Lithological Composition of Bottom Sediments in the Area of Fluid Discharge in the Kara Sea
Moroz E.A. Eremenko E.A. Ermakov A.V. Denisova A.P. Drazdova A.V. Ananiev R.A. Arkhipov V.V. Maznev S.V.
August 2025Pleiades Publishing
Doklady Earth Sciences
2025#523Issue 2
Abstract: The results of the lithological and geochemical analysis of bottom sediments collected in the southwestern part of the Kara shelf in the area of development of gas-saturated deposits in a paleovalley at a depth of 112 m are presented. It has been established that the accumulation of the Holocene marine sediments occurred under conditions of fluid inflow as a result of degradation of permafrost and destruction of its gas hydrates, which are apparently suppliers of isotopically heavy waters to the studied strata.
degassing , gas flares , gas hydrates , particle-size distribution analysis , permafrost , seismoacoustics , water isotopic composition
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Geological Institute, Russian Academy of Sciences, Moscow, 119017, Russian Federation
Faculty of Geography, Moscow State University, Moscow, 119991, Russian Federation
Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, 117997, Russian Federation
Zubov State Oceanographic Institute, Moscow, 119034, Russian Federation
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Geological Institute
Faculty of Geography
Shirshov Institute of Oceanology
Zubov State Oceanographic Institute
Al-Farabi Kazakh National University
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