滇、川、黔成矿区的铅锌矿源层（岩）

滇、川、黔铅锌成矿区的矿源层（岩）及其成矿作用，具多矿源层（岩）、多容矿层和多遮挡层共存的特点。矿源层（岩）改造成矿分海西晚期改造生成贫铅锌矿床和燕山期改造生成铅锌富矿床两个旋回，改造成矿的３个主因是：多条继承、发展了基底构造的深一道断层系统，峨眉山玄武岩浆上涌产生的高热能、喷气、矿质和广泛、多中心循环的热卤水，铅锌矿床为沉积─改造─后成成矿。

Ph-Zn Source Beds(Rocks) of Dian-Chuan-Qian Metallogenic Region

The characteristic of the co-existence that there are multi-layers(rocks), multi-host layers and multi-barriers in the source beds(rocks) of Dian-Chuan-Qian metallogenic region is outlined. The source beds (rocks)can be grouped into two cycles,i. e. poor Pb-Zn mineral deposit reformed in the later Period of Hercynian,rich Pb-Zn mineral deposit reformed in Yanshanian. Three factors are dominant in the reformation metallogenesis:the first one,many faults inherited and developed from deep-seated faults in the basemen. The second,high thermal energy,fumarole gas,mineral materials produced by upwelling of Emeishan basalt magma. And the third,hot brine cycled with many centres. Therefore,it is believed that the Pb-Zn mineral deposit has experienced deposition-reformation-epigenetic metallogenesis.