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author:

罗坤 (罗坤.) [1] | 黎敦朋 (黎敦朋.) [2] | 肖爱芳 (肖爱芳.) [3] | 孔令添 (孔令添.) [4]

Abstract:

为研究福建李坊重晶石矿床硅质岩的成因和构造背景,对该矿床9件硅质岩样品进行了主量元素、稀土元素和微量元素地球化学分析。结果显示:重晶石化硅质岩富Al、Ti、Fe、Mn和Mg,顶板硅质岩富Al、Fe,贫Mn、Ti、Mg;重晶石化硅质岩和顶板硅质岩稀土元素含量均较低,且富集轻稀土元素,Eu呈弱负异常-正异常,Ce呈负异常-弱正异常; Ba、Sr、Rb和Th相对富集,Ta、Hf和Y相对亏损。李坊重晶石矿床中硅质岩为热水沉积成因,硅质岩在沉积过程中受陆源物质输入影响,形成于酸性氧化的大陆边缘构造环境。

Keyword:

地球化学特征 构造背景 热水沉积 硅质岩 福建李坊 重晶石矿床

Community:

  • [ 1 ] 福州大学紫金矿业学院

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Source :

华东地质

Year: 2019

Issue: 03

Volume: 40

Page: 216-225

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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