Holocene Sea-level Movements and Coastal Dynamics: Records of Last 9000 years at Panigati near Khulna, Bangladesh

Author(s): Dr. M. Shahidul Islam and Michael J. Tooley

Book Name: Information Technology, Environment and Development in Bangladesh

Editor(s): P. J. Atkins and M.S. Alam

Publisher: Quaternary International 55, University of Durham

Year: 1995

Abstract:

The aim of the study is to reconstructthe Holocenesea-level history along a section of the coast of Bangladesh.Detailed litho-, bio and chronostratigraphic techniques have been applied to unveil the nature of sedimentary sequences in association with the events of the Holocene marine transgressions and regressions. Samples were collectedfrom Panigatinear Khulna.The study provides evidence of five periods of marine transgression, each followed by a regression, during the Holocene. Each minerogenic sediment layer indicates a marine episode and the sediments were deposited under intertidal to estuarine conditions. Each peat layer is in situ and indicates a regression of the sea. It is difficult to separate the regional eustatic components contributing to these relative sea-level movements, although processes operating locally and regionally are clearly evident. A sea-level curve together with possible error ranges, has been proposed for this part of Bangladesh. Since the early to mid-Holocene, an average relative sea-level rise of 1.07mm/yr has been estimated.

Citation:

Islam M. S. and Tooley M. J. (1995) Holocene Sea-level Movements and Coastal Dynamics: Records of Last 9000 years at Panigati near Khulna, Bangladesh’ In: Atkins  P. J. and Alam M. S. (Eds) Information Technology, Environment and Development in Bangladesh, University of  Durham, 84-100

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