinces are the NWW-rich Pb, Cu, As and NE-rich Pb, Zn and Cu geochemical zones with Cu, Mn, Ba, Pb, Ag and NW directions. Metallogenic materials come from the basement and sulfur comes from sulphates in seawater. The mineralization has the characteristics of multi-stage sedimentary evolution of syngenetic sedimentary-hydrothermal alternation → syngenetic deposition of hot water → syngenetic deposition of hot water. The deposit is formed by the multiple coupling of syngenetic fracture-hydrothermal fluid-geochemical kinetics. The kinetics of the metallogenic system destabilizes the geochemistry and triggers the mineralization and sedimentation, which is the main controlling factor of metallogenesis