Email this article The fault system controlling methane seeps on the shelf of the Laptev Sea
- Authors: Baranov B.V.1, Lobkovsky L.I.1, Dozorova K.A.1, Tsukanov N.V.1
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Affiliations:
- P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
- Issue: Vol 486, No 3 (2019)
- Pages: 354-358
- Section: Geophysics
- URL: https://journals.eco-vector.com/0869-5652/article/view/13495
- DOI: https://doi.org/10.31857/S0869-56524863354-358
- ID: 13495
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Abstract
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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About the authors
B. V. Baranov
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Author for correspondence.
Email: bbaranov@ocean.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
L. I. Lobkovsky
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: bbaranov@ocean.ru
Corresponding Member of the Russian Academy of Sciences
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997K. A. Dozorova
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: karina.dozorova@yandex.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
N. V. Tsukanov
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: bbaranov@ocean.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
References
- Юсупов В.И., Салюк А.Н., Карнаух В.Н., и др. // ДАН. 2010. Т. 430. № 6. С. 820-823.
- Shakhova N., Semiletov I., Sergienko V., et al. // Phil. Trans. Roy. Soc. 2015. A373: 20140451.
- Драчев С.С. // Геотектоника. 2000. № 6. С. 43-56.
- Лобковский Л.И., Никифоров С.Л., Дмитрев-ский Н.Н. и др. // Океанология. 2015. Т. 55. № 2. С. 312-320.
- Шипилов Э.В., Лобковский Л.И., Кононов М.В. В кн.: Проблемы тектоники и геодинамики земной коры и мантии. Т. 2. Материалы I Тектон. совещ. М.: Геос, 2018. С. 336-341.
- Флинт М.В., Поярков С.Г., Римский-Корсаков Н.А. // Океанология. 2018. № 2. С. 434-436.
- Пискарев А. Л. Арктический бассейн (геология и морфология). СПб.: ВНИИОкеангеология, 2016. 291 с.
- Рекант П.В., Гусев Е.А. // Проблемы Арктики и Антарктики. 2009. № 2 (82). С. 85-94.
- Анохин В.М., Гусев Е.А. В кн.: Вестник Томского Государственного Университета, Приложение № 3 (I). Материалы научной конференции “Проблемы геологии и географии Сибири”. Томск, 2003. С. 21-23.
- Романовский Н.Н., Елисеева А.А., Гаврилов А.В. и др. // Криосфера Земли. 2006. Т. X. № 1. С. 29-38.
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