| 王明艳.广西热水沉积矿床中电气石岩地质地球化学特征[J].地质与勘探,2010,46(2): |
| 广西热水沉积矿床中电气石岩地质地球化学特征 |
| Geological-geochemical Characteristics of Tourmalite of HydrothermalSediment Deposits in Guangxi Province |
| 投稿时间：2009-05-08 修订日期：2010-03-02 |
| DOI： |
| 中文关键词: 电英岩 热水沉积矿床 地球化学 广西 |
| 英文关键词: tourmalite,hydrothermal sediment deposit,geochemistry,Guangxi |
| 基金项目:国家重点基础研究发展计划(973 项目)(编号2002CG412607)资助 |
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| 中文摘要: |
| [摘要]本文从岩石学和地球化学分析角度,研究广西热水沉积矿床中电英岩的地质地球化学特
征。电英岩在Al2 O3 -TiO2 及Al2 O3 -(K2 O+Na2 O) 图解上的坐标落在热水沉积区内,为热水沉积形成。
电英岩的稀土分配模式具有轻稀土富集,弱的负Ce 异常和负Eu 异常,为典型的热水沉积物的分布模
式。电英岩的啄18 O 值很低,较一般的热水沉积硅质岩低,可能是热水沉积电气石岩的固有特征,表明应
属热水沉积成因 |
| 英文摘要: |
| Abstract:From the view of petrology and geochemistry, this work makes analysis to geological and geochemical characteristics of tourmalite of hydro鄄
thermal sediment deposits in Guangxi郾The plot of Al/ (Al+Fe+Mn)and Al-Fe-Mn triangle diagram shows that the tourmalite lies in the area of hydro鄄
thermal sediments, implying its formation mechanism郾The rare earth elements distribution patterns of the tourmalite has weak negative Ce and negative Eu
anomalies, indicative of typical patterns of hydrothermal sediments郾The 啄18 O value of tourmalite is lower than other general hydrothermal sediment sili鄄
calites, and is probably the inherent feature of this kind of tourmalite deposits that formed in thermal sediment setting郾 |
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