Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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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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1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, India
     

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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.

Keywords

Palynoflora, Palaeoenvironment, Early Palaeocene, Intertrappean Bed, Kutch, Gujarat.
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  • 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
Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, India
P. S. Ranhotra
Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, India

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.

Keywords


Palynoflora, Palaeoenvironment, Early Palaeocene, Intertrappean Bed, Kutch, Gujarat.

References