气候变化领域集成服务门户(CCPortal): Neoproterozoic-Mesozoic Tectono-Magmatic evolution of the northern Dabie Orogen, eastern China

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DOI	10.1016/j.jseaes.2022.105138
	Neoproterozoic-Mesozoic Tectono-Magmatic evolution of the northern Dabie Orogen, eastern China
	Tuo, Jianchao; Wu, Chen; Wang, Guosheng; Wu, Jiangwei; Zhou, Zhiguang; Li, Jialiang; Haproff, Peter J.
通讯作者	Wu, C (通讯作者)
发表日期	2022
ISSN	1367-9120
EISSN	1878-5786
卷号	228
英文摘要	The Dabie orogen was generated by the Late Triassic collision of the North China and South China continents and is important for understanding (ultra)high-pressure metamorphism related to continental subduction. The peak (ultra)high-pressure metamorphism related to this collisional event was followed by Late Jurassic to Early Cretaceous magmatism that generated widespread igneous rocks throughout eastern China. Despite numerous studies on these events during the evolution of the Dabie orogen, other critical issues concern the nature of Proterozoic basement rocks and the Mesozoic tectono-magmatic evolution of the orogen. In this contribution, we synthesize field relationships, crystallization and depositional ages, elemental and Sr-Nd isotopic analyses from the Shangcheng area of the northern Dabie orogen. Our study demonstrates that the northern Dabie orogen contains mid-Neoproterozoic crystalline basement composed of ca. 767-733 Ma granitoids that resemble those of the Yangtze craton. Based on detrital zircons ages, we interpret that the North China continent and Yangtze craton of the South China continent were linked in the Devonian. This was followed by opening of an ocean basin between the continents in the Carboniferous and subsequent ocean closure by Jurassic time. Emplacement of ca. 137-130 Ma adakites in the Dabie orogen is interpreted to be related to regional crustal thickening. This crustal thickening phase was followed by emplacement of ca. 130-121 Ma intermediate igneous rocks during regional extension, which is supported by paleo-crustal thickness trends and the presence of an unconformity between the Cretaceous Shangcheng pluton and overlying volcanic rocks of the Jingangtai Formation.
关键词	A-TYPE GRANITES PRESSURE METAMORPHIC ROCKS U-PB AGE ADAKITIC INTRUSIVE ROCKS SLAB-DERIVED MELTS SOUTH CHINA CONTINENTAL-CRUST GEOCHEMICAL CHARACTERISTICS TRACE-ELEMENT TECTONIC EVOLUTION
英文关键词	Northern Dabie orogen; Yangtze; Neoproterozoic; Cretaceous; Adakitic rock
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000806635000001
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260657
推荐引用方式 GB/T 7714	Tuo, Jianchao,Wu, Chen,Wang, Guosheng,et al. Neoproterozoic-Mesozoic Tectono-Magmatic evolution of the northern Dabie Orogen, eastern China[J]. 中国科学院青藏高原研究所,2022,228.
APA	Tuo, Jianchao.,Wu, Chen.,Wang, Guosheng.,Wu, Jiangwei.,Zhou, Zhiguang.,...&Haproff, Peter J..(2022).Neoproterozoic-Mesozoic Tectono-Magmatic evolution of the northern Dabie Orogen, eastern China.JOURNAL OF ASIAN EARTH SCIENCES,228.
MLA	Tuo, Jianchao,et al."Neoproterozoic-Mesozoic Tectono-Magmatic evolution of the northern Dabie Orogen, eastern China".JOURNAL OF ASIAN EARTH SCIENCES 228(2022).