报道了对位于黔西六盘水-威宁地区铁-多金属矿床开展的锆石U-Pb年代学和微区元素地球化学研究,揭示了该新型矿床的成因与峨眉山大火成岩省的去顶作用有关.通过分析和总结峨眉山大火成岩省边缘地区不同类型表生矿床的空间分布特征,本研究提出该矿床成因是特殊的古地理环境(形成富铁红土化剖面)与晚二叠世时期反复的海进和海退作用相耦合的产物. The zircon U-Pb geochronology and micro-regional geochemical study of zircons in the iron-polymetallic deposit located in the West Liupanshui-Weining area, western Guizhou have been reported, revealing that the genesis of the new deposit is related to the top-removing effect of the Emeishan large igneous province By analyzing and summarizing the spatial distribution characteristics of different types of epoch deposits in the marginal area of ​​the Emeishan large igneous province, this study suggests that the genesis of this deposit is a special paleogeographic environment (the formation of iron - rich laterite section) and the repeated sea of ​​Late Permian Progressive and regression of the role of coupling products.