青海省绿梁山铜矿床地质特征研究

    Geological characteristics of Lyuliangshan copper deposit in Qinghai Province

    • 摘要: 青海省绿梁山铜矿床位于南祁连地块与柴达木地块拼接部位北缘,是我国西部重要的多金属矿床之一。通过对矿床的地质特征进行详细研究和系统总结认为: 该矿床矿体主要赋存于滩间山群变质火山岩中,其围岩蚀变有硅化、黄铁矿化、黄铜矿化、磁铁矿化、绿帘石化及绿泥石化等; 矿石类型主要为含石英细脉、网脉蚀变岩型铜矿石; 矿床类型属破碎带蚀变岩型铜矿床。结合以上特征,总结了绿梁山铜矿床找矿标志,指出了下一步找矿方向,为该区相同类型矿床的勘查工作提供了思路和理论依据。

       

      Abstract: Lyuliangshan copper deposit of Qinghai Province is located in the northern margin of the junction between Qaidam block and South Qilian block, and is one of the important polymetallic deposits in Western China. By studying the geological characteristics of Lyuliangshan copper deposit, the authors summarized the geological characteristics of the deposit. The ore bodies of the deposits are hosted in the metavolcanite of Cambrian-Ordovician Tanjianshan Group. The wall rock alteration is associated with silication, pyritization, chloritization, epidotization and sericitization. The main ore types are copper-bearing quratz vein type and copper-bearing altered rock type. Lyuliangshan copper deposit is of an alteration type in fracture zones. Above all, the authors summarized the ore-controlling factors and indicated the prospecting direction, and provided some new ideas for the copper exploration in Qinghai Province.

       

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