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Ordovician successions in southern-central Xizang (Tibet), China-Refining the stratigraphy of the Himalayan and Lhasa terranes
Zhen, Yong Yi1; Zhang, Yuandong (张元动)2,3,4,5; Harper, David A. T.6; Zhan, Renbin (詹仁斌)2,3,4,5; Fang, Xiang (方翔)2,3,4; Wang, Zhihao (王志浩)4; Yu, Shenyang4; Li, Wenjie4
2020-07-01
Source PublicationGONDWANA RESEARCH
ISSN1342-937X
Volume83Pages:372-389
Abstract

The Ordovician stratigraphy of southern-central Xizang (Tibet) has been revised based on new conodont data recovered from 43 samples in four stratigraphic units and their integration with existing nautiloid and graptolite data. The Hisiiodella holodentata and Pygodus serra biozones have been identified respectively in the Alai and Jiaqu formations of the Chiatsun Group exposed near Alai village in Nyalarn County within the Himalayan terrane, and the Yangtzeplacognathus foliaceus Subbiozone (lower part of the Pygodus serra Biozone) in the Sangqu Formation exposed at the Guyu section within Zayu County in the Lhasa terrane. Recognition of these biozones has increased the precision of correlation of the middle-upper Darriwilian strata in the region. Regional reassessment of the Ordovician stratigraphy permitted by new biostratigraphic data has allowed revised definitions for the Chiatsun and Keerduo groups and the Sangqu and Xainza formations. The Chiatsun Group is defined herein to include three lithologically distinctive formations in descending order, the Jiaqu, the Alai and the Adang formations. The stratigraphic age for the Jiaqu and Alai formations in the type area ranges from the middle Darriwilian (Histiodella holodentata Biozone) to middle Katian (Hamarodus brevirameus Biozone), but the age of the Adang Formation remains less certain. Crown Copyright (C) 2020 Published by Elsevier B.V. on behalf of International Association for Gondwana Research. All rights reserved.

KeywordOrdovician Conodont biostratigraphy Chiatsun Group Keerduo Group Sangqu Formation Tibet
DOI10.1016/j.gr.2020.01.023
Indexed BySCI
Language英语
WOS KeywordMOUNT JOLMO LUNGMA ; DEPOSITIONAL HISTORY ; INDIAN HIMALAYA ; EVOLUTION ; CONSTRAINTS ; CONODONTS ; GONDWANA ; EVEREST ; GEOCHRONOLOGY ; FABRICS
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0706] ; CAS Strategic Priority Research Program[XDB26000000] ; National Natural Science Foundation of China[41772005] ; Chinese Ministry of Science and Technology Projects[2017ZX05036001-004] ; Ministry of Nature and Resources of China[DD20190009]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000540384800019
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program ; CAS Strategic Priority Research Program ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology Projects ; Ministry of Nature and Resources of China
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/32021
Collection中国科学院南京地质古生物研究所
Corresponding AuthorZhen, Yong Yi; Zhang, Yuandong (张元动)
Affiliation1.Geol Survey New South Wales, Londonderry, NSW 2753, Australia
2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Zhen, Yong Yi,Zhang, Yuandong ,Harper, David A. T.,et al. Ordovician successions in southern-central Xizang (Tibet), China-Refining the stratigraphy of the Himalayan and Lhasa terranes[J]. GONDWANA RESEARCH,2020,83:372-389.
APA Zhen, Yong Yi.,Zhang, Yuandong .,Harper, David A. T..,Zhan, Renbin .,Fang, Xiang .,...&Li, Wenjie.(2020).Ordovician successions in southern-central Xizang (Tibet), China-Refining the stratigraphy of the Himalayan and Lhasa terranes.GONDWANA RESEARCH,83,372-389.
MLA Zhen, Yong Yi,et al."Ordovician successions in southern-central Xizang (Tibet), China-Refining the stratigraphy of the Himalayan and Lhasa terranes".GONDWANA RESEARCH 83(2020):372-389.
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