Pollen analytical studies at the Nal Lake (Nalsarovar), Gujarat
Keywords:Pollen analysis, Nal Lake, Late Quaternary (India)
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.
Champion Sir Harry & Seth SK 1968. A Revised Survey of Forest Types. New Delhi.
Champion Sir Harry & Seth SK 1968. Silviculture. New Mass.
Erdtman G 1943. An Introduction of Pollen Analysis. Waltham. Mass.
Fuljams Major 1853. A description of salt water lake called the Null, situated on the Isthmus of Kathiawar. J. Bomb. Asiat. Soc., 5: 109-116.
Gupta SK 1975. Sitting of the Rann of Kutch during Holocene. Indian J. Earth Sci., 2 (2): 163-175.
Khandelwal A & Vishnu-Mittre 1975. Palynology of Holoptelea integrifolia Planch. The Palaeobotanist, 22 (2): 127-132. https://doi.org/10.54991/jop.1973.933
Pascoe Sir Edwin H 1964. A Manual of the Geology of India and Burma. III. Delhi.
Saxton WT & Sedgewick LJ 1918. Plants of northern Gujarat. Rec. bot. Surv. India. 6 (7): 208-323.
Vaidya BS 1967. Flora of Ahmedabad. Ahmedabad.
Vishnu-Mittre & Sharma, Chhaya 1975. Pollen analysis of the salt flat at Malvan. Gujarat. The Palaeobotanist, 22 (2): 118-123. https://doi.org/10.54991/jop.1973.931
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