發(fā)布時間：2018-10-12 08:16

【摘要】：四川甲基卡新三號(X03)超大型鋰礦脈是近年發(fā)現(xiàn)且價值巨大的鋰礦化偉晶巖脈,但相對缺少地球化學(xué)的研究,利用ICP-MS測試手段對該礦脈ZK1101鉆孔中44件樣品進行分析測試,發(fā)現(xiàn)該礦脈稀土總量很低(∑REE為0.180×10~(-6)~8.613×10~(-6),平均值為2.543×10~(-6)),配分曲線呈右傾斜型,相對富集輕稀土,總體表現(xiàn)銪負(fù)異常.圍巖的稀土含量與一般片巖相近(∑REE為160.134×10~(-6)~265.881×10~(-6),平均值為230.718×10~(-6)),稀土配分曲線總體呈右傾平滑趨勢,富集輕稀土,銪為負(fù)異常.銪的分布具有特殊性,表現(xiàn)為銪在偉晶巖脈的邊部具有顯著的正異常.∑REE與Li呈負(fù)相關(guān)性,δCe與Li則表現(xiàn)為弱正相關(guān)性.這一首次發(fā)現(xiàn)的低稀土總量和礦脈邊部Eu顯著正異常的特殊性,對于甲基卡偉晶巖的含礦性評價可能具有重要意義.
[Abstract]:The Sichuan methylkaxin 3 (X03) super-large lithium vein is a pegmatite vein of lithium mineralization found in recent years, but it is relatively lack of geochemical research. The 44 samples in the ZK1101 borehole of the vein were analyzed and tested by means of ICP-MS. It is found that the total amount of rare earth elements in this vein is very low (鈭，

本文編號：2265431