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Architecture and evolution of the lithospheric roots beneath circum-cratonic orogenic belts-The Xing'an Mongolia Orogenic Belt and its relationship with adjacent North China and Siberian cratonic roots

文献类型：期刊论文

作者Tian, Gongcheng6; Liu, Jingao6; Scott, James M.5; Chen, Li-Hui4; Pearson, D. Graham3; Chu, Zhuyin2; Wang, Zaicong1; Luo, Yan3
刊名LITHOS
出版日期2020-12-01
卷号376页码:17
关键词Xing'an-Mongolia Orogenic Belt Mantle xenoliths Os isotopes Highly siderophile elements Recycled mantle fragments
ISSN号0024-4937
DOI10.1016/j.lithos.2020.105798
英文摘要The accretionary mobile belts surrounding ancient cratonic cores are an important facet of the growth and preservation of continental landmasses. Peridotites from Nuominhe in the Xing'an Mongolia Orogenic Belt (XMOB) provide an additional opportunity to examine the age, structure and evolution of mantle lithosphere separating two of the largest existing ancient continental nuclei: the North China Craton and the Siberian Craton. This suite of mantle rocks comprises fertile to refractory garnet- and spinel-facies harzburgites and lherzolites. Their lithophile element systematics show that the peridotites were metasomatized to variable extent by silicate-carbonate melts. Despite this, the highly siderophile element and Os isotope systematics appear to have been largely undisturbed. The Nuominhe peridotites have Re-depletion Os model ages (T-RD) that range from 0.5 Ga to 2.4 Ga, with three peaks/major ranges at similar to 2.0-2.4 Ga, similar to 1.4-1.5 Ga and similar to 0.8 Ga, ofwhich the latter two are closely similar to those data fromother XMOB localities reported in the literature. The only section of the mantle that appears to have ageswhich correlatewith crust formation is the suitewith Neoproterozoic (similar to 0.8 Ga) depletion ages, while the older mantle domains document older episodes of mantle depletion. Given the lack of correlation between equilibriumtemperatures and bulk composition or TRD ages, the Nuominhe peridotiteswere inter-mixed in the mantle column, most likely as a result of incorporation of recycled older continental mantle fragments into juvenile Neoproterozoic mantle during the orogenic processes responsible for new lithosphere formation. Geothermobarometry of the Nuominhe peridotites indicates a conductive geotherm of similar to 60 mWm(-2) and therefore a lithosphere thickness of similar to 125 km, which is thicker than most Phanerozoic continental terranes, and even thicker than Proterozoic regions that comprise the larger cratonic unit of the Siberian craton. This thick Proterozoic lithosphere sandwiched between the converging North China and Siberian cratonswas evidently partly constructed from recycled refractory continental mantle fragments, perhaps extant in the convecting mantle, or in-part derived fromthe surrounding cratons, leading to a composite nature of themantle in this re-healed continental suture. Re-accretion of recycled refractory old continentalmantle fragments plays a significant role in affecting mantle composition and controlling the thickness of circum-cratonic landmasses between cratonic blocks. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词SPINEL PERIDOTITE XENOLITHS ; PLATINUM-GROUP ELEMENTS ; HIGHLY SIDEROPHILE ELEMENTS ; RE-OS ISOTOPE ; MONOSULFIDE SOLID-SOLUTION ; ASIAN FOLD BELT ; A-TYPE GRANITES ; SR-ND ISOTOPE ; MANTLE BENEATH ; EASTERN CHINA
资助项目National Natural Science Foundation of China[41822301] ; National Natural Science Foundation of China[41790451] ; National Natural Science Foundation of China[41730214] ; China "1000 Youth Talents Program" ; 111 project[B18048] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0801] ; Chinese National Space Administration[D 020202]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000580897000048
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; China "1000 Youth Talents Program" ; China "1000 Youth Talents Program" ; 111 project ; 111 project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese National Space Administration ; Chinese National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China "1000 Youth Talents Program" ; China "1000 Youth Talents Program" ; 111 project ; 111 project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese National Space Administration ; Chinese National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China "1000 Youth Talents Program" ; China "1000 Youth Talents Program" ; 111 project ; 111 project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese National Space Administration ; Chinese National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China "1000 Youth Talents Program" ; China "1000 Youth Talents Program" ; 111 project ; 111 project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese National Space Administration ; Chinese National Space Administration
源URL[http://ir.iggcas.ac.cn/handle/132A11/98701]  
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Liu, Jingao
作者单位1.China Univ Geosci, Tate Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada
4.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China
5.Univ Otago, Dept Geol, Dunedin 9054, New Zealand
6.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Gongcheng,Liu, Jingao,Scott, James M.,et al. Architecture and evolution of the lithospheric roots beneath circum-cratonic orogenic belts-The Xing'an Mongolia Orogenic Belt and its relationship with adjacent North China and Siberian cratonic roots[J]. LITHOS,2020,376:17.
APA Tian, Gongcheng.,Liu, Jingao.,Scott, James M..,Chen, Li-Hui.,Pearson, D. Graham.,...&Luo, Yan.(2020).Architecture and evolution of the lithospheric roots beneath circum-cratonic orogenic belts-The Xing'an Mongolia Orogenic Belt and its relationship with adjacent North China and Siberian cratonic roots.LITHOS,376,17.
MLA Tian, Gongcheng,et al."Architecture and evolution of the lithospheric roots beneath circum-cratonic orogenic belts-The Xing'an Mongolia Orogenic Belt and its relationship with adjacent North China and Siberian cratonic roots".LITHOS 376(2020):17.

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