Archean-Paleoproterozoic Lithospheric Mantle at the Northern Margin of the North China Craton Represented by Tectonically Exhumed Peridotites

doi:10.1111/1755-6724.13449

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

	Archean-Paleoproterozoic Lithospheric Mantle at the Northern Margin of the North China Craton Represented by Tectonically Exhumed Peridotites
	Tian, Wei 1; Wang, Shuangyue 1; Liu, Fenglin 1; Chu, Zhuyin 2; Wang, Bin 1; Chen, Mimi 2,3; Prichard, Jennifer 3
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2017-12-01
卷号	91 期号:6 页码:2041-2057
关键词	Harzburgite Boninite Re-os Isotopes Lithospheric Mantle Paleoproterozoic North China Craton
ISSN号	1000-9515
DOI	10.1111/1755-6724.13449
文献子类	Article
英文摘要	Tectonically emplaced peridotites from North Hebei Province, North China Craton, have retained an original harzburgite mineral assemblage of olivine (54%-58%) + orthopyroxene (40%-46%) +minor clinopyroxene (<1%)+spinel. Samples with boninite-like chemical compositions also coexist with these peridotites. The spinels within the peridotites have high-Al end-members with Al2O3 content of 30 wt%-50 wt%, typical of mantle spinels. When compared with experimentally determined melt extraction trajectories, the harzburgites display a high degree of melting and enrichment of SiO2, which is typical of cratonic mantle peridotites. The peridotites display variably enriched light rare earth elements (REEs), relatively depleted middle REEs and weakly fractionated heavy REEs, which suggest a melt extraction of over 25% in the spinel stability field. The occurrence of arc- and SSZ-type chromian spinels in the peridotites suggests that melt extraction and metasomatism occurred mostly in a subduction-related setting. This is also supported by the geochemical data of the coexisting boninite-like samples. The peridotites have Os-187/Os-188 ratios ranging from 0.113-0.122, which is typical of cratonic lithospheric mantle. These Os-187/Os-188 ratios yield model melt extraction ages (T-RD) ranging from 981 Ma to 2054 Ma, which may represent the minimum estimation of the melt extraction age. The Al2O3-Os-187/Os-188-proxy isochron ages of 2.4 Ga-2.7 Ga suggest a mantle melt depletion age between the Late Achaean and Early Paleoproterozoic. Both the peridotites and boninite-like rocks are therefore interpreted as tectonically exhumed continental lithospheric mantle of the North China Craton, which has experienced mantle melt depletion and subduction-related mantle metasomatism during the Neoarchean- Paleoproterozoic.
WOS关键词	PALEOZOIC RETROGRADED ECLOGITES ; SPINEL OXYGEN GEOBAROMETER ; TRACE-ELEMENT COMPOSITIONS ; BENEATH MIDOCEAN RIDGES ; PLATINUM-GROUP ELEMENTS ; ABYSSAL PERIDOTITES ; EASTERN CHINA ; GEOLOGICAL SIGNIFICANCE ; SUBCONTINENTAL MANTLE ; OROGENIC PERIDOTITE
WOS研究方向	Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000418844800012
资助机构	NSFC(41430207 ; NSFC(41430207 ; China Postdoctoral Science Foundation(2016M591246) ; China Postdoctoral Science Foundation(2016M591246) ; 41602340) ; 41602340) ; NSFC(41430207 ; NSFC(41430207 ; China Postdoctoral Science Foundation(2016M591246) ; China Postdoctoral Science Foundation(2016M591246) ; 41602340) ; 41602340) ; NSFC(41430207 ; NSFC(41430207 ; China Postdoctoral Science Foundation(2016M591246) ; China Postdoctoral Science Foundation(2016M591246) ; 41602340) ; 41602340) ; NSFC(41430207 ; NSFC(41430207 ; China Postdoctoral Science Foundation(2016M591246) ; China Postdoctoral Science Foundation(2016M591246) ; 41602340) ; 41602340)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93139]
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	Tian, Wei
作者单位	1.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, MOE, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Australian Natl Univ, Res Sch Earth & Space Sci, Canberra, ACT 0200, Australia
推荐引用方式 GB/T 7714	Tian, Wei,Wang, Shuangyue,Liu, Fenglin,et al. Archean-Paleoproterozoic Lithospheric Mantle at the Northern Margin of the North China Craton Represented by Tectonically Exhumed Peridotites[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2017,91(6):2041-2057.
APA	Tian, Wei.,Wang, Shuangyue.,Liu, Fenglin.,Chu, Zhuyin.,Wang, Bin.,...&Prichard, Jennifer.(2017).Archean-Paleoproterozoic Lithospheric Mantle at the Northern Margin of the North China Craton Represented by Tectonically Exhumed Peridotites.ACTA GEOLOGICA SINICA-ENGLISH EDITION,91(6),2041-2057.
MLA	Tian, Wei,et al."Archean-Paleoproterozoic Lithospheric Mantle at the Northern Margin of the North China Craton Represented by Tectonically Exhumed Peridotites".ACTA GEOLOGICA SINICA-ENGLISH EDITION 91.6(2017):2041-2057.