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攀西地区峨眉山玄武岩的铂族元素地球化学特征
钟宏; 朱维光; 漆亮; 周美夫; 宋谢炎; 张贻
Corresponding Author钟宏
2006
Source Publication科学通报
Volume51Issue:11Pages:1297-1304
metadata_24其它
Abstract攀西地区龙帚山和二滩玄武岩形成于较低程度地幔部分熔融条件(<7%),部分熔融过程中Ir,Ru和Rh表现其相容性而Pt和Pd为不相容元素.这些样品多含较高的铂族元素(PGE),其Pd/Ir和Cu/Pd比值远高于原始地幔值.部分熔融过程中有少量硫化物(约0.007%)残留于地幔源区,岩浆上升过程中则有部分岩浆达到硫饱和而分离出富集PGE的硫化物(约0.020%~0.033%).Os,Ir和Pt在结晶分异过程中形成铂族金属合金进入铬铁矿或硫化物,导致Pt和Pd的解耦及Ir含量出现很大变化.玄武质岩浆中熔离出的硫化物可能为邻近喷发通道的镁铁-超镁铁质岩体形成Cu-Ni-PGE矿床(化)提供重要的物质来源.
Keyword玄武岩
Subject Area中国典型特殊区带大规模成矿作用及其动力学
Indexed BySCI
Language中文
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/166
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
矿床地球化学国家重点实验室
Corresponding Author钟宏
Recommended Citation
GB/T 7714
钟宏,朱维光,漆亮,等. 攀西地区峨眉山玄武岩的铂族元素地球化学特征[J]. 科学通报,2006,51(11):1297-1304.
APA 钟宏,朱维光,漆亮,周美夫,宋谢炎,&张贻.(2006).攀西地区峨眉山玄武岩的铂族元素地球化学特征.科学通报,51(11),1297-1304.
MLA 钟宏,et al."攀西地区峨眉山玄武岩的铂族元素地球化学特征".科学通报 51.11(2006):1297-1304.
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