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    Grenvillian continental collision in South China: new SHRIMP U-Pb zircon results and implications for the configuration of Rodinia

    Access Status
    Fulltext not available
    Authors
    Li, Zheng-Xiang
    Kinny, Peter
    Date
    2002
    Type
    Journal Article
    
    Metadata
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    Citation
    Li, Zheng-Xiang and Kinny, Peter. 2002. Grenvillian continental collision in South China: new SHRIMP U-Pb zircon results and implications for the configuration of Rodinia. Geology. 30 (2): pp. 163-166.
    Source Title
    Geology
    DOI
    10.1130/0091-7613(2002)030<0163:GCCISC>2.0.CO;2
    ISSN
    00917613
    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://geology.gsapubs.org/

    Copyright © 2002 by Geological Society of America

    Mailing address and website of the publisher is: Geological Society of America, P.O. Box 9140, Boulder, CO 80301-9140 USA (http://www.geosociety.org).

    URI
    http://hdl.handle.net/20.500.11937/29132
    Collection
    • Curtin Research Publications
    Abstract

    The timing of continental collision between the Yangtze and Cathaysia blocks of southChina is an issue that bears on the accretion of Asia, as well as on the assembly and configuration of the Neoproterozoic supercontinent Rodinia. We report in this paper SHRIMP (sensitive high-resolution ion microprobe) evidence that suggests a Grenvillian continental collision in south China, including (1) evidence for 1.3-1.0 Ga metamorphismon both sides of the Sibao orogen between the Yangtze and Cathaysia blocks and (2) sedimentary provenance of possible foreland-basin deposits on the Yangtze side of the orogen that were derived from the Cathaysia block and the Sibao orogen during the continental collision. The occurrence of ca. 1430 Ma granodiorites in southern Cathaysia, along with ca. 1800 Ma basement and Archean protoliths in northern Cathaysia, makes Cathaysia a possible western extension of the Mojave province in southwestern Laurentia. Together with regional data, we suggest that the Sibao orogen could be one of the Grenvillian sutures at the center of Rodinia assembly that brought Australia, Yangtze, and Cathaysia-Laurentia together by ca. 1000 Ma.

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