Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf

L. I. Lobkovskiy, S. L. Nikiforov, N. N. Dmitrevskiy, N. V. Libina, I. P. Semiletov, R. A. Ananiev, A. A. Meluzov, A. G. Roslyakov

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In 2011 and 2012, the interdisciplinary oceanic cruises of the R/V Akademik M.A. Lavrent’ev and R/V Viktor Buinitskii were conducted in the framework of the project of targeted basic research of the Russian Foundation for Basic Research. These studies identified strong methane jets because of the degradation of submarine permafrost rocks (SPRs), which is related to paleogeographical and modern factors of formation of the upper sedimentary sequence and also to structural peculiarities of the Arctic region. Large gas and water volumes are formed at the expense of the SPR defrosting; move along the upper sedimentary shelf sequence and along the surface of one or another layer (from coastal warmed areas to cooler deep areas); and form horizontally elongated convective cells, which activates destruction even at negative bottom temperatures. The methane emission will increase and become massive during the continuing SPR degradation.

Original languageEnglish
Pages (from-to)283-290
Number of pages8
JournalOceanology
Volume55
Issue number2
DOIs
Publication statusPublished - 1 Mar 2015
Externally publishedYes

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shelf sea
permafrost
degradation
methane
gas
rock
sedimentary sequence
temperature
water

ASJC Scopus subject areas

  • Oceanography

Cite this

Lobkovskiy, L. I., Nikiforov, S. L., Dmitrevskiy, N. N., Libina, N. V., Semiletov, I. P., Ananiev, R. A., ... Roslyakov, A. G. (2015). Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf. Oceanology, 55(2), 283-290. https://doi.org/10.1134/S0001437015010129

Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf. / Lobkovskiy, L. I.; Nikiforov, S. L.; Dmitrevskiy, N. N.; Libina, N. V.; Semiletov, I. P.; Ananiev, R. A.; Meluzov, A. A.; Roslyakov, A. G.

In: Oceanology, Vol. 55, No. 2, 01.03.2015, p. 283-290.

Research output: Contribution to journalArticle

Lobkovskiy, LI, Nikiforov, SL, Dmitrevskiy, NN, Libina, NV, Semiletov, IP, Ananiev, RA, Meluzov, AA & Roslyakov, AG 2015, 'Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf', Oceanology, vol. 55, no. 2, pp. 283-290. https://doi.org/10.1134/S0001437015010129
Lobkovskiy LI, Nikiforov SL, Dmitrevskiy NN, Libina NV, Semiletov IP, Ananiev RA et al. Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf. Oceanology. 2015 Mar 1;55(2):283-290. https://doi.org/10.1134/S0001437015010129
Lobkovskiy, L. I. ; Nikiforov, S. L. ; Dmitrevskiy, N. N. ; Libina, N. V. ; Semiletov, I. P. ; Ananiev, R. A. ; Meluzov, A. A. ; Roslyakov, A. G. / Gas extraction and degradation of the submarine permafrost rocks on the Laptev Sea shelf. In: Oceanology. 2015 ; Vol. 55, No. 2. pp. 283-290.
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