摘要
对贵州瓮安新河钒矿床4个钻孔中的含矿层和含矿层顶、底部共采集样品20件,测试分析样品中的稀土元素含量,探讨稀土元素地球化学特征。研究结果表明,矿床中的ΣREE变化大,轻稀土含量较低,重稀土富集,分馏不明显;矿床中δCe=0.37~0.83,平均0.70,Ce出现明显的负异常;δEu=0.63~0.97,平均0.81,Eu值为微弱至明显负异常;La/Ce=0.52~0.95,平均O.66。这些特征说明矿床形成于气候干燥条件下的海相热水沉积还原环境。ΣREE—La/Yb图解反映成矿物质具有多来源特征。
Samples were systematically collected samples and REE contents of ore and rock in ore roof and foot wall were analyzed in Xinhe V deposit in Weng-an.REE geochemical characteristics were distinguished,ΣREE contents are large change,ΣLREE are lower andΣHREE are abundant,fractionation degree are not obvious,δCe=0.37 ~ 0.83（0.70 on average）,δEu=0.63 ~ 0.97（0.81 on average）;La/Ce=0.52 ~ 0.95,（0.66 on average）.REE geochemical characteristics suggest that Xinhe V deposit were deposited in hot seawater sediments under reduction environment with dray climate.The graph of ΣREE—La/Yb suggests that mineralizing material have manyorigins.
出处
《世界有色金属》
2017年第13期144-146,共3页
World Nonferrous Metals
