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Composition of the lithospheric mantle in the northern part of Siberian craton: Constraints from peridotites in the Obnazhennaya kimberlite

文献类型：期刊论文

作者Sun, Jing1,2,3; Liu, Chuan-Zhou2; Kostrovisky, Sergey I.4; Wu, Fu-Yuan2; Yang, Jin-Hui2; Chu, Zhu-Yin2; Yang, Yue-Heng2; Kalashnikova, Tatiana4; Fan, Sheng3
刊名LITHOS
出版日期2017-12-01
卷号294页码:383-396
关键词Siberian Craton Lithospheric Mantle Peridotite Xenoliths Metasomatism Re-os Isotopes Platinum Group Elements
ISSN号0024-4937
DOI10.1016/j.lithos.2017.10.010
文献子类Article
英文摘要The character of the lithospheric mantle of the northern Siberian craton is not well established; nearly all published data are for mantle xenoliths from a single kimberlite in the center of the craton (Udachnaya). We report major elements of the whole rock, trace elements data of clinopyroxene and Re-Os isotope and PGE concentration of mantle xenoliths from the Obnazhennaya kimberlite pipe (160 Ma) in the northern part of Siberian craton. The Obnazhennaya mantle xenoliths include spinel harzburgites, spinel dunites, spinel lherzolites and spinelgarnet lherzolite. The spinel harzburgites and dunites have refractory compositions, with 0.23-1.35 wt% Al2O3, 0.41-3.11 wt% CaO and 0.00-0.09 wt% TiO2, whereas the lherzolites (both spinel- and spinel-garnet-) have more fertile compositions, containing 2.16-6.55 wt% Al2O3, 2.91-7.55 wt% CaO and 0.04-0.15 wt% TiO2. The trace element compositions and mineralogical textures of the Obnazhennaya xenoliths indicate the occurrence of metasomatic enrichments, including carbonatite melts, basaltic melts from Siberian Trap and kimberlitic melts. The spinel harzburgites and dunites have Os-187/Os-188 of 0.11227-0.11637, giving a T-RD age of 1.6-2.2 Ga. This suggests that old cratonic mantle still existed beneath the Obnazhennaya. In contrast, both spinel and spinel-garnet Iherzolites have more radiogenic Os-187/Os-188 ratios (0.11931-0.17627), enriched P-PGEs. But the higher Al2O3 and Os character of these lherzolites suggest that they were not juvenile mantle but the refertilized ancient mantle. Therefore, our results suggest that the cratonic mantle beneath the northern part of Siberian craton contain both ancient and reworked lithospheric mantle, and the metasomatism may not be effective at overprinting/eroding the pre-existing lithosphere. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词OCEANIC UPPER-MANTLE ; OS ISOTOPE SYSTEMATICS ; PRIMITIVE UPPER-MANTLE ; RE-OS ; CHINA CRATON ; ABYSSAL PERIDOTITES ; TRACE-ELEMENT ; CARBONATITE METASOMATISM ; ULTRAMAFIC XENOLITHS ; UDACHNAYA KIMBERLITE
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000418970800023
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; National Natural Science Foundation of China(41602045) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021) ; Science Foundation of China University of Petroleum, Beijing(2462015YJRC021)
源URL[http://ir.iggcas.ac.cn/handle/132A11/93138]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Sun, Jing
作者单位1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China
4.Russian Acad Sci, Inst Geochem, Siberian Branch, Irkutsk, Russia
推荐引用方式
GB/T 7714		 Sun, Jing,Liu, Chuan-Zhou,Kostrovisky, Sergey I.,et al. Composition of the lithospheric mantle in the northern part of Siberian craton: Constraints from peridotites in the Obnazhennaya kimberlite[J]. LITHOS,2017,294:383-396.
APA Sun, Jing.,Liu, Chuan-Zhou.,Kostrovisky, Sergey I..,Wu, Fu-Yuan.,Yang, Jin-Hui.,...&Fan, Sheng.(2017).Composition of the lithospheric mantle in the northern part of Siberian craton: Constraints from peridotites in the Obnazhennaya kimberlite.LITHOS,294,383-396.
MLA Sun, Jing,et al."Composition of the lithospheric mantle in the northern part of Siberian craton: Constraints from peridotites in the Obnazhennaya kimberlite".LITHOS 294(2017):383-396.

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来源：地质与地球物理研究所

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