Presence of Permian extension-and arc-type magmatism in southern Tibet: Paleogeographic implications
Resource
Geological Society of America Bulletin, 122(7-8), 979-993
Journal
Geological Society of America Bulletin
Pages
979-993
Date Issued
2010
Date
2010
Author(s)
Zhu, Di-Cheng
Mo, Xuan-Xue
Zhao, Zhi-Dan
Niu, Yaoling
Wang, Li-Quan
Chu, Qiu-Hong
Pan, Gui-Tang
Xu, Ji-Feng
Zhou, Chang-Yong
Abstract
Research Article| July 01, 2010 Presence of Permian extension- and arc-type magmatism in southern Tibet: Paleogeographic implications Di-Cheng Zhu; Di-Cheng Zhu † 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China †E-mail: dchengzhu@163.com Search for other works by this author on: GSW Google Scholar Xuan-Xue Mo; Xuan-Xue Mo 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China Search for other works by this author on: GSW Google Scholar Zhi-Dan Zhao; Zhi-Dan Zhao 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China Search for other works by this author on: GSW Google Scholar Yaoling Niu; Yaoling Niu 2Department of Earth Sciences, Durham University, Durham DH1 3LE, UK Search for other works by this author on: GSW Google Scholar Li-Quan Wang; Li-Quan Wang 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China Search for other works by this author on: GSW Google Scholar Qiu-Hong Chu; Qiu-Hong Chu 4Department of Geosciences, National Taiwan University, Taipei 106, China Search for other works by this author on: GSW Google Scholar Gui-Tang Pan; Gui-Tang Pan 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China Search for other works by this author on: GSW Google Scholar Ji-Feng Xu; Ji-Feng Xu 5Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Search for other works by this author on: GSW Google Scholar Chang-Yong Zhou Chang-Yong Zhou 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China Search for other works by this author on: GSW Google Scholar Author and Article Information Di-Cheng Zhu † 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China Xuan-Xue Mo 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China Zhi-Dan Zhao 1State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China Yaoling Niu 2Department of Earth Sciences, Durham University, Durham DH1 3LE, UK Li-Quan Wang 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China Qiu-Hong Chu 4Department of Geosciences, National Taiwan University, Taipei 106, China Gui-Tang Pan 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China Ji-Feng Xu 5Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Chang-Yong Zhou 3Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China †E-mail: dchengzhu@163.com Publisher: Geological Society of America Received: 23 Mar 2009 Revision Received: 02 Aug 2009 Accepted: 15 Aug 2009 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2010 Geological Society of America GSA Bulletin (2010) 122 (7-8): 979–993. https://doi.org/10.1130/B30062.1 Article history Received: 23 Mar 2009 Revision Received: 02 Aug 2009 Accepted: 15 Aug 2009 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Di-Cheng Zhu, Xuan-Xue Mo, Zhi-Dan Zhao, Yaoling Niu, Li-Quan Wang, Qiu-Hong Chu, Gui-Tang Pan, Ji-Feng Xu, Chang-Yong Zhou; Presence of Permian extension- and arc-type magmatism in southern Tibet: Paleogeographic implications. GSA Bulletin 2010;; 122 (7-8): 979–993. doi: https://doi.org/10.1130/B30062.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The geographical location of the Lhasa terrane in the Permian remains a subject of debate. The recognition of the Permian basalts in the Tethyan Himalaya and the Permian volcanic rocks in the Lhasa terrane in southern Tibet together with the geochemistry of these rocks offer some new insights. The Permian basalts in the Tethyan Himalaya show a geochemical affinity with tholeiitic continental flood basalts, and are interpreted to have formed in an extensional setting. The new geochemical data and the geographical distribution of these basalts indicate that they probably represent the easternmost extent of the Panjal continental flood basalt province. All of the Permian basalts in the Lhasa terrane show a calc-alkaline, high-alumina basalt affinity, with significant negative Nb‑Ta‑Ti anomalies. These geochemical features, combined with the recent documentation of the Permian Songdo eclogite and sedimentological observations, indicate the existence of a subduction system beneath the central Lhasa subterrane in the Permian. The presence of both extension- and arc-type magmatism of Permian age in present-day southern Tibet is inconsistent with the general view that the Lhasa terrane did not rift away from the northern margin of the Greater India until the Late Permian or Triassic. Instead, we suggest that the central Lhasa subterrane may have been a microcontinent isolated in the Paleo-Tethyan Ocean basin, at least during the Carboniferous–Middle Permian time. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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