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    Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island

    117339_1302_Li XH et al Hainan-JG06.pdf (2.147Mb)
    Access Status
    Open access
    Authors
    Li, X.-H.
    Li, Zheng-Xiang
    Li, W.-X.
    Wang, Y.
    Date
    2006
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Li, Xian-Hua and Li, Zheng-Xiang and Li, Wu-Xian and Wang, Yuejun. 2006. Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island. Journal of Geology. 114 (3): pp. 341-353.
    Source Title
    Journal of Geology
    DOI
    10.1086/501222
    ISSN
    00221376
    Faculty
    Department of Applied Geology
    Faculty of Science and Engineering
    The Western Australian School of Mines
    Remarks

    The link to the journal’s home page is: http://www.journals.uchicago.edu/loi/jg

    Copyright © 2006. University of Chicago Press. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/18079
    Collection
    • Curtin Research Publications
    Abstract

    It has been widely accepted that an active continental margin existed along the coast of Southeast China during the Mesozoic time that produced extensive magmatism in the region. However, there is little constraint as to when this active margin was first initiated. Here we present new SHRIMP U-Pb zircon ages and geochemical and Sr-Nd isotopic data for syntectonic granites on Hainan Island. Our data demonstrate that these rocks, dated at 267-262 Ma, are typical of calc-alkaline I-type granites formed in continental arc environments. The age of this magmatic arc coincides with a sudden change in sedimentary environments in South China during the Permian time, suggesting that the South China Indosinian Orogeny was likely contemporaneous with the onset of continental arc magmatism.

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