Aspect and appraisal of Late Quaternary vegetation of Lower Bengal Basin

Sunirmal Chandra; Arghya K. Hait

doi:10.54991/jop.1996.1225

Authors

Sunirmal Chandra Division of Palynology & Environmental Biology, Bose Institute, 93/1, Acharya Prafulla Chandra Road, Calcutta 700009, India
Arghya K. Hait Centre for Study of Man &Environment, CK-11, Sector-II, Salt Lake City, Calcutta 700091, India

DOI:

https://doi.org/10.54991/jop.1996.1225

Keywords:

Palynology, Vegetation, Mangrove, Late Quaternary, Bengal Basin

Abstract

Available information, including the latest ones, on palynological investigations of Late Quaternary deposits of Lower Bengal Basin revealed the existence of brackish water swamp forest similar to the present day mangrove forest of Sundarbans in four different periods, viz., ca. 32,000 ca. 22,000, ca. 14,500 and ca. 7000 yrs B.P, established by radiocarbon dating. Consideration of present day environment of mangroves of the Sundarbans reflects their intertidal habitat. Sea-level changes in the Lower Bengal Basin demonstrates recurrent mangrove forest through the Late Quaternary using pollen analytical method and study of logs of woods in semi-decomposed state. Attempts have been made here to collocate the fossil data with Carbon 14 dating.

Keywords- , , , , .