详细信息
遵义丁台镍钼矿床稀土元素地球化学特征及其地质意义
REE Geochemical Characteristics in Dingtai Ni-Mo Deposit in Zunyi,and Their Geological Significance
文献类型:期刊文献
中文题名:遵义丁台镍钼矿床稀土元素地球化学特征及其地质意义
英文题名:REE Geochemical Characteristics in Dingtai Ni-Mo Deposit in Zunyi,and Their Geological Significance
作者:张梅江 李明琴 邓旭升 张双菊 谭月
第一作者:张梅江
机构:[1]贵州省地质调查院;[2]贵州大学资源与环境工程学院;[3]贵州理工学院资源与环境工程学院
第一机构:贵州省地质调查院,贵州贵阳550005
年份:2013
卷号:30
期号:4
起止页码:36-39
中文期刊名:贵州大学学报:自然科学版
收录:CSTPCD
基金:国家自然科学基金项目(46302001)
语种:中文
中文关键词:镍钼矿床;稀土元素地球化学;遵义丁台;贵州
外文关键词:Ni-Mo deposit ; REE geochemistry ; Dingtai area in Zunyi ; Guizhou
摘要:对丁台镍钼矿床中的矿层及其顶、底板岩石进行系统采样,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∑REE变化大,轻、重稀土均富集,富集程度相近,分馏程度不明显;δCe=0.54-0.79,平均0.68,δEu:1.02-2.61,平均1.45;La/Ce=0.60-0.93.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。∑REE-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 Dingtai Ni-Mo deposit in Zunyi. REE geochemical characteristics were distinguished, i e, ∑ REE contents are large change , ∑ LREE and ∑ HREE are abundant, fractionation degree are not obvious, δCe = 0.54 - 0.79 (0.68 on average), δEu = 1.02 - 2.61 ( 1.45 on average) ; La/Ce = 0.60 - 0.93. REE geo- chemical characteristics suggest that Dingtai Ni-Mo deposit were deposited in hot seawater sediments under reduc- tion environment with dray climate. The graph of ∑REE- La/Yb suggests that mineralizing material have many origins.
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