中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Rare-earth element geochemistry of eclogites from the ultra-high pressure metamorphic belt in central China

文献类型:期刊论文

作者Huang Zhilong;  Liu Congqiang;  Hu Yaoguo;  Zhu Jianming;  Xiao Huayun;  Xu Cheng
刊名Chinese Journal of Geochemistry
出版日期2000
卷号19期号:1页码:35-44
关键词Ultra-high Metamorphic Belt Eclogite Ree Geochemistry Central China
英文摘要

Based on their REE contents and REE patterns, eclogites from the ultra-high pressure metamorphic belt in central China may be roughly divided into six types including LREE-rich, LREE-rich + positive Eu anomaly, LREE-rich + negative Eu anomaly, REE patternsmooth, MREE-rich and HREE-rich. The LREE-rich, LREE-rich + positive Eu anomaly and LREE-rich + negative Eu anomaly types of eclogites are dominant. REE types of eclogites in different areas can be compared and the REE features of the same REE type of eclogites in different areas are similar. The results of reconstruction of the primary rocks show that the primary rocks of eclogites possibly are dominated by continental tholeiites which are the product of partial melting of relatively fertile mantle and the rocks of tholeiite crystallization-differentiation. There is perfect evolution relationship among the primary rocks of the LREE-rich, LREE-rich + positive Eu anomaly and LREE-rich + negative Eu anomaly types of eclogites and among those of the REE pattern smooth and MREE-rich types of eclogites, the former three types were derived from continental settings and the latter two from nearly oceanic settings. Meanwhile, it is concluded that the mantle sources of primary rocks of the eclogites are inhomogeneous and the primary rocks of eclogites in this area appear to have undergone varying degree of crustal contamination.

语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/8333]  
专题地球化学研究所_矿床地球化学国家重点实验室
作者单位Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences, Guiyang 550002, China
推荐引用方式
GB/T 7714
Huang Zhilong;Liu Congqiang;Hu Yaoguo;Zhu Jianming;Xiao Huayun;Xu Cheng. Rare-earth element geochemistry of eclogites from the ultra-high pressure metamorphic belt in central China[J]. Chinese Journal of Geochemistry,2000,19(1):35-44.
APA Huang Zhilong;Liu Congqiang;Hu Yaoguo;Zhu Jianming;Xiao Huayun;Xu Cheng.(2000).Rare-earth element geochemistry of eclogites from the ultra-high pressure metamorphic belt in central China.Chinese Journal of Geochemistry,19(1),35-44.
MLA Huang Zhilong;Liu Congqiang;Hu Yaoguo;Zhu Jianming;Xiao Huayun;Xu Cheng."Rare-earth element geochemistry of eclogites from the ultra-high pressure metamorphic belt in central China".Chinese Journal of Geochemistry 19.1(2000):35-44.

入库方式: OAI收割

来源:地球化学研究所

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