Seismics

Significant results in crustal scale seismic research at the Institute include delineation of the south-easterly dipping West Bengal sedimentary basin and the Hinge zone (relict of continental and proto-oceanic crustal boundary formed during the rifting of India from Antarctic) using seismic refraction tomography, delineation of sub-Trappean Mesozoic sediments in Saurashtra peninsula and Deccan Volcanic Province, imaging of sub-Trappean Gondwana sediments from CDP seismic reflection data in south Rewa basin, detection of hidden active faults in Kutch which can be associated with the seismicity.

A technique of finite difference full wave form modeling and imaging of tilted transverse isotropic media has been developed for specialized applications for hydrocarbon exploration in fold-thrust belts and similar active mountainous areas.