气候变化领域集成服务门户(CCPortal): Early Triassic Pachycladina fauna newly found in the southern Lhasa Terrane of Tibet and its palaeogeographic implications

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DOI	10.1016/j.palaeo.2020.110030
	Early Triassic Pachycladina fauna newly found in the southern Lhasa Terrane of Tibet and its palaeogeographic implications
	Wu G.-C.; Ji Z.-S.; Kolar-Jurkovšek T.; Yao J.-X.; Lash G.G.
发表日期	2020
ISSN	0031-0182
英文摘要	The Lhasa Terrane of Tibet is critical to understanding Early Triassic crustal convergence of Gondwana and Eurasia. However, its palaeo-position during this period remains obscure. This paper considers the disputed tectonic nature of the Lhasa Terrane during Triassic time. The debate has taken the form of two schools of thought regarding the Lhasa Terrane. One holds that the terrane was a stable carbonate platform during Triassic time. The opposing view maintains that the Lhasa Terrane occupied a compressional orogenic belt. These contrasting explanations stem mainly from the absence of a sedimentary record, especially in the southern part of the Lhasa Terrane of Tibet. We report on results of a biostratigraphic investigation of a dolomite unit considered to be of Guadalupian age in the Comai area, southern Lhasa Terrane. This work yielded the ellisonid conodont species Pachycladina rendona n. sp. Wu and Ji suggesting an Early Triassic age and a low latitude depositional setting of the dolomite. Further, these findings favor correlation of the dolomite with the upper member of the Upper Permian to Lower Triassic Mujiuco Formation. Results of the present study, especially the newly collected Pachycladina fauna, suggest that the Lhasa Terrane was an element of a low-latitude carbonate platform that had separated from Gondwana during the Early Triassic. It is hoped that our findings will promote further research of the Triassic sedimentary history and paleogeographic evolution of the Lhasa Terrane. © 2020 Elsevier B.V.
英文关键词	Ellisonid; Eurasia; Gondwana; Mujiuco Formation; Pachycladina rendoensis; Permian
语种	英语
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150710
作者单位	Key Laboratory of Stratigraphy and Palaeontology, Ministry of Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China; Chinese Academy of Geological Sciences, Beijing, 100037, China; Geological Survey of Slovenia, Dimičeva ulica 14, Ljubljana, SI–1000, Slovenia; Department of Geology and Environmental Sciences, State University of New York - Fredonia, Fredonia, NY 14063, United States
推荐引用方式 GB/T 7714	Wu G.-C.,Ji Z.-S.,Kolar-Jurkovšek T.,et al. Early Triassic Pachycladina fauna newly found in the southern Lhasa Terrane of Tibet and its palaeogeographic implications[J],2020.
APA	Wu G.-C.,Ji Z.-S.,Kolar-Jurkovšek T.,Yao J.-X.,&Lash G.G..(2020).Early Triassic Pachycladina fauna newly found in the southern Lhasa Terrane of Tibet and its palaeogeographic implications.Palaeogeography, Palaeoclimatology, Palaeoecology.
MLA	Wu G.-C.,et al."Early Triassic Pachycladina fauna newly found in the southern Lhasa Terrane of Tibet and its palaeogeographic implications".Palaeogeography, Palaeoclimatology, Palaeoecology (2020).