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      https://www.ias.ac.in/article/fulltext/jess/129/0086

    • Keywords

       

      Fold; fault; lineament; IRS-LISS III satellite data; aeromagnetic data; tectonic configuration

    • Abstract

       

      Lithological variations, circular spectral anomalies, geological structures such as folds, faults, lineaments and shear zones of Kutch sedimentary basin were interpreted using IRS-LISS III satellite data. Aeromagnetic data was also interpreted qualitatively and quantitatively and a number of anomalous magnetic zones, faults, lineaments and domal structures were mapped. Magnetic basement depths and thickness of sediments were also computed. A number of alternate basement ridges/highs/uplifted blocks and depressions/lows/downthrown blocks were delineated. The information obtained from satellite remote sensing and aeromagnetic data were then integrated and the results were compared with published literature on gravity, magnetic (ground), magnetotelluric and seismic data, and also with field geology and well data. Structural controls in spatial domain (latitude, longitude and depth) were derived by establishing spatial relationship among different geological structures with reference to the geological time scale. Numerous horst and graben structures (ridges and sub-basins) as well as a number of master faults were delineated which serve as vital information with regard to hydrocarbon prospects and earthquake vulnerability, respectively. Based on the information obtained from this integrated study, a conceptual tectonometamorphic model along with sedimentation and igneous activity (ophiolitic and basaltic) has been constructed which has a significant bearing on the sequence of events that occurred during the deformational history of Kutch sedimentary basin resulting into the present day tectonic configuration.

    • Author Affiliations

       

      K CHANDRA MOULI1 P CHANDRASEKHAR1 D P RAO1 V K DADHWAL2

      1. National Remote Sensing Centre, Indian Space Research Organisation, Hyderabad 500 037, India.
      2. Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram 695 547, India.
    • Dates

       
  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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