Abstract
Palynological and petrological studies have been undertaken on the Gondwana coal and associated lithologies encountered in borehole EBM-2 of East Bokaro coalfield of Damodar Basin, India. The palynological investigation resulted in the recognition of Assemblage–III (Densipollenites, 27.9 m–214.30 m), Assemblage–II (Striatopodocarpites + Faunipollenites, 225.00 m–297.60 m) and Assemblage–I (Faunipollenites + Scheuringipollenites, 307.00m–433.00 m). Lithofacies study was also done for better understanding of the preservation and abundance/paucity of the spores and pollen in different lithologies as the current borehole has significant thickness of mudstones, shales and siltstone. Palynofacies study and Petrographical studies of coal samples encountered in the borehole were used to determine the depositional environment of the coal precursor peat swamp. Palynological data has revealed the presence of younger Raniganj palynoflora between 27.00-214.30 m depth that is lithologically defined as Barren Measures Formation. This spore pollen study has proved that these sediments were deposited during late early Permian to late Permian period. Further the maceral analysis of organic sediments as well as the Thermal Alteration Index (TAI) has revealed that the coaly shale at 336.5 m depth has hydrocarbon generation potential.
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References
Batten, D.J. (1973) Use of palynologic assemblage-types in Wealden correlation. Palaeontology, v.16, pp.1–40.
Batten, D.J. (1981) Palynofacies, organic maturation and source potential for petroleum. In: J. Brooks (Ed.), Organic maturation studies and fossil fuel exploration; Academic Press, London, pp.201–223
Batten, D.J. (1996) Palynofacies and palaeoenvironmental interpretation. In: J. Jansonius, and D.C. McGregor (Ed.), Palynology:principles and applications. Amer. Assoc. Stratigrap. Palynol. Found., v.3, pp.1011–1064.
Bharadwaj, D.C, Tiwari, R.S. and Anand-Praka Sh (1979) Permo-Triassic palynostratigraphy and lithological characterstics in Damodar Basin, India. Biological Memoir, v.4, pp.49–82.
Bharadwaj, D.C, Sah, S.C.D. and Tiwari, R.S. (1965) Sporological analysis of some coal and carbonaceous shales from Barren Measures stage (Lower Gondwana) of India. Palaeobotanist, v.13, pp.222–226.
Bharadwaj, D.C. and Salujha, S.K. (1965) A sporological study of Seam VII (Jote Dhemo colliery) in Raniganj Coalfield, Bihar, India. Plaeobotanist, v.13(1), pp.30–41.
Bharadwaj, D.C. and Salujha, S.K. (1965a) Sporological study of Seam VIII in Raniganj Coalfield, Bihar, India. Part IIDistribution of Sporae dispersae and correlation. Paleobotanist, v.13(1), pp.57–73.
Bharadwaj, D.C. and Srivastava, S.C. (1969) Some new miospores from Barakar Stage, Lower Gondwana, India. Palaeobotanist, v.17, pp.220–229.
Chaloner, W.G. (1989) Fossil charcoal as an indicator of palaeoatmospheric oxygen level. Jour. Geol. Soc. London, v.146, pp.171–174.
Chandra, S. and Chandra, A. (1988) Vegitational changes and their climate implications in coal bearing Gondwana. In: B.S. Venkat-achala and H.K. Maheshwari (Eds.), Concepts limits and extension of Indian Gondwana. Palaeobotanist, v.36, pp.74–86.
Cope, M.J. (1981) Products of natural burning as a component of the dispersed organic matter of sedimentary rocks. In: J. Brooks (Ed.), Organic maturation studies and fossil fuel exploration; Academic Press, London, pp.89–109.
Diessel, C.F.K. (1986) On the correlation between coal facies and depositional environments. Advances in the study of the Sydney basin. Proc. 20th Newcastle symposium, pp.19–22.
ICCP (1971) International Handbook of Coal Petrography, 1st Supplement to 2nd Edition. CNRS (Paris).
ICCP (1975) International Handbook of Coal Petrography, 2nd Supplement to 2nd Edition. CNRS (Paris).
Lele, K.M. (1976) Palaeoclimate implications of Gondwana floras. Geophytology, v.6, pp.207–229.
Tiwari, R.S. (1973) Palynological succession in the Barakar type area. Geophytology, v.3, pp.166–183.
Tiwari, R.S. and Rana, V. (1984) Palynodating of Permian and Triassic sediments in two bore-hole from Eastern limit of Raniganj Coalfield. West Bengal. A.K. Sharma et al., (Eds.), Symposium Evolutionary Botany & Biostratigraphy, Calcutta 1979. Curr. Trends in Life Sci., v.10, pp.425–449.
Tiwari, R.S. and Tripathi, A. (1987) Palynological zones and their climate inference in the coal bearing Gondwana of Peninsular India. Palaeobotonist, v.36, pp.87–101.
Tiwari, R.S. and Tripathi, A. (1992) Markar assemblage zones of spore and pollen species through Gondwana Paleozoic and Mesozoic sequence in India. Palaeobot., v.40, pp.194–236.
Tyson, R.V. (1995) Sedimentary organic matter, Organic facies and Palynofacies, Chapman & Hall, London, xviii+615p.
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Murthy, S., Mahesh, S. & Roy, J.S. Palyno-petrographical facet and depositional account of Gondwana sediments from East Bokaro coalfield, Jharkhand. J Geol Soc India 88, 549–558 (2016). https://doi.org/10.1007/s12594-016-0520-8
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DOI: https://doi.org/10.1007/s12594-016-0520-8