A Well-Preserved Beach Landform and Sedimentary Structure on the East Antarctic Coast Affected by Glacial Isostatic Rebound

A well-marked stepped topography is observed on a beach that faces an inner cove of the East Antarctic coast. The beach area is subject to mild wave action and glacial isostatic upheaval. The sedimentary structure suggests that the landform was formed by gradual migration of progradational processes of the upper shore-face slope in the offshore direction during the upheaval after Antarctic ice retreat.