Journal of the Geological Society of India

, Volume 88, Issue 5, pp 549–558 | Cite as

Palyno-petrographical facet and depositional account of Gondwana sediments from East Bokaro coalfield, Jharkhand

Research Articles
First Online:
Received:
Accepted:

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.

Keywords

Permian Palynology Gondwana sediments Damodar Basin Maceral analysis Thermal Alteration Index East Bokaro Coalfield Jharkhand 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Batten, D.J. (1973) Use of palynologic assemblage-types in Wealden correlation. Palaeontology, v.16, pp.1–40.Google Scholar
  2. 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.201–223Google Scholar
  3. 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.Google Scholar
  4. 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.Google Scholar
  5. 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.Google Scholar
  6. 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.Google Scholar
  7. 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.Google Scholar
  8. Bharadwaj, D.C. and Srivastava, S.C. (1969) Some new miospores from Barakar Stage, Lower Gondwana, India. Palaeobotanist, v.17, pp.220–229.Google Scholar
  9. Chaloner, W.G. (1989) Fossil charcoal as an indicator of palaeoatmospheric oxygen level. Jour. Geol. Soc. London, v.146, pp.171–174.CrossRefGoogle Scholar
  10. 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.Google Scholar
  11. 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.Google Scholar
  12. 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.Google Scholar
  13. ICCP (1971) International Handbook of Coal Petrography, 1st Supplement to 2nd Edition. CNRS (Paris).Google Scholar
  14. ICCP (1975) International Handbook of Coal Petrography, 2nd Supplement to 2nd Edition. CNRS (Paris).Google Scholar
  15. Lele, K.M. (1976) Palaeoclimate implications of Gondwana floras. Geophytology, v.6, pp.207–229.Google Scholar
  16. Tiwari, R.S. (1973) Palynological succession in the Barakar type area. Geophytology, v.3, pp.166–183.Google Scholar
  17. 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.Google Scholar
  18. 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.Google Scholar
  19. 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.Google Scholar
  20. Tyson, R.V. (1995) Sedimentary organic matter, Organic facies and Palynofacies, Chapman & Hall, London, xviii+615p.CrossRefGoogle Scholar

Copyright information

© Geological Society of India 2016

Authors and Affiliations

  • Srikanta Murthy
    • 1
  • S. Mahesh
    • 1
  • Jyoti Shankar Roy
    • 2
  1. 1.Birbal Sahni Institute of PalaeobotanyLucknowIndia
  2. 2.Natural Energy ResourcesNENR-M-IIB, GSI Complex, Bhu Bijnan BhavanSalt Lake KolkataIndia

Personalised recommendations