The degradation of submarine permafrost and the destruction of hydrates on the shelf of east arctic seas as a potential cause of the “Methane Catastrophe”: some results of integrated studies in 2011

  title={The degradation of submarine permafrost and the destruction of hydrates on the shelf of east arctic seas as a potential cause of the “Methane Catastrophe”: some results of integrated studies in 2011},
  author={Valentine I. Sergienko and L. I. Lobkovskii and Igor P. Semiletov and Oleg V. Dudarev and N. N. Dmitrievskii and Natalia E Shakhova and Nicolai N. Romanovskii and Denis Kosmach and Dmitrii Nikolaevich Nikol'skii and S. L. Nikiforov and Aleksander Salomatin and R. A. Anan’ev and Alexander Roslyakov and Anatoly Salyuk and V. V. Karnaukh and Denis Chernykh and V. E. Tumskoi and Vladimir I. Yusupov and A. V. Kurilenko and Evgeny Chuvilin and Boris Bukhanov},
  journal={Doklady Earth Sciences},
On the basis of the analysis of published data and in the course of the authors’ long-term geochemical and acoustic surveys performed in 1995–2011 on the East Siberian shelf (ESS) and aimed to research the role of the Arctic shelf in the processes of massive methane outbursts into the Earth’s atmosphere, some crucially new results were obtained. A number of hypotheses were proposed concerning the qualitative and quantitative characterization of the scale of this phenomenon. The ESS is a… 

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

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

Problems of Arctic shelf research: The experience from integrated geologic and geochemical studies in the Laptev Sea

A pronounced irregularity in the formation of the shallow shelf of the Laptev Sea has been shown by the results of integrated geologic and geochemical studies. Considerable salinization was revealed

Thermal conductivity of bottom sediments in the East Siberian Arctic seas: a case study in the Buor-Khaya Bay

Among Arctic carbon reservoirs, subsea permafrost, hydrates, and associated methane (CH4) deposits are the most worrisome owing to high heat transfer from rapidly warming shallow Arctic seas. The

Research of the Upper Sediment Column and Topography of the Sea Bottom in Eastern Arctic Seas on Cruise 78 of the R/V Akademik Lavrent’ev

On cruise 78 of the R/V Akademik Lavrent’ev, employees of the Shirshov Institute of Oceanology, in carrying out expeditionary research, continued a set of operations using high-resolution

The origin of methane in the East Siberian Arctic Shelf unraveled with triple isotope analysis

Abstract. The Arctic Ocean, especially the East Siberian Arctic Shelf (ESAS), has been proposed as a significant source of methane that might play an increasingly important role in the future.

Specific Character of Natural Hazards on High-latitude Sea Transport Passages Europe-Asia-Pacific Region: Challenges for Technosphere Safety

The especial feature of high-latitude marine routes is unusual geodynamic regime of the sea bed and hydrodynamic of waters, caused by a wide spread of a submarine permafrost, enriched with methane

Methane seeps on the outer shelf of the Laptev Sea: characteristic features, structural control, and benthic fauna

Two areas with cold methane seeps on the outer shelf of the Laptev Sea were studied by two interdisciplinary expeditions onboard the RV Akademik Mstislav Keldysh in August–September of 2017 and 2018.

Recent geological–geomorphological processes on the east Arctic shelf: Results of the expedition of the icebreaker Oden in 2014

Results obtained by the International Arctic marine expedition (SWERUS-C3) in June to October of 2014, using advanced seismoacoustic equipment, confirmed the wide distribution of potentially

The Role of Methane and Methane Hydrates in the Evolution of Global Climate

For the first time, functioning of the planetary climate system is considered in terms of the self-organization laws with account of positive and negative feedbacks. It is shown that the maximum



East Siberian Shelf Study alleviates Scarcity of observations

The East Siberian Arctic Shelf (ESAS) is the world's largest continental shelf and also the most understudied part of the Arctic Ocean. Composed of the Laptev Sea, the East Siberian Sea, and the

North Siberian Lakes: A Methane Source Fueled by Pleistocene Carbon

The sizes of major sources and sinks of atmospheric methane (CH4), an important greenhouse gas, are poorly known. CH4 from north Siberian lakes contributes ∼1.5 teragrams CH4 year−1 to observed

The Scientific Basis

With very few exceptions the numerous polymorphs of SiO2 all consist of SiO4 tetrahedra linked through their corners, thus forming three-dimensional framework structures. The topology of the

Nikol ’ skii , and I . P . Semiletov

  • Cryothermy and Natural Gas Hydrates in the Arctic Ocean
  • 2010

Accomplishment and Preliminary Results

  • AGU Fall Meeting, GC51 (San Francisco, 2007). 12. D. Nicolsky and N. Shakhova, Environ. Res. Lett, No. 5, 015006 (2010). 13. I. P. Semiletov, N. E. Shakhova, V. I. Sergienko, et al., Environ. Res. Lett, No. 7, 015201
  • 2012