Soil-landform development of a part of the fold belt along the eastern coast of Bangladesh

Based on ages and heights above the mean sea level for the five terraces recognized in the study area, the overall base-level rise rates calculated are about 3.6 mm/year (18 ka-present) for the Maiskhali Island and 2.86 mm/year (35 ka-present) for the mainland (Jaldi anticline). These base level changes represent combined effects of eustatic sea level and tectonic uplift due to folding.