Advertisement

Geo-Marine Letters

, Volume 25, Issue 2–3, pp 183–189 | Cite as

Submarine permafrost in the nearshore zone of the southwestern Kara Sea

  • P. Rekant
  • G. Cherkashev
  • B. Vanstein
  • P. Krinitsky
Original

Abstract

The results of seismic studies in the shallow waters of the southwestern Kara Sea show the presence of a seismic unit that can be interpreted as relict submarine permafrost. The permafrost table has a strongly dissected upper surface and is located at a water depth of 5–10 m. A 3D modeling of the permafrost table suggests the presence of relict buried thermodenudational depressions (up to 2 km across) at a water depth of 5–10 m. The depressions may be considered to be paragenetic to thermocirques found at the Shpindler site. Relict thermocirques are completely filled with sediment and not exposed at the sediment surface.

Keywords

Nearshore Zone Seismic Unit Permafrost Table Shallow Water Zone Distinct Reflector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This study was supported by the INTAS (grant no. 2329).

References

  1. Antipina ZN, Are FE, Voychenko VV (1981) Cryolithozone of the Arctic shelf of Eurasia. In: Late Quarternary history and sedimentation of external and interior seas (in Russian). MSU press, Moscow, pp 47–60Google Scholar
  2. Are FE (1976) About sub-sea cryolithozone of the Arctic Ocean: regional and thermal physics studies of the permafrost in Siberia (in Russian). Yakutsk Press, Russia, pp 3–26Google Scholar
  3. Are FE (1987) Cryogenic processes of Arctic coastal zone dynamics. In: Fundamental investigations of the earth csssryosphere (in Russian). Nauka Press, Novosibirsk, pp 123–129Google Scholar
  4. Bondarev VN, Rokos SI, Kostin DA, Dlugach AG, Polyakova NA (2002) Underpermafrost accumulations of gas in the upper part of the sedimentary cover of the Pechora Sea (in Russian). Geol Geophys 43(7):587–598Google Scholar
  5. Cressie NAC (1991) Statistics for spatial data. Wiley, New York, p 900Google Scholar
  6. Gataulin V, Mangerud J, Svendsen JI (2001) The extent of the late Weichselian ice sheet in the southeastern Barents Sea. Glob Planet Change 31:453–474Google Scholar
  7. Ginsburg GD, Soloviev VA (1994) Submarine gas hydrates. VNIIOkeangeologia (in Russian). St. Petersburg, p 199Google Scholar
  8. Grigoriev MN (1993) Cryomorphogenesis of the Lena River mouth area (in Russian). Permafrost Institute Press SB RAS, Yakutsk, p 176Google Scholar
  9. Hinz K, Delisle G, Block M (1998) Seismic evidence for the depth extent of permafrost in shelf sediments of the Laptev Sea, Russian Arctic? In: Lewkowicz AG, Allard M (eds) Proceedings of the 7th international conference on permafrost, June 23–27 1998, Yellowknife, pp 453–458Google Scholar
  10. Hubberten H-W, Romanovskii NN (2001) Terrestrial and offshore permafrost evolution of the Laptev Sea region during last Pleistocene-Holocene glacial-eustatic cycle. In: Paepe R, Melnikov V (eds) Permafrost response on economic development, environmental security and natural resources. Proceedings of the NATO-ARW, Novosibirsk. Kluwer, Dordrecht, pp 43–60Google Scholar
  11. Hubberten H-W, Romanovskii NN (2003) The main features of permafrost in the Laptev Sea region, Russia—a review. In: Proceeding of the 8th international conference on permafrost, Zurich, pp 431–436Google Scholar
  12. Journel AG, Huijbregts C (1978) Mining geostatistics. Academic, p 600Google Scholar
  13. Kassens H, Bauch H, Drachev S, Gierlichs A, Niessen F, Taldenkova E, Roudoy A, Thiede J, Wessels M (2000) Transdrift VIII expedition to the Laptev Sea: the shelf drilling campaign of “Laptev Sea System 2000”. In: Sixth workshop on Russian–German cooperation: Laptev Sea system. Terra Nostra 2000, vol 8, pp 39–40Google Scholar
  14. Leibman MO, Vasiliev AA, Rogov VV, Ingolfsson O (2000) Study of massive ground ice of Yugorsky peninsula with crystallographic methods (in Russian). Earth Cryosphere 4(2):31–40Google Scholar
  15. Niessen F , Gierlichs A, Weigelt E, Jokat W (1999) High-resolution seismic and sediment echosounding investigation of submarine permafrost on the Laptev Sea shelf. In: Fifth workshop on Russian–German cooperation: Laptev-Sea System 2000, Abstracts. Terra Nostra 99/11Google Scholar
  16. Rachor E (ed) (1997) Scientific cruise report of the Arctic expedition ARK-XI/1 of RV “Polarstern” in 1995. Rep Polar Res 226:157Google Scholar
  17. Schwamborn G, Schneider W, Grigoriev M, Rachold V, Antonov M (1999) Sedimentation and environmental history of the Lena Delta. Rep polar Res 315:94–145Google Scholar
  18. Soloviev VA, Ginsburg GD, Telepnev EV, Mikhalyuk Yu N (1987) Cryothermy and hydrates of the nature gas within North Polar Ocean (in Russian). Sevmorgeologiya, Leningrad, p 150Google Scholar
  19. Vasiliev AA, Cherkashov GA, Vanstein BG, Firsov YG, Ivanov MV (2002) Coastal dynamics in Mare-Sale, Kara Sea: a new observation program. Rep Polar Mar Res 413:78–79Google Scholar
  20. Vasiliev A, Kanevskiy M, Cherkashov G, Vanshtein B (2004) Coastal dynamics at the Barents and Kara Sea key sites. Geo Mar Lett (in press)Google Scholar
  21. Zhigarev LA (1997) Oceanic cryolithozone (in Russian). MSU Publications, Moscow, p 320Google Scholar
  22. Zhigarev LA, Suhodol’skaya LA, Chernyad’ev VP (1982) Cryolithozone of the Arctic seas in the Late Pleistocene and Holocene (in Russian). MSU Letters 93Google Scholar
  23. Zinchenko AG, Leibman MO, Firsov Yu G, Vanstein BG (2004) Formation of thermodenudation relief in the coastal zone in connection with tectonics, Yugorsky peninsula, Kara Sea. Rep Polar Mar ResGoogle Scholar

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • P. Rekant
    • 1
  • G. Cherkashev
    • 1
  • B. Vanstein
    • 1
  • P. Krinitsky
    • 1
  1. 1.Institute for Geology and Mineral Resources of the Ocean (VNIIOkeangeologia)St. PetersburgRussia

Personalised recommendations