| 官田浅成低温水热脉状黄铁矿矿床地球化学及其成矿作用 |
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| 引用本文： | 黄富荣,夏学惠.官田浅成低温水热脉状黄铁矿矿床地球化学及其成矿作用[J].化工矿产地质,1997,19(1):19-25. |
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| 作者姓名： | 黄富荣 夏学惠 |
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| 作者单位： | 化学工业部化学矿产地质研究院 |
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| 摘 要： | 根据流体包裹体特征、同位素组成等，认为官田黄铁矿矿床成矿压力小于１００ｂａｒ，成矿热流体温度低于２２０～２４０℃，盐度低于１２％（ｗｔ），ｐＨ为４．４～５．８，Ｅｈ为－０．５，ｆＯ２值小于１０－２５ｂａｒ，因此其成因类型为浅成低温水热脉状黄铁矿矿床。交代充填作用形成黄铁矿，不同性质的溶液在运移途中相遇，造成其它成矿元素的淀积，大气降水具双重成矿作用。
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| 关 键 词： | 地球化学条件 交代充填 再平衡岩浆水 大气降水 元素淀积 |
MAIN TYPES OF RUTILE DEPOSITS ON THE EASTERN PART OF QINLING MOUNTAINS:GEOCHEMISTRY OF RARE EARTH ELEMENTS |
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| Li Boyun,Qian Ziqiang,Xu Shaokang,Zhou Jianmin,Yang Liuping.MAIN TYPES OF RUTILE DEPOSITS ON THE EASTERN PART OF QINLING MOUNTAINS:GEOCHEMISTRY OF RARE EARTH ELEMENTS[J].Geology of Chemical Minerals,1997,19(1):19-25. |
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| Authors: | Li Boyun Qian Ziqiang Xu Shaokang Zhou Jianmin Yang Liuping |
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| Abstract: | On the eastern part of Qingling mountains,main types of rutile deposits owed their geneses to metamorphizm of different scales.Four known main types are varying from one to another in ΣREE,LREE/HREE,and δ Eu values according togeochemical analysis of REE and protolith reconstruction of primary rocks.Relation of Ti concentration to abundance of REE reveals that no matter what type a deposit is,the more abundant the REE was,the more completely the light and heavy REEs differentiated,the higher the δ Eu was,and the easier the Ti concentrated. |
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| Keywords: | rutile metamorphism rare earth element Ti concentration |
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