ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    浙江萤石矿床成矿规律与成矿模式

    Mineralization and Metallogenic Model of Fluorite Deposits in the Zhejiang Area

    • 摘要: 对浙江萤石矿床类型、空间分布及其与大地构造关系、成矿温度、成矿时代、成矿流体等特征进行了总结,并对其形成机制进行了探讨。指出浙江萤石矿的形成可能与深部年龄为80 Ma的岩体有关,成矿作用发生在太平洋板块快速扩张俯冲之后的减速松弛阶段;成矿流体为幔源流体、变质水、岩浆水及大气降水的混合流体;萤石矿的富化经历了多次溶解与沉淀的反复过程。提出了流体-地层-岩体-断裂控制的“四位一体”的成矿模式。

       

      Abstract: The ore types, spatial distribution and its relation to tectonics, ore-forming temperatures, ages and fluids, and formation mechanism of fluorite deposits in the Zhejiang area are summarized and discussed in this paper. It is suggested that the fluorite deposits in the Zhejiang area were possibly related to 80Ma intrusions and formed at relaxation stage after rapid subduction of Pacific plate; the ore fluids were mixture of mantle-derived fluids, metamorphic, magmatic and meteoric water, and formation of the fluorite deposits experienced several repeated process of dissolution and precipitation. A metallogenic model with fluid, stratum, granite and fault controlling elements is proposed.

       

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