Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab

doi:10.1038/s41467-018-05140-5

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab
	Xu, Cheng 5; Kynicky, Jindrich 3,4; Song, Wenlei 3,4; Tao, Renbiao 2,5; Lu, Zeng 5; Li, Yunxiu 5; Yang, Yueheng 1; Pohanka, Miroslav 3,4; Galiova, Michaela V.3,4; Zhang, Lifei 5
刊名	NATURE COMMUNICATIONS
	2018-07-17
卷号	9 页码:8
ISSN号	2041-1723
DOI	10.1038/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.
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关键词	NORTH CHINA CRATON ; HIGH-PRESSURE GRANULITES ; PLATE-TECTONICS ; RUTILE THERMOMETER ; MIXING PROPERTIES ; EVOLUTION ; GEOCHEMISTRY ; ECLOGITES ; PETROLOGY ; CRUST
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
内容类型	期刊论文
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
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.