Abstract

Magnetotelluric field investigations were carried out at more than 600 stations in a gridded fashion covering the Saurashtra peninsula. The region is covered with Deccan traps with exposed sediments towards north-east of the region. It is conjectured that the sediments might be present below the trap cover and from paleo-channel study, its thickness may be increasing towards south. The MT data successfully delineated the subtrappean Mesozoic sediments. A major sedimentary basin is delineated in the NW part of the Saurashtra peninsula basin whose thickness varies from few hundred meters to as thick as 2-2.5 km. Structural features like faults/fractures are also delineated along Amreli-Chotila line.