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  4. 岩石圈演化国家重点实验室
Three-stage modification of lithospheric mantle: Evidence from petrology, in-situ trace elements, and Sr isotopes of mantle xenoliths in the Cenozoic basalts, northeastern North China Craton

文献类型：期刊论文

作者Xu, Xinran1,2,3; Tang, Yanjie1,2,3; Ying, Jifeng1,2,3; Zhao, Xinmiao1,2; Xiao, Yan1,2
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2022-05-01
卷号134期号:5-6页码:1247-1257
ISSN号0016-7606
DOI10.1130/B36140.1
英文摘要We present mineralogical and geochemical compositions of mantle xenoliths from two Cenozoic basalt localities of the northeastern North China Craton. These xenoliths include lherzolite, harzburgite, and websterite. They are generally fertile in major elements and different from the typical cratonic lithosphere, which is consistent with previous hypotheses regarding craton destruction. The ratios of Sr-87/Sr-86 and (La/Yb)(N) of clinopyroxenes (Cpx) in one lherzolite are relatively low in the core but high in the rim. The center of the Cpx grain has a high U concentration. Changes in trace elements and Sr isotopes indicate that later stage high Sr-87/Sr-86 melt metasomatism superimposed on the early hydrous melt/fluid. The Cpxs in some xenoliths are low in Ti/Eu but high in Ca/Al and light rare earth elements, which indicates carbonate melt metasomatism. Sr-87/Sr-86 is increased in the core and decreased in the rim of most Cpx grains, which reflects the superposition of two-stage metasomatism. The early agent should be high in Sr-87/Sr-86, and the recent agent should be low in Sr-87/Sr-86. The Cpxs in olivine websterite are low in Sr-87/Sr-86 (0.70220-0.70320), which reflects the recent metasomatism of asthenosphere-derived melt. Collectively, these observations reflect a three-stage modification of the lithospheric mantle. First-stage hydrous melt/fluid could come from the dehydration of young subducted plates. Second-stage melt/fluid of high Sr-87/Sr-86 could derive from the partial melting of the subducted altered oceanic crust, and the recent melt/fluid of low Sr-87/Sr-86 should be from the asthenosphere.
WOS关键词SINO-KOREAN CRATON ; SPINEL PERIDOTITE XENOLITHS ; EASTERN CHINA ; CARBONATITE METASOMATISM ; BENEATH ; REFERTILIZATION ; EVOLUTION ; MELT ; DESTRUCTION ; CRUST
资助项目National Natural Science Foundation of China[41725014] ; National Natural Science Foundation of China[41688103] ; National Key R&D Program of China[2016YFC0600109]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:000797134500003
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105936]  
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Tang, Yanjie
作者单位1.Innovat Acad Earth Sci, Chinese Acad Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Xinran,Tang, Yanjie,Ying, Jifeng,et al. Three-stage modification of lithospheric mantle: Evidence from petrology, in-situ trace elements, and Sr isotopes of mantle xenoliths in the Cenozoic basalts, northeastern North China Craton[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2022,134(5-6):1247-1257.
APA Xu, Xinran,Tang, Yanjie,Ying, Jifeng,Zhao, Xinmiao,&Xiao, Yan.(2022).Three-stage modification of lithospheric mantle: Evidence from petrology, in-situ trace elements, and Sr isotopes of mantle xenoliths in the Cenozoic basalts, northeastern North China Craton.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,134(5-6),1247-1257.
MLA Xu, Xinran,et al."Three-stage modification of lithospheric mantle: Evidence from petrology, in-situ trace elements, and Sr isotopes of mantle xenoliths in the Cenozoic basalts, northeastern North China Craton".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 134.5-6(2022):1247-1257.

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来源：地质与地球物理研究所

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