中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton

文献类型:期刊论文

作者Chu, Zhu-Yin1; Wu, Fu-Yuan1; Walker, Richard J.2; Rudnick, Roberta L.2; Pitcher, Lynnette2; Puchtel, Igor S.2; Yang, Yue-Heng1; Wilde, Simon A.3
刊名JOURNAL OF PETROLOGY
出版日期2009-10-01
卷号50期号:10页码:1857-1898
关键词Cenozoic isotopes lithospheric mantle Sm-Nd, Rb-Sr, Lu-Hf North China Craton Paleozoic platinum-group elements (PGE) Re-Os
ISSN号0022-3530
文献子类Review
英文摘要It is now well established that lithospheric thinning of the eastern North China Craton (NCC) occurred during the Phanerozoic. The cause and extent of the thinning.. however. remains highly debated. In this study, mantle xenoliths from the Cenozoic Penglai and along with xenoliths from the Cenozoic Penglai and Shanwang basalts in Shandong Province, are investigated via traditional petrographic and elemental, Sr-Nd-Hf-Os isotopic and platinum-group element (PGE) analyses. Late Archean Os model ages of c. 2.5 Go for the Mengyin peridotites provide confirmation that refractory., Archean lithospheric mantle existed beneath the easternmost Portion of the NCC during the Paleozoic. Some Paleoproterozoic lithospheric mantle fragments may also be present in the Mengyin xenolith suite. In contrast, the spatially, associated Penglai and Shanwang peridotite xenoliths are more fertile, and have Sr-Nd isotopic compositions similar to the depleted mantle. The), differ dramatically from the Archean peridotites sampled by the Mengyin kimberlites. Osmium model ages for single samples range from mid-Proterozoic to modern, similar to variations observed in Phanerozoic convecting tipper mantle (is sampled by modern abyssal peridotites. This suggests that the present lithospheric mantle beneath the eastern NCC formed in the Phanerozoic, despite the fact that Os model ages extend back to the Proterozoic. Some samples front the Penglai suite yield Proterozoic Lu-Hf clinopyroxene mineral isochron ages that are consistent with the Os model ages, suggesting that Hf isotopes in modern convective zipper mantle call preserve evidence for ancient well, depletion, similar to Os isotopes. Our results are consistent with thinning of the eastern NCC as a result of foundering of the deep crust and lithospheric mantle, but are inconsistent with stretching or refertilization models, as remnants of Archean mantle are expected to be present I'll these scenarios. The match between (187)Os/(188)Os in convective tipper mantle and the eastern China lithopspheric mantle also precludes models that seek to explain the present lithosphere as being due to lateral translation of Proterozoic lithosphere.
WOS关键词RE-OS ISOTOPES ; SPINEL PERIDOTITE XENOLITHS ; SINO-KOREAN CRATON ; ZIRCON U-PB ; IONIZATION MASS-SPECTROMETRY ; CONVERGENT PLATE MARGIN ; MIDOCEAN RIDGE BASALTS ; ABYSSAL PERIDOTITES ; MELT PERCOLATION ; ICP-MS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000271577800003
出版者OXFORD UNIV PRESS
资助机构National Natural Science Foundation of China (NSFC)(40634019) ; National Natural Science Foundation of China (NSFC)(40634019) ; US National Science Foundation(EAR 0635671) ; US National Science Foundation(EAR 0635671) ; National Natural Science Foundation of China (NSFC)(40634019) ; National Natural Science Foundation of China (NSFC)(40634019) ; US National Science Foundation(EAR 0635671) ; US National Science Foundation(EAR 0635671) ; National Natural Science Foundation of China (NSFC)(40634019) ; National Natural Science Foundation of China (NSFC)(40634019) ; US National Science Foundation(EAR 0635671) ; US National Science Foundation(EAR 0635671) ; National Natural Science Foundation of China (NSFC)(40634019) ; National Natural Science Foundation of China (NSFC)(40634019) ; US National Science Foundation(EAR 0635671) ; US National Science Foundation(EAR 0635671)
源URL[http://ir.iggcas.ac.cn/handle/132A11/70344]  
专题中国科学院地质与地球物理研究所
通讯作者Chu, Zhu-Yin
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosper Evolut, Beijing 100029, Peoples R China
2.Univ Maryland, Dept Geol, Isotope Geochem Lab, College Pk, MD 20742 USA
3.Curtin Univ Technol, Dept Appl Geol, Perth, WA 6845, Australia
推荐引用方式
GB/T 7714
Chu, Zhu-Yin,Wu, Fu-Yuan,Walker, Richard J.,et al. Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton[J]. JOURNAL OF PETROLOGY,2009,50(10):1857-1898.
APA Chu, Zhu-Yin.,Wu, Fu-Yuan.,Walker, Richard J..,Rudnick, Roberta L..,Pitcher, Lynnette.,...&Wilde, Simon A..(2009).Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton.JOURNAL OF PETROLOGY,50(10),1857-1898.
MLA Chu, Zhu-Yin,et al."Temporal Evolution of the Lithospheric Mantle beneath the Eastern North China Craton".JOURNAL OF PETROLOGY 50.10(2009):1857-1898.

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来源:地质与地球物理研究所

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