Download Holocene Sea-level Scenarios in Bangladesh (SpringerBriefs by Towhida Rashid PDF

March 27, 2017 | Earth Sciences

By Towhida Rashid

This short bargains with the reconstruction of Holocene paleoenvironment within the principal a part of Bangladesh on the subject of relative sea-level (RSL) adjustments that is 2 hundred km north from the current beach. Lithofacies features, mangal peat, diatom and paleophysiographical evidences have been thought of to reconstruct the prior place and C-14 a long time have been used to figure out the time of formation of the relative sea-level through the Holocene. With average 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 through regressions. The considerable marine diatom and mangrove pollens shows that the top RSL transgression in Bangladesh is round 6000 cal BP that is attained not less than 4.5 to 5m larger than the fashionable m.s.l. After this part, the relative sea-level began to fall and hence a freshwater peat built round 5980―5700 cal BP. The ample mangrove pollens in salt-marsh succession indicates the regression round 5500 cal BP and, the peak used to be 1―2 m larger than the trendy sea point. those and extra attention-grabbing findings are mentioned during this Brief.

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