Pollen analytical studies at the Nal Lake (Nalsarovar), Gujarat
DOI:
https://doi.org/10.54991/jop.1977.1051Keywords:
Pollen analysis, Nal Lake, Late Quaternary (India)Abstract
The pollen analysis of 6 m profile from the brackish water shallow Nal Lake about 60 km south-west of Ahmedabad reveals the Holocene history of the grassland-chenopod savannah in its vicinity. The chenopods show a declining trend from early Holocene to 3,500 years B.P. and Holoptelea integrifolia, a tree member of the riverain dry deciduous forest, shows a rising trend until 4,000 years B.P.
Three episodes of estuarine conditions, before 7,000 years B.P., between 3,500-6,000 years B.P. and around 160 years B.P. are recorded. These may be ascribed to the repeated overflowing of the flooded Little Rann caused by marine inundation possibly as a result of the tectonic disturbances. The lake had perhaps originated as a marine inlet.
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