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    Geochemistry of Neogene sedimentary rocks from Borneo Basin, East Malaysia: Paleo-weathering, provenance and tectonic setting

    Access Status
    Fulltext not available
    Authors
    Ramasamy, Nagarajan
    Roy, P.
    Jonathan, M.
    Lozano, R.
    Kessler, F.
    Prasanna, Mohan Viswanathan
    Date
    2014
    Type
    Journal Article
    
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    Citation
    Ramasamy, N. and Roy, P. and Jonathan, M. and Lozano, R. and Kessler, F. and Prasanna, M.V. 2014. Geochemistry of Neogene sedimentary rocks from Borneo Basin, East Malaysia: Paleo-weathering, provenance and tectonic setting. Chemie der Erde. 74: pp. 139-146.
    Source Title
    Chemie der Erde
    DOI
    10.1016/j.chemer.2013.04.003
    ISSN
    0009-2819
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/37752
    Collection
    • Curtin Research Publications
    Abstract

    Multi-element geochemistry and mineralogy are used to characterize the chemical composition, degree of paleo-weathering, provenance and tectonic settings of the Neogene sedimentary rocks of Borneo Basin of east Malaysia. Sedimentary rocks are classified as extremely weathered sandstones (i.e. wacke, arkose, litharenite, Fe-sandstone and quartz arenite). Wacke, arkose, litharenite and Fe-sandstone are characterized by post-depositional K-metasomatism and zircon enrichment through sediment recycling. Geochemical characteristics suggest a mixed-nature provenance for the sandstones and the variable tectonic settings possibly mirror the complexity of the basin. Enriched Cr in quartz arenite and Fe-sandstone are related to the contribution from ophiolite or fractionation of Cr-bearing minerals.

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