气候变化领域集成服务门户(CCPortal): Cambrian–Triassic geodynamic evolution of central Qiangtang, Tibet: Comment

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DOI	10.1016/j.earscirev.2020.103275
	Cambrian–Triassic geodynamic evolution of central Qiangtang, Tibet: Comment
	Zeng L.; Shi L.-Z.
发表日期	2020
ISSN	00128252
卷号	208
英文摘要	We disagree on many basic aspects of the Cambrian–Triassic tectonic reconstruction of central Qiangtang, Tibet, proposed by Xu et al. (2020) (Earth-Science Reviews, v. 201, doi: https://doi.org/10.1016/j.earscirev.2020.103083), because their reconstructions are inconsistent with geological evidence. The allochthonous fragments in the accretionary complex of the Shuanghu suture zone should not be used as indicators of south Qiangtang geology. Furthermore, no evidence exists for repeated drift–collision between north and south Qiangtang along the Shuanghu suture zone from the Paleozoic to Triassic, because the Shuanghu Paleo-Tethys Ocean likely existed from the Cambrian to Triassic, as indicated by continuous ophiolitic rocks. No evidence supports the occurrence of north Qiangtang–Qaidam–Kunlun collision during the Middle Ordovician to early Silurian, because the northward subduction of the Anyemaqen–Kunlun–Muztagh Paleo-Tethyan branch between these two tectonic entities occurred from the Paleozoic to Triassic, as inferred from radiolarian-bearing ophiolitic rocks and coeval arc magmatism in the Kunlun block. In addition, there is no evidence for the North Qiangtang–South China collision during the late Carboniferous to early Permian, because the Jinsa Paleo-Tethyan oceanic branch was active at this time, as evidenced by the presence of radiolarian-bearing ophiolitic fragments in the suture zone. © 2020 Elsevier B.V.
关键词	Central Qiangtang Jinsa Paleo-Tethyan suture zone Shuanghu Paleo-Tethyan suture zone Tectonic reconstruction Tibetan Plateau
英文关键词	accretionary prism; allochthon; Cambrian; collision zone; geodynamics; paleoceanography; suture zone; tectonic reconstruction; Triassic; China; Qiangtang Block; Xizang
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203950
作者单位	Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, China
推荐引用方式 GB/T 7714	Zeng L.,Shi L.-Z.. Cambrian–Triassic geodynamic evolution of central Qiangtang, Tibet: Comment[J],2020,208.
APA	Zeng L.,&Shi L.-Z..(2020).Cambrian–Triassic geodynamic evolution of central Qiangtang, Tibet: Comment.Earth Science Reviews,208.
MLA	Zeng L.,et al."Cambrian–Triassic geodynamic evolution of central Qiangtang, Tibet: Comment".Earth Science Reviews 208(2020).