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Home Archive of journals Issue 3(39) 2020 Possible seismogenic trigger mechanism of abrupt activation of methane emission and climate warming in the Arctic

POSSIBLE SEISMOGENIC TRIGGER MECHANISM OF ABRUPT ACTIVATION OF METHANE EMISSION AND CLIMATE WARMING IN THE ARCTIC

JOURNAL: 2020, 3(39), p. 62-72

HEADING: Research activities in the Arctic

AUTHORS: Lobkovsky L.I.

ORGANIZATIONS: P. P. Shirshov Institute of Oceanology of the Russian Academy of Sciences

DOI: 10.25283/2223-4594-2020-3-62-72

UDC: 551.24

The article was received on: 08.06.2020

Keywords: permafrost rocks, activation of methane emission, sharp warming of the climate, the great earthquakes, Aleutian subduction zone, tectonic waves, trigger mechanism, metastable gas hydrates, gas filtration

Bibliographic description: Lobkovsky L.I. Possible seismogenic trigger mechanism of abrupt activation of methane emission and climate warming in the Arctic. Arctic: ecology and economy, 2020, no. 3(39), pp. 62-72. DOI: 10.25283/2223-4594-2020-3-62-72. (In Russian).


Abstract:

The author proposes a seismogenic trigger mechanism to explain the abrupt activation of methane emission and climate warming phases in the Arctic as a result of strong mechanical disturbances in the marginal region of the Arctic lithosphere, caused by the great earthquakes in the Aleutian subduction zone, the transfer of these disturbances to the Arctic shelf and adjacent regions, and the trigger effect of the methane release from permafrost sedimentary rocks and metastable gas hydrates with subsequent emissions of greenhouse gas into the atmosphere.


Finance info: The research was performed within the framework of the state assignment of the P.P. Shirshov Institute of Oceanology, RAS (theme no. 0149-2019-0005) and the project of the Russian Science Foundation (grant no. 20-17-00140).

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© 2011-2020 Arctic: ecology and economy
DOI 10.25283/2223-4594