Sediment characteristics in the depositional environments of the Krishna delta, east coast of India

Investigations on six vibracores collected at active sedimentation area in the southwestern margin of the lower Krishna delta indicate that the sediments are sands (3 O) to mud (8 O), well-to-poor sorting with or without bioturbation. The presence of parallel and cross bedding and interbedded sands in the vertical facies represents intense tidal reworking and storm events, respectively. The sedimentation process and progradation of the delta are controlled by the successive repetition and formation of spits and lagoons.