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四川拉拉铜矿床赋矿层位变质沉积岩地球化学特征
何德锋; 钟宏; 朱维光; 肖芳
2010
Source Publication地学前缘
Issue4Pages:218-226
Other Abstract拉拉铜矿区赋矿层位变质沉积岩的主量元素(ICV(av)=3.04,K2O/Al2O3(av)=0.22,CIA(av)=53.1)及Cs、Rb显著亏损特征,表明其物源区岩石只含有较少的粘土矿物和碱性长石,为中—低化学风化程度,且处于较不稳定的构造环境;多数样品的微量元素表现为显著富集高场强元素、亏损过渡族元素及Cr/Zr(av)=0.15、Th/Sc(av)=0.58,且具轻稀土富集、重稀土平坦((La/Yb)n(av)=25.7)的稀土元素配分模式,表明物源区以长英质组分为主;Sm、Nd同位素组成特征也显示其物源区以长英质组分为主,且沉积于大陆岛弧的弧后拉张环境。同时,结合矿区赋矿层位变钠质火山岩的构造判别结果,认为拉拉铜矿床也形成于该构造背景下。 
Keyword拉拉铜矿床 变质沉积岩 物源区 风化条件 构造背景
Subject Area矿床地球化学
Indexed ByCSCD
Language中文
CSCD IDCSCD:3901917
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6940
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
何德锋,钟宏,朱维光,等. 四川拉拉铜矿床赋矿层位变质沉积岩地球化学特征[J]. 地学前缘,2010(4):218-226.
APA 何德锋,钟宏,朱维光,&肖芳.(2010).四川拉拉铜矿床赋矿层位变质沉积岩地球化学特征.地学前缘(4),218-226.
MLA 何德锋,et al."四川拉拉铜矿床赋矿层位变质沉积岩地球化学特征".地学前缘 .4(2010):218-226.
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