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    Basement configuration of KG offshore basin from magnetic anomalies

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    J_Earth_Syst_Sci_125_663.pdf (249.6Kb)
    Date
    2016
    Author
    Subrahmanyam, V.
    Swamy, K.V.
    Raj, N.
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    Abstract
    Marine magnetic anomalies along three representative profiles falling between shelf break and continent-ocean boundary in the offshore Krishna-Godavari basin were quantitatively interpreted for understanding the nature and structure of the magnetic basement using inversion technique. The interpretation of the anomalies shows that the magnetic basement lies deeper than the base of the sediments, i.e., acoustic basement identified by the seismic studies. This interpretation also shows that the magnetic basement is faulted along the NW-SE direction with the upthrown side lying to the north of the anomaly trend of this region. The coincidence of magnetizations observed through the present interpretation with that of charnockites of neighbouring EGMB and onshore K-G basin areas indicates that EGMB geology (charnockites, granitic gneiss, etc.) extends up to COB in the offshore K-G basin
    URI
    http://drs.nio.org/drs/handle/2264/4982
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