Abstract

Central India plateaus (i.e. Ajanta, Satpura and Malwa) are a product of rifting associated magmatism and eruption of flood basalt. The plateaus are at maximum topography at 800 m with lateral variation from north to south. These variations are also related to gravity anomalies. The Bouguer gravity anomalies are -80 mGal over the Ajanta plateau and vary to -30 mGal over the Satpura plateau. Here we have used free-air gravity data and topography data to study the correlation of geoid and topography variation (N and h) over the plateau regions characterized of the highlands in central India. For each plateau mean value of N and h data compared to theoretical correlation for Pratt and Airy models. We find the good correlation between the geoid (N) and topography (h) over the Malwa plateau which is substantially compensated whereas over the Ajanta and Satpura plateau having insignificant correlation.