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Imaging Crust and Upper Mantle Structure in the Dharwar Craton

Pitta, Poorvi Narayana (2017) Imaging Crust and Upper Mantle Structure in the Dharwar Craton. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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    Abstract

    To determine the crust and the upper mantle structures in the Dharwar craton. The fundamental mode of the Rayleigh wave is used for the analysis. The data is collected from the 34 broad band stations located in the Dharwar region. The teleseismic wave above 5.5 magnitude and having high signal to noise ratio, recorded during 2009 and 2010 are used for the analysis. The results estimate that the MOHO of the Eastern Dhawar Craton (EDC) is around 35 kms. In the North Western Dhawar Craton (NWDC) the MOHO is around 40 kms. And in the South Western Dhawar Craton (SWDC) the MOHO is around 45 kms. Since these are source receiver path specific the LAB depth cannot be estimated accurately. From the results we can infer that Dharwar craton have a thicker lithosphere.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. Kajaljyoti Borah
    Uncontrolled Keywords: Dharwar Craton; Group Velocity Determination; Imaging Crust; Upper Mantle Structure
    Subjects: Q Science > QE Geology
    Divisions: Department of Earth Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 10 Nov 2017 17:04
    Last Modified: 13 Nov 2017 16:56
    URI: http://eprints.iiserkol.ac.in/id/eprint/561

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