气候变化领域集成服务门户(CCPortal): Provenance Evolution of Age-Calibrated Strata Reveals When and How South China Block Collided With Gondwana

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DOI	10.1029/2020GL090282
	Provenance Evolution of Age-Calibrated Strata Reveals When and How South China Block Collided With Gondwana
	Yang C.; Li X.-H.; Li Z.-X.; Zhu M.; Lu K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	The South China Block (SCB) has been regarded by many as an integral part of Gondwana, but proposed timing and processes for its accretion to Gondwana vary and remain contentious, largely owing to the lack of reliable Pan-African age paleomagnetic data and tectono-magmatic records from the SCB. Integrated in situ U-Pb ages and Hf-O isotope analyses of detrital zircons from geochronologically well-calibrated Ediacaran-Cambrian sedimentary rocks of western SCB reveal age populations of 2.51, 1.85, 1.20, 0.80, and 0.52 Ga. Detrital zircon age spectra indicate a major tectonic transition for the SCB during 0.56–0.54 Ga, interpreted to reflect the beginning of the collision between SCB-Indochina and NW India blocks. The collisional event lasted until early Ordovician, leading to the suturing of the SCB-Indochina to the northern margin of East Gondwana. ©2020. The Authors.
英文关键词	Silicate minerals; Zircon; Detrital zircon; Detrital zircon age spectrum; Early ordovician; Ediacaran cambrians; Integral part; Isotope analysis; Paleomagnetic data; South China block; Sedimentary rocks; accretion; continental collision; geochronology; isotopic composition; landscape evolution; lithostratigraphy; Pan African orogeny; provenance; spectral analysis; zircon; China; India; Indochina; South China Block
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169662
作者单位	State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; British Geological Survey, Nottingham, United Kingdom; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Earth Geodynamics Research Group, TIGeR, School of Earth and Planetary Sciences, Curtin University, Perth, WA, Australia; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing, China
推荐引用方式 GB/T 7714	Yang C.,Li X.-H.,Li Z.-X.,et al. Provenance Evolution of Age-Calibrated Strata Reveals When and How South China Block Collided With Gondwana[J],2020,47(19).
APA	Yang C.,Li X.-H.,Li Z.-X.,Zhu M.,&Lu K..(2020).Provenance Evolution of Age-Calibrated Strata Reveals When and How South China Block Collided With Gondwana.Geophysical Research Letters,47(19).
MLA	Yang C.,et al."Provenance Evolution of Age-Calibrated Strata Reveals When and How South China Block Collided With Gondwana".Geophysical Research Letters 47.19(2020).