Abstract

The south Rewa rift-basin has a deposition of thick column of sub-trappean Gondwana sediments important for hydrocarbon potential. To image the subsurface geological structures with basement configuration and obtain different rock compositions of this sedimentary basin, both ?- and ?-wave velocity models (?! and ?") are derived down to a depth of 15 km using ray-trace inversion of long-offset seismic refraction and reflection data along the155 km long NS trending wide-angle seismic profile. The top layer indicates top soil and loose sediments (Pali-Tihki formations) having ?! varies from 3.20-3.40 km/s, ?" varies from 1.92-2.05 km/s, ?!??" variations of 1.570- 1.719 and Poisson