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

Suresh C. Srivastava ¹, Neerja Jha ²

Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow-226007, IS
2 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow-226007, IN

Abstract

The subsurface sedimentary sequences peqaining to the Gondwanas in Budharam Area of Godavari Graben have yielded nearly a complete palynological sequence from Early Permian to Early Triassic represented by Talchir, Karharbari. Barakar. Barren Measures, Raniganj and Kamthi palynofloras. The presence of Jeiosphaerids and Botryococcus in Talchir palynozone indicates marine influence during the deposition of these sediments. The palynological transition from Late Permian (Raniganj) to Early Triassic (Kamthi Formation) is gradual and corroborates with the lithological succession

Keywords

Palynostratigraphy, Permian-Triassic, Budharam, Godavari Graben, Andhra Pradesh.

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Ratan kar ¹, Suresh C. Srivastava ¹

Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226007, IN

Abstract

Coal and carbonaceous shale samples from bore-hole TRSS-1, located in the southern part of Tatapani Ramkola Coalfield have been palynologically analysed. Surface sediments exposed in the vicinity of the bore-hole, along Suknaiya nala, were also examined to ascertain their stratigraphic position vis-a-vis the bor' "oIe sediments. On the basis of quantitative dominance, three assemblage zones have been distinguished. which in ascending order are: (i) Parasaccites-Callumispora palynoassemblage zone, (ii) Scheuringipollenites maxim us palynoassemblage zone and (iii) Faunipollenites-Scheuringipollenites palynoassemblage zone. The first two assemblage zones have been demarcated in bore-hole TRSS-1 and represent Upper Karharbari and Lower Barakar palynozones respectively. The third assemblage zone has been recorded in Suknaiya nala and represents Upper Barakar palynozone.

Keywords

Palynology, Gondwana Sediments, Palynomorphs, Assemblage Zones, Tatapani-Ramkola Coalfield, Chattisgarh.

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