期刊
DOKLADY EARTH SCIENCES
卷 486, 期 1, 页码 571-574出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1028334X19050209
关键词
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资金
- Russian Foundation for Basic Research [18-05-60228]
- Institute of Oceanology, Russian Academy of Sciences, Moscow [0149-2019-0005]
The paper presents data obtained during the 69th and 72nd expeditions of the research vessel Akademik Mstislav Keldysh (2017, 2018). A mechanism of methane discharge that explains the localization of the seep fields in a limited area of the outer shelf and suggesting a system of deep and surface faults is proposed. Along the deep faults, gas fluid is transferred to the upper strata of the sedimentary cover, where it is accumulated below the gas hydrate stability zone and the permafrost horizon. The surface faults of the outer shelf break this caprock, creating conduits for the gas to migrate to the surface and to jet-release into the water column.
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