贵州沿河萤石矿稀土元素地球化学特征及成因探讨

Guizhou Geology(2016)

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Abstract
为了研究沿河县萤石矿成因,主要针对研究区内具代表性的水田坝和丰水岭两个矿床地质特征进行研究,并运用等离子质谱(ICP-MS)对稀土元素进行了系统分析.研究结果表明,围岩的稀土总量、轻稀土和重稀土的含量远高于萤石矿石,但是萤石的稀土配分型式与围岩相似.根据Moller等(1976)的Tb / Ca_Tb / La关系图,结合矿体特征和区地质背景研究,认为该区萤石矿为热水(热卤水)再造沉积岩(或矿床).
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Key words
REE,Fluorite,Genesis,Yanhe
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