By Towhida Rashid
This short bargains with the reconstruction of Holocene paleoenvironment within the valuable a part of Bangladesh when it comes to relative sea-level (RSL) alterations that is 2 hundred km north from the current sea coast. Lithofacies features, mangal peat, diatom and paleophysiographical evidences have been thought of to reconstruct the earlier place and C-14 a while have been used to figure out the time of formation of the relative sea-level in the course of the Holocene. With typical reference datum the mandatory m.s.l. on the floor of 5 sections are calculate and the RSL curve means that Bangladesh has skilled mid Holocene RSL transgressions punctuated via regressions. The considerable marine diatom and mangrove pollens exhibits that the top RSL transgression in Bangladesh is round 6000 cal BP that is attained not less than 4.5 to 5m better than the trendy m.s.l. After this section, the relative sea-level began to fall and as a result a freshwater peat built round 5980―5700 cal BP. The plentiful mangrove pollens in salt-marsh succession indicates the regression round 5500 cal BP and, the peak was once 1―2 m greater than the trendy sea point. those and extra fascinating findings are mentioned during this short.
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