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Environmental Zonation

  • Chirananda De
Chapter
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

Natural zoogeographic distribution of the trace-producing endobenthic organisms with reference to environmental attributes and geomorphic features primarily control the distribution and relative abundance of their traces or lebensspuren that define distinctive ichnological zones (or ichnozones) and constituent subzones. Two broad environmental ichnozones, named as coastal and lower estuarine ichnozones, have been recognized in the study area. These zones include subzones defined by specific organism(s) and their traces. Most of the Bay of Bengal ichnozones and subzones are attributable to diagnostic coastal subenvironments and geomorphic settings. For example, Uca-Turritella-Telescopium subzone of the backswamps and upper intertidal pellet spread subzone within the coastal ichnozone. This chapter deals with detailed characterization of the ichnozones and subzones with the help of wide field database that includes location maps of the sampled lebensspuren and representative ichnoprofile sections across the five reference beach sectors.

References

  1. De C (1993) Insect burrow as an index of semi-desertic inter-dunal trough environment. News GSI (CHQ) 23(4):18Google Scholar
  2. De C (2000) Neoichnological activities of endobenthic invertebrates in downdrift coastal Ganges Delta complex, India: their significance in trace Fossil interpretations and palaeoshoreline Reconstructions. Ichnos 7:89–113CrossRefGoogle Scholar
  3. De C (2005) Biophysical model of intertidal beach crab burrowing: application and significance. Ichnos 12:11–29CrossRefGoogle Scholar
  4. De C (2009) The Vindhyan Ediacaran fossil and trace fossil assemblages: their insight into early metazoan palaeobiology, palaeobiogeography and Vindhyan biostratigraphy. Ind J Geosc 63(1):11–40Google Scholar
  5. Dörjes J (1972) Georgia coastal region, Sapelo Island, USA. Sedimentology and biology, VII. Distribution and zonation of macrobenthic animals. Senckenberg marit 4:183–216Google Scholar
  6. Dörjes J (1978) Sedimentologische und faunistische Untersuchungen an Watteni in Taiwan. II. Faunistische und aktuopaleontologische Studien. Senckenberg marit 10:117–143Google Scholar
  7. Dörjes J, Hertweck G (1975) Recent biocoenoses and ichnocoenoses in shallow water marine environments. In: Frey RW (ed) The study of trace fossils. Springer-Verlag, New York, pp 459–491CrossRefGoogle Scholar
  8. Dörjes J, Howard JD (1975) Estuaries of the Georgia coast, U.S.A. sedimentology and biology. iv. Fluvial marine transition indicators in an estuarine environment, Ogeechee river, Ossabaw Sound. Senckenberg marit 7:137–179Google Scholar
  9. Frey RW, Mayou TV (1971) Decapod burrows in Holocene Barrier Island, beaches and wash over fans, Georgia. Senckenberg marit 3:53–77Google Scholar
  10. Hertweck G (1973) Der Golf Von Gaeta (Tyrrhenisches Meer). VI. Lebensspuren einger Bodenbewoohner and Jchnofaziesbereiche. Sencken marit 5:179–197Google Scholar
  11. Mayou TV, Howard JD (1975) Estuaries of the Georgia Coast, U.S.A.: sedimentology and biology. VI. Animal-sediment relationships of a salt marsh estuary-Doboy Sound. Senckenberg mariti 7:205–236Google Scholar
  12. Reineck HE, Singh IB (1971) Der Golf Von Gaeta (Tyrrhenisches Meer). III. Die Gefuge Von Vorstrand und schelfsedimenten. Senckenberg mariti 3:285–301Google Scholar
  13. Reineck HE, Dorjes J, Gadow S et al (1968) Sedimentologie, Faunenzoonierung and Faziesabfolge Vor der Ostkliste der inneren Deutschen Bucht. Senckenberg Leth 49:261–309Google Scholar
  14. Schäfer W (1972) Ecology and palaeoecology of marine environments. University of Chicago Press, ChicagoGoogle Scholar
  15. Seilacher A (1953) Studien zur Palichnologie II. Die Fossilen Ruhespuren(Cubiichnia). N Jb Geol Palaeonot Abh 98:87–124Google Scholar
  16. Smith KM (1971) Structural and functional aspects of a sublittoral community. Ph.D. thesis, University of Georgia, Athens, p 170Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Palaeontology DivisionGeological Survey of IndiaKolkataIndia

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