马丢萤石矿矿床地质特征及围岩稀土元素地球化学特征

Geological characteristics and REE geochemistry of Madiu fluorite deposit

马丢萤石矿是河南省近年来探明的又一重要萤石矿床。围岩稀土元素分析结果表明,马丢萤石矿围岩稀土元素配分曲线为相对较缓的右倾斜,稀土元素总含量较高,轻稀土相对富集,Eu弱亏损,Ce无亏损。综合分析马丢萤石矿矿床地质特征及其围岩稀土元素地球化学特征,认为该矿床应为低温热液成因-断裂带充填交代型矿床。

Madiu fluorite deposit is another important fluorite deposit found recently in Henan Province.The analysis results of the host-rock REE geochemistry show that the REE distribution pattern of the host rocks is leaning to the right gently,the total rare earth content is high,the light rare earth is enriched,the Ce is normal while the Eu is negative anomaly(weak).According to the geological characteristics and the hostrock REE geochemical characteristics of the fluorite deposit,it is considered that Madiu fluorite deposit may be low temperature hydrothermal genesis-fault filling replacement type.