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纳米比亚欢乐谷地区白岗岩微量元素地球化学特征 被引量：4

Geochemical Characteristics of Trace Elements of Alaskites in Gaudeanmus Area,Namibia
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摘要 文章着重介绍了纳米比亚欢乐谷地区白岗岩的微量元素地球化学特征。该区不同类型的白岗岩具有不同的球粒陨石标准化稀土元素配分曲线型式,微量元素含量变化范围较大,原始地幔标准化微量元素曲线显示相对分散,反映其物源区在成分上存在某种程度的不均一性,以及不同类型的白岗岩具有不同的物源区。白岗岩可能是由前达马拉基底岩石经部分熔融作用所形成,其微量元素总体上显示出壳源的特征。 This paper studied the trace etement geochemical characteristics of the alaskite in the Gaudeanmus area, Namibia. According to the characteristics of trace elements, the source of alaskite shows the crust origin. Different type alaskites show different chondrite-normalized REE patterns which display var- iable trace element content, and their primative mantal-normalized trace element patterns are relative dispersed. All the above-mentioned indicates in some extent that the component of provenance area is in- homogenity and different provenance area produced different types alaskites. Therefore, alaskites in the region might be formed by partial melting of heterogeneous Pre Damara basement rocks.
作者 王生云 范洪海 顾大钊 陈金勇 陈东欢 聂江涛 高阳
机构地区 核工业北京地质研究院中核铀资源勘查与评价技术重点实验室 南京大学内生金属矿床成矿机制研究国家重点实验室
出处 《铀矿地质》 CAS CSCD 2013年第5期274-282,314,共10页 Uranium Geology
基金 核能开发项目--非洲中南部古老地块铀矿综合识别评价技术及应用研究成果之一
关键词 稀土元素 微量元素 地球化学特征 白岗岩 纳米比亚 raer earth element trace element geochemical characteristics alaskite Namihia
分类号 P595 [天文地球—地球化学]
  • 相关文献

参考文献32

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共引文献173

同被引文献78

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铀矿地质
2013年 第5期

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