Abstract
A Fourier spectral examination of the Bouguer anomaly map bounded by latitudes 16°45'N and 22°N and longitudes 73°E and 75°50'E lying within the Deccan Traps, India, has been presented, following the random source approach of Naidu (1968, 1970). The study indicates three subsurface source-horizons at mean depths of 42.5 km, 12–18 km and 9.5 km which are identified respectively with the Moho, the Conrad and the possible existence of a zone of subsidence. It is interesting to note that the Conrad discontinuity exhibits north-south variation in depth (12 km in the north to 18 km in the south). The results are well supported by the depth estimates made from the existing gravity data and recent deep seismic soundings in the region.
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