• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Phosphorus accumulation associated with intense diagenetic metal-oxide cycling in sediments along the eastern continental margin of India

    Thumbnail
    View/Open
    Curr_Sci_113_473a.pdf (941.4Kb)
    Date
    2017
    Author
    PrakashBabu, C.
    Ramaswamy, V.
    Metadata
    Show full item record
    Abstract
    Sequential phosphorus extractions were carried out to understand phosphorus cycling and enrichment in surface sediments along the eastern continental margin of India. Phosphorus associated with authigenic (Paut) and biogenic (Pbio) phases is high by a factor of 2-10 in the continental shelf sediments compared to slope and deep-sea sediments. Phosph associated with Fe oxides (PFe) is enriched by a factor of 2-5 in the continental slope and rise sediments (500-3000 m water depth) compared to shelf sediments. Fe-Mn oxy(hydroxides) formed during early diagenesis adsorb phosphate from the water column or pore waters, thereby enriching the PFe fraction in the continental slope sediments. These results are in contrast with those from the Arabian Sea, where wide and intense mid-depth oxygen minimum zone (150-1200 m water depth) releases PFe to pore waters and enhances Paut accumulation in the continental slope sediments.
    URI
    https://doi.org/10.18520/cs/v113/i03/468-473
    http://drs.nio.org/drs/handle/2264/7817
    Collections
    • Scholarly literature [9127]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV