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On satellite geoidal mapping over the Elan Bank, Antarctica


Affiliations
1 Space Applications Centre (Indian Space Research Organization), Ahmedabad 380 015, India
2 Oil India Ltd, Duliajan 786 602, India
 

Satellite geoidal data over the Elan Bank region in Antarctica could be demarcated with the surroundings and confirmed as continental lithosphere. It has been obser­ved that the satellite geoidal map can well demarcate the continental margin region near the Indian coastal region using high-resolution geoid/gravity data. This also helps determine the nature of the lithospheric plate over the Elan Bank. A large portion of land got detached from the Indian plate during the transition processes between the continental and oceanic crust that were originally created by rifting. Satellite geoidal mapping is a comparatively new technique for crust delineation, offshore exploration and tectonics-related studies.

Keywords

Continental crust, geoidal mapping, lithospheric plate, satellite data.
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  • Brennecke, J. and Lelgemann, D., The altimetric geoid in the North Sea. In Satellite Microwave Remote Sensing (ed. Allan, T. D.), John Wiley, 1983, p. 526.

  • Haxby, F., Karner, G. D., La Brecque, J. L. and Weissel, J. K., Digital images of combined oceanic and continental data sets and their uses in tectonic studies. EOS Trans., Am. Geophys. Union, 1983, 64, 995–1004.

  • Sandwell, D. T. and McAdoo, D. C., Marine gravity of southern Indian Ocean and Antarctic margins from Geosat. J. Geophys. Res., 1988, 93, 10389–10396.

  • Rapp, R., The determination of geoid undulations and gravity anomalies from Seasat altimeter data. J. Geophys. Res., 1983, 88, 1552–1562.

  • Majumdar, T. J. and Bhattacharyya, R., Delineation of continental margin in the Indian offshore using high resolution satellite geoid/ gravity data. Space Res. Today, 2013, 188, 8–14.

  • Bhattacharya, G. C. and Chaubey, A. K., Western Indian Ocean – a glimpse of the tectonic scenario. In The Indian Ocean – A Perspective (eds Sen Gupta, R. and Desa, E.), Oxford & IBH Publishers, New Delhi, 2001, pp. 691–729.

  • Gaina, C. et al., Breakup and early seafloor spreading between India and Antarctica. Geophys. J. Int., 2007, 170, 151–169.

  • Borisshova, I. et al., Structure and development of a micro continent: Elan Bank in the southern Indian Ocean. Geochem. Geophys. Geosyst. J., 2003, 4, 16; doi:10.1029/2003GC000535.

  • Shor, G. G. and Pollard, D. D., Origin and development from Pangaea to Gondwanaland to recent times. Science, 1963, 142, 48–49.

  • Davies, D. and Francis, T. J. G., The crustal structures of Seychelles Bank. Deep-Sea Res., 1964, 11, 921–927.

  • Smith, W. H. F. and Sandwell, D. T., Global sea floor topography from satellite altimetry and ship depth soundings. Science, 1997, 277, 1956–1962.

  • Bhattacharyya, R. and Majumdar, T. J., Bathymetry prediction over a part of the Bombay High in the western offshore using very high resolution satellite gravity data. Curr. Sci., 2009, 97, 1152– 1161.

  • Krishna, K. S., Laju, M., Bhattacharyya, R. and Majumdar, T. J., Geoid and gravity anomaly data of conjugate regions of Bay of Bengal and Enderby Basin: new constraints on breakup and spreading history between India and Antarctica. J. Geophys. Res., 2009, 114, B03102; doi:10.1029/2008JB005808.

  • Fu, L. L., Chelton, D. B. and Zlotnicki, V., Satellite altimetry: observing ocean variability from space. Oceanography, 1988, 1, 4–11.

  • Lundgren, B. and Nordin, P., Satellite altimetry: a new prospecting tool. In Proceedings of the Sixth Thematic Conference, Colorado, Environmental Research Institute of Michigan, Ann Arbor, USA, 1988, pp. 565–575.

  • Majumdar, T. J. and Bhattacharyya, R., An atlas of very high resolution satellite geoid/gravity over the Indian offshore. SAC Technical Note No. SAC/RESIPA/MWRG/ESHD/TR-21/2004, p. 48.

  • Rajesh, S. and Majumdar, T. J., Generation of 3-D geoidal surface of the Bay of Bengal lithosphere and its tectonic implications. Int. J. Remote Sensing, 2004, 25, 2897–2902.

  • Foldvary, L. and Fukuda, Y., IB and NIB hypotheses and their possible discrimination by GRACE. Geophys. Res. Lett., 2001, 28(4), 663–666; https://doi.org/10.1029/2000GL011775.

  • Sneeuw, N. et al., One year of time-variable CHAMP-only gravity field models using kinematic orbits. In A Window on the Future of Geodesy, IAG Symposium Series, Springer Verlag, 2004, vol. 128, pp. 288–293; doi:10.1007/3-540-27432-4_49.

  • Chander, S. and Majumdar, T. J., Comparison of SARAL and Jason-1/2 altimetry-derived geoids for geophysical exploration over the Indian offshore. Geocarto Int., 2015, 31(2), 18; http://dx.doi.org/10.1080/10106049.2015.1041562.

  • Krishna, K. S. et al., Ancient ocean floor hidden beneath Bangladesh. Curr. Sci., 2019, 117(6), 916–917.

  • Wakker, K. F., Zandbergen, R. C. A., van Geldorp, G. H. M. and Ambrosius, B. A. C., From satellite altimetry to ocean topography: a survey of data processing techniques. Int. J. Remote Sensing,

  • , 9, 1797–1818.

  • Hwang, C., Hsu, H.-Y. and Jang, R. J., Global mean surface and marine gravity anomaly from multi-satellite altimetry: application of deflection-geoid and inverse Vening Meinesz formulae. J. Geod., 2002, 76, 407–418.

  • Majumdar, T. J., Mohanty, K. K. and Srivastava, A. K., On the utilization of ERS-1 altimeter data for offshore oil exploration. Int. J. Remote Sensing, 1998, 9, 1953–1968.

  • Chapman, M. E., Techniques for interpretation of geoid anomalies. J. Geophys. Res., 1979, 84, 3793–3801.


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  • On satellite geoidal mapping over the Elan Bank, Antarctica

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Authors

T. J. Majumdar
Space Applications Centre (Indian Space Research Organization), Ahmedabad 380 015, India
R. Bhattacharyya
Oil India Ltd, Duliajan 786 602, India

Abstract


Satellite geoidal data over the Elan Bank region in Antarctica could be demarcated with the surroundings and confirmed as continental lithosphere. It has been obser­ved that the satellite geoidal map can well demarcate the continental margin region near the Indian coastal region using high-resolution geoid/gravity data. This also helps determine the nature of the lithospheric plate over the Elan Bank. A large portion of land got detached from the Indian plate during the transition processes between the continental and oceanic crust that were originally created by rifting. Satellite geoidal mapping is a comparatively new technique for crust delineation, offshore exploration and tectonics-related studies.

Keywords


Continental crust, geoidal mapping, lithospheric plate, satellite data.

References





DOI: https://doi.org/10.18520/cs%2Fv122%2Fi8%2F974-978