Study of Palaeo-Lobate Features from South Gujarat Alluvial Plains, Western India and Their Significance.

Abstract

The south Gujarat alluvial plains lie between two major peri-continental rift basins,  Cambay (NNW – SSE) and Narmada – Tapi (ENE – WSW) and are characterized by thick accumulation of the Quaternary sediments. The study of the IRS-P6 (AWIFS Sensor) satellite data and subsequent field checks have revealed the presence of four distinct palaeo-lobate structures identified for the first time from the South Gujarat area. The study of palaeo-lobate features has revealed about the past dynamics of the south Gujarat fluvial systems and the palaeo land - sea boundary conditions. The geometry of these lobes has clearly indicated them to be the river dominated fan-deltas and their development is attributed to voluminous input of sediments by the then prevailing active drainage conditions.