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Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab

文献类型：期刊论文

作者Xu, Cheng5; Kynicky, Jindrich3,4; Song, Wenlei3,4; Tao, Renbiao2,5; Lu, Zeng5; Li, Yunxiu5; Yang, Yueheng1; Pohanka, Miroslav3,4; Galiova, Michaela V.3,4; Zhang, Lifei5
刊名NATURE COMMUNICATIONS
出版日期2018-07-17
卷号9页码:8
ISSN号2041-1723
DOI10.1038/s41467-018-05140-5
英文摘要The absence of low-thermal gradients in old metamorphic rocks (< 350 degrees C GPa(-1)) has been used to argue for a fundamental change in the style of plate tectonics during the Neoproterozoic Era. Here, we report data from an eclogite xenolith in Paleoproterozoic carbonatite in the North China craton that argues for cold subduction as early as 1.8 Ga. The carbonatite has a sediment-derived C isotope signature and enriched initial Sr-Nd isotope composition, indicative of ocean-crust components in the source. The eclogite records peak metamorphic pressures of 2.5-2.8 GPa at 650-670 degrees C, indicating a cold thermal gradient, 250(+/- 15)degrees C GPa(-1). Our data, combined with old low-temperature events in the West African and North American cratons, reveal a global pattern that modern-style subduction may have been established during the Paleoproterozoic Era. Paleoproterozoic carbonatites are closely associated with granulites and eclogites in orogens worldwide, playing a critical role in the Columbia supercontinent amalgamation and deep carbon cycle through time.
WOS关键词NORTH CHINA CRATON ; HIGH-PRESSURE GRANULITES ; PLATE-TECTONICS ; RUTILE THERMOMETER ; MIXING PROPERTIES ; EVOLUTION ; GEOCHEMISTRY ; ECLOGITES ; PETROLOGY ; CRUST
资助项目Chinese National Natural Science Foundation[41773022] ; Chinese National Natural Science Foundation[41688103] ; Chinese National Natural Science Foundation[41520104004] ; Czechic CEITEC 2020[LQ1601] ; National Science Foundation Geochemistry grant[EAR-1447311]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PUBLISHING GROUP
WOS记录号WOS:000438857400012
资助机构Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Czechic CEITEC 2020 ; Czechic CEITEC 2020 ; National Science Foundation Geochemistry grant ; National Science Foundation Geochemistry grant ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Czechic CEITEC 2020 ; Czechic CEITEC 2020 ; National Science Foundation Geochemistry grant ; National Science Foundation Geochemistry grant ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Czechic CEITEC 2020 ; Czechic CEITEC 2020 ; National Science Foundation Geochemistry grant ; National Science Foundation Geochemistry grant ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Czechic CEITEC 2020 ; Czechic CEITEC 2020 ; National Science Foundation Geochemistry grant ; National Science Foundation Geochemistry grant
源URL[http://ir.iggcas.ac.cn/handle/132A11/94023]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_科技支撑系统
通讯作者Xu, Cheng; Zhang, Lifei; Fei, Yingwei
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Carnegie Inst Sci, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA
3.Brno Univ Technol, Cent European Inst Technol, Brno 61600, Czech Republic
4.Mendel Univ Brno, Dept Geol & Pedol, Brno 61300, Czech Republic
5.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Cheng,Kynicky, Jindrich,Song, Wenlei,et al. Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab[J]. NATURE COMMUNICATIONS,2018,9:8.
APA Xu, Cheng.,Kynicky, Jindrich.,Song, Wenlei.,Tao, Renbiao.,Lu, Zeng.,...&Fei, Yingwei.(2018).Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab.NATURE COMMUNICATIONS,9,8.
MLA Xu, Cheng,et al."Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab".NATURE COMMUNICATIONS 9(2018):8.

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来源：地质与地球物理研究所

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