• 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.

    Magnetic basement in the central Bay of Bengal

    Thumbnail
    View/Open
    Mar_Geophys_Res_23_97.pdf (760Kb)
    Date
    2002
    Author
    Sarma, K.V.L.N.S.
    Ramana, M.V.
    Ramprasad, T.
    Desa, M.
    Subrahmanyam, V.
    Krishna, K.S.
    Rao, M.M.M.
    Metadata
    Show full item record
    Abstract
    Analyses of about 6000 km of processed magnetic data in the central Bay of Bengal using Analytical Signal Processing and Werner Deconvolution techniques revealed that the depth to top of the magnetic basement varies between 5 and 12 km from the sea surface, where the water column thickness is about 3.4 km. These inferred depths are comparable to the reported acoustic basement depths. The basement map derived from magnetic interpretation defines the general configuration of the central Bay of Bengal. The N10-12 degrees W trending subsurface 85 degrees E Ridge buried under 2 to 3 km thick sediments is a prominent tectonic feature. Offshore basins characterised by deeper magnetic basement (approx. 9 km) and 100-200 km wide are present on either sides of the ridge. These basins were filled with 6-8 km thick lower Cretaceous to recent sediments. Integrated geophysical study depicts that the magnetic basement is characterised by NW-SE, NE-SW, NNE-SSW, N10-12 degrees W and E-W trending structural features that are associated with the lower Cretaceous ocean floor. The Analytical Signal Processing and Werner Deconvolution techniques proved to be effective in determining the depth to the basement in area covered by thick sediment overburden and characterized by a complex geologic/tectonic framework.
    URI
    http://drs.nio.org/drs/handle/2264/1368
    Collections
    • Scholarly literature [9074]

    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