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贵州晴隆锑矿床成矿流体He-Ar同位素地球化学
陈娴; 苏文超; 黄勇
2016
Source Publication岩石学报
Issue11Pages:3312-3320
Abstract晴隆锑矿床是华南中生代低温成矿域右江盆地Au-Sb-As-Hg矿集区内的大型锑矿床,成矿时代约150Ma。本文以该矿床矿石矿物辉锑矿中的流体包裹体为测试对象,研究了成矿流体的He和Ar同位素地球化学。研究表明,成矿流体的3He/4He为0.130.46Ra(Ra为空气的3He/4He值,1.4×10-6),40Ar/36Ar为305327,He、Ar同位素组成具有一定程度的正相关;成矿流体由两个端元组成:一是含地壳He的低温饱和空气的雨水,二是含地幔He的高温流体。含地幔He的高温流体可能来自右江盆地下部的侏罗纪壳幔混合成因花岗岩浆,这种岩浆的形成机制与华夏地块侏罗纪与钨锡成矿有关的花岗岩具有相似性。晴隆锑矿床以大气降水为主的成矿流体的加热、循环并浸取矿床围岩"大厂层"下伏地层中的成矿元素而成矿,受深部壳幔混合成因花岗岩浆释放出的含幔源He和岩浆S的热流所驱动。
Keyword晴隆锑矿床 辉锑矿 流体包裹体 He和ar同位素 幔源he
Subject Area矿床地球化学
Indexed ByCSCD
Language中文
CSCD IDCSCD:5846917
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Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6592
Collection矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
陈娴,苏文超,黄勇. 贵州晴隆锑矿床成矿流体He-Ar同位素地球化学[J]. 岩石学报,2016(11):3312-3320.
APA 陈娴,苏文超,&黄勇.(2016).贵州晴隆锑矿床成矿流体He-Ar同位素地球化学.岩石学报(11),3312-3320.
MLA 陈娴,et al."贵州晴隆锑矿床成矿流体He-Ar同位素地球化学".岩石学报 .11(2016):3312-3320.
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