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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Palaeoarchaean deep mantle heterogeneity recorded by enriched plume remnants

文献类型：期刊论文

作者Wang, Chao1,2; Song, Shuguang1; Wei, Chunjing1; Su, Li3,4; Allen, Mark B.5; Niu, Yaoling2,5; Li, Xian-Hua6; Dong, Jinlong1
刊名NATURE GEOSCIENCE
出版日期2019-08-01
卷号12期号:8页码:672-+
ISSN号1752-0894
DOI10.1038/s41561-019-0410-y
英文摘要The thermal and chemical state of the early Archaean deep mantle is poorly resolved due to the rare occurrences of early Archaean magnesium-rich volcanic rocks. In particular, it is not clear whether compositional heterogeneity existed in the early Archaean deep mantle and, if it did, how deep mantle heterogeneity formed. Here we present a geochronological and geochemical study on a Palaeoarchaean ultramafic-mafic suite (3.45-Gyr-old) with mantle plume signatures in Longwan, Eastern Hebei, the North China Craton. This suite consists of metamorphosed cumulates and basalts. The meta-basalts are iron rich and show the geochemical characteristics of present-day oceanic island basalt and unusually high mantle potential temperatures (1,675 degrees C), which suggests a deep mantle source enriched in iron and incompatible elements. The Longwan ultramafic-mafic suite is best interpreted as the remnants of a 3.45-Gyr-old enriched mantle plume. The first emergence of mantle-plume-related rocks on the Earth 3.5-3.45 billion years ago indicates that a global mantle plume event occurred with the onset of large-scale deep mantle convection in the Palaeoarchaean. Various deep mantle sources of these Palaeoarchaean mantle-plume-related rocks imply that significant compositional heterogeneity was present in the Palaeoarchaean deep mantle, most probably introduced by recycled crustal material.
WOS关键词LARGE IGNEOUS PROVINCES ; ARCHEAN MANTLE ; TRACE-ELEMENT ; U-PB ; GEOCHEMICAL EVIDENCE ; CONTINENTAL-CRUST ; GREENSTONE-BELT ; ZIRCON ; FERROPICRITES ; EVOLUTION
资助项目National Natural Science Foundation of China[41430207] ; National Natural Science Foundation of China[41572040] ; National Natural Science Foundation of China[41372060] ; Fundamental Research Funds for the Central Universities of China[2652018115] ; Chinese Scholarship Council[201606010063]
WOS研究方向Geology
语种英语
出版者NATURE PUBLISHING GROUP
WOS记录号WOS:000488119700001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Fundamental Research Funds for the Central Universities of China ; Chinese Scholarship Council ; Chinese Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Fundamental Research Funds for the Central Universities of China ; Chinese Scholarship Council ; Chinese Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Fundamental Research Funds for the Central Universities of China ; Chinese Scholarship Council ; Chinese Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; Fundamental Research Funds for the Central Universities of China ; Chinese Scholarship Council ; Chinese Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/93696]  
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Wang, Chao; Song, Shuguang
作者单位1.Peking Univ, Sch Earth & Space Sci, MOE Key Lab Orogen Belts & Crustal Evolut, Beijing, Peoples R China
2.China Univ Geosci, Sch Earth Sci & Resources, Beijing, Peoples R China
3.China Univ Geosci, Sch Sci Res, Beijing, Peoples R China
4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing, Peoples R China
5.Univ Durham, Dept Earth Sci, Durham, England
6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chao,Song, Shuguang,Wei, Chunjing,et al. Palaeoarchaean deep mantle heterogeneity recorded by enriched plume remnants[J]. NATURE GEOSCIENCE,2019,12(8):672-+.
APA Wang, Chao.,Song, Shuguang.,Wei, Chunjing.,Su, Li.,Allen, Mark B..,...&Dong, Jinlong.(2019).Palaeoarchaean deep mantle heterogeneity recorded by enriched plume remnants.NATURE GEOSCIENCE,12(8),672-+.
MLA Wang, Chao,et al."Palaeoarchaean deep mantle heterogeneity recorded by enriched plume remnants".NATURE GEOSCIENCE 12.8(2019):672-+.

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来源：地质与地球物理研究所

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