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Article

Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls

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Skolkovo Innovation Center, Skolkovo Institute of Science and Technology, 30, Build. 1, Bolshoi Boulevard, 121205 Moscow, Russia
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V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, 690041 Vladivostok, Russia
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Author to whom correspondence should be addressed.
Academic Editors: Jesus Martinez-Frias and Christina Biasi
Geosciences 2021, 11(9), 393; https://doi.org/10.3390/geosciences11090393
Received: 10 August 2021 / Revised: 2 September 2021 / Accepted: 15 September 2021 / Published: 17 September 2021
(This article belongs to the Special Issue Permafrost and Gas Hydrate Response to Ground Temperature Rising)
Gas-emission craters discovered in northern West Siberia may arise under a specific combination of shallow and deep-seated permafrost conditions. A formation model for such craters is suggested based on cryological and geological data from the Yamal Peninsula, where shallow permafrost encloses thick ground ice and lenses of intra- and subpermafrost saline cold water (cryopegs). Additionally, the permafrost in the area is highly saturated with gas and stores large accumulations of hydrocarbons that release gas-water fluids rising to the surface through faulted and fractured crusts. Gas emission craters in the Arctic can form in the presence of gas-filled cavities in ground ice caused by climate warming, rich sources of gas that can migrate and accumulate under pressure in the cavities, intrapermafrost gas-water fluids that circulate more rapidly in degrading permafrost, or weak permafrost caps over gas pools. View Full-Text
Keywords: Arctic permafrost; explosive gas emission; crater; ice-rich clay; ground ice; intrapermafrost cavity; cryopeg; methane; Yamal Peninsula Arctic permafrost; explosive gas emission; crater; ice-rich clay; ground ice; intrapermafrost cavity; cryopeg; methane; Yamal Peninsula
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MDPI and ACS Style

Chuvilin, E.M.; Sokolova, N.S.; Bukhanov, B.A.; Davletshina, D.A.; Spasennykh, M.Y. Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls. Geosciences 2021, 11, 393. https://doi.org/10.3390/geosciences11090393

AMA Style

Chuvilin EM, Sokolova NS, Bukhanov BA, Davletshina DA, Spasennykh MY. Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls. Geosciences. 2021; 11(9):393. https://doi.org/10.3390/geosciences11090393

Chicago/Turabian Style

Chuvilin, Evgeny M., Natalia S. Sokolova, Boris A. Bukhanov, Dinara A. Davletshina, and Mikhail Y. Spasennykh 2021. "Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls" Geosciences 11, no. 9: 393. https://doi.org/10.3390/geosciences11090393

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