干旱区生态环境知识资源中心(Arid): Multiple enrichment of subcontinental lithospheric mantle with Archean to Mesozoic components: Evidence from the Chicheng ultramafic complex, North China Craton

Arid

DOI	10.1016/j.gr.2021.03.005
	Multiple enrichment of subcontinental lithospheric mantle with Archean to Mesozoic components: Evidence from the Chicheng ultramafic complex, North China Craton
	Yang, Fan; Kim, Sung Won; Tsunogae, Toshiaki; Zhou, Hongying
通讯作者	Yang, F (corresponding author), Lanzhou Univ, Sch Earth Sci, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China.
来源期刊	GONDWANA RESEARCH
ISSN	1342-937X
EISSN	1878-0571
出版年	2021
卷号	94 页码:201-221
英文摘要	Numerous Late Paleozoic to Early Mesozoic mafic-ultramafic intrusions occur along the northern margin of the North China Craton (NCC). The timing, magma source, genetic types and tectonic evolution of these intrusions still remain controversial. Herewe conduct a systematic petrological, mineral chemical, whole-rock geochemical, isotopic (zircon Lu-Hf and whole-rock Sr-Nd isotopes) and geochronological study on representative samples from the Chicheng ultramafic complex in the northern NCC, our results provide new insights into multiple melt-fluid interactions in the subcontinental lithospheric mantle through time. Zircon U-Pb data from the ultramafic rocks (pyroxenite and serpentinized dunite) show a wide range of ages (2721-129 Ma), indicating zircon growth within an evolving and metasomatized mantle wedge during multi-stage melt-fluid interactions. The youngest zircon population (145-129 Ma) possibly marks the timing of formation of the Chicheng ultramafic complex at the Early Cretaceous. Moreover, these ultramafic rocks also witnessed tectonic transition from Paleo-Asian Ocean to Paleo-Pacific Plate subduction during the Paleozoic to EarlyMesozoic and subsequent progressive lithospheric thinning and craton destruction at the northernmargin of the NCC, which is also attested by the newly discovered diorite porphyry dyke from this complex reported in this study with zircon U-Pb ages in the range of 447 to 128 Ma. Zircon Lu-Hf isotopic data show epsilon Hf(t) values in the range of -19.9 to +15.4 with TDM of 219-3012Ma and TDMC of 240-3650 Ma. Whole-rock Sr-Nd isotopic data display epsilon Nd(t) values ranging from -12.3 to-1.6, indicating heterogenous sources involving both depleted mantle and reworked ancient crustal components. Whole-rock geochemical data show enrichment in LILEs (Rb, Sr, Ba, Pb) and depletion in HFSEs (Nb, Ta, Ti), with positive anomalies at Ba, K, Pb andNd and strongly negative Zr and Ti anomalies, suggesting geochemical affinities related to subduction-related island arc setting within an active continental margin. Mineral chemical data on clinopyroxenes do not correspond to Alaskan-type affinities. Integrating geochemical, geochronological and isotopic studies from this study and those from previous studies related to the maficultramafic complexes in the northern Hebei Province along the northern margin of the NCC, we propose that these complexes might be composite plutons formed during the Early Cretaceous, which were derived from the interaction of melts and fluids released from subducted slab with metasomatized mantle peridotite, triggering different degree of partial melting of mantle wedge. (C) 2021 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
英文关键词	Geochemistry Zircon U-Pb-Lu-Hf and whole-rock Sr-Nd isotopes Subduction tectonics Chicheng ultramafic complex North China Craton
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000643561000003
WOS关键词	HF ISOTOPIC COMPOSITIONS ; ASIAN OROGENIC BELT ; TECTONIC EVOLUTION ; MAGMATIC ROCKS ; EASTERN DESERT ; BEISHAN AREA ; GEOCHEMISTRY ; SUBDUCTION ; ZONE ; ND
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350461
作者单位	[Yang, Fan] Lanzhou Univ, Sch Earth Sci, Key Lab Mineral Resources inWestern China Gansu P, Lanzhou 730000, Peoples R China; [Yang, Fan] China Univ Geosci Beijing, Sch Earth Sci & Resources, 29 Xueyuan Rd, Beijing 100083, Peoples R China; [Kim, Sung Won] Korea Inst Geosci & Mineral Resources, Geol Res Div, Daejeon 305350, South Korea; [Tsunogae, Toshiaki] Univ Tsukuba, Grad Sch Life & Environm Sci, Ibaraki 3058572, Japan; [Tsunogae, Toshiaki] Univ Johannesburg, Dept Geol, ZA-2006 Auckland Pk, South Africa; [Zhou, Hongying] Tianjin Ctr, China Geol Survey, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fan,Kim, Sung Won,Tsunogae, Toshiaki,et al. Multiple enrichment of subcontinental lithospheric mantle with Archean to Mesozoic components: Evidence from the Chicheng ultramafic complex, North China Craton[J]. 兰州大学,2021,94:201-221.
APA	Yang, Fan,Kim, Sung Won,Tsunogae, Toshiaki,&Zhou, Hongying.(2021).Multiple enrichment of subcontinental lithospheric mantle with Archean to Mesozoic components: Evidence from the Chicheng ultramafic complex, North China Craton.GONDWANA RESEARCH,94,201-221.
MLA	Yang, Fan,et al."Multiple enrichment of subcontinental lithospheric mantle with Archean to Mesozoic components: Evidence from the Chicheng ultramafic complex, North China Craton".GONDWANA RESEARCH 94(2021):201-221.