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    Out of Africa: detrital zircon provenance of central Madagascar and Neoproterozoic terrane transfer across the Mozambique ocean

    Access Status
    Fulltext not available
    Authors
    Fitzsimons, Ian
    Hulscher, B.
    Date
    2005
    Type
    Journal Article
    
    Metadata
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    Citation
    Fitzsimons, I. c. W. and Hulscher, B.. 2005. Out of Africa: detrital zircon provenance of central Madagascar and Neoproterozoic terrane transfer across the Mozambique ocean. Terra Nova 17 (3): 224-235.
    Source Title
    Terra Nova
    DOI
    10.1111/j.1365-3121.2005.00595.x
    Faculty
    Department of Applied Geology
    Division of Resources and Environment
    Remarks

    Copyright 2005 John Wiley & Sons, Ltd.

    Please refer to the publisher for the definitive published version.

    URI
    http://hdl.handle.net/20.500.11937/45552
    Collection
    • Curtin Research Publications
    Abstract

    The Neoproterozoic East African Orogen reflects closure of the Mozambique Ocean and collision of the Congo and Dharwar cratons. This palaeogeographic change and its environmental consequences are poorly understood, but new detrital zircon ages from Madagascar and published data from elsewhere provide evidence for multiple ocean basins and two-stage collision. We propose that central Madagascar rifted from the Congo Craton and crossed a Palaeomozambique Ocean to collide with the Dharwar Craton at c. 700 Ma, opening a Neomozambique Ocean in its wake. Closure of the Neomozambique Ocean at c. 600 Ma juxtaposed the Congo and Dharwar cratons and resulted in prolonged collisional orogenesis concluding at c. 500 Ma.

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