Palynofloral study of the intertrappean bed exposed at a new locality in Kutch district,Gujarat and its implications on palaeoenvironment and age |
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| Authors: | R K Saxena P S Ranhotra |
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| Institution: | (1) Department of Geosciences, Museum of Texas Tech University, Lubbock, TX 79409, USA;(2) Department of Geology, University of Texas, Arlington, TX 76019-0049, USA |
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| Abstract: | A palynofloral assemblage has been recorded from the intertrappean bed exposed at a new locality, near Naredi, on Naliya-Narayan
Sarovar Road in western Kutch, Gujarat. This intertrappean bed (ca. 0.6 m thick) of grey laminated clay is underlain and overlain
by the volcanic traps. The assemblage recovered from this bed includes algal and fungal remains, pteridophytic spores, angiospermous
pollen as well as cuticles of terrestrial plants. Important palynotaxa recovered are Azolla sp., Lygodiumsporites lakiensis, Polypodiaceaesporites intrapunctatus, Compositoipollenites argutus, C. conicus, Graminidites media,
Ladakhipollenites minutus, Lakiapollis ovatus, Matanomadhiasulcites sp., etc. Besides, a variety of fungal remains belonging to the genera Dictyosporites, Frasnacritetrus (Tetraploa), Kutchiathyrites, Palaeomycites (VAM fungi), Papulosporonites, Parmathyrites, Phragmothyrites, Polycellaesporonites (Alternaria), etc have been recorded. It has been deduced that this intertrappean bed was deposited in a shallow depression over the
trap during short interval of quiescence in a tropical-subtropical climate. The age of the intertrappean bed is suggested
as Early Palaeocene. |
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