Abstract—
This paper discusses the results of comprehensive geological, geophysical, and geochemical studies of gas-saturated sediments within the Kandalaksha Bay, the White Sea. The marine study involved detailed seismoacoustic surveys that yielded data on seabed geometry and the geological structure of the sedimentary cover, including the zones of focused unloading of hydrocarbon fluids. Assemblages of gas caps are confined to the zones with a maximum thickness of postglacial sediments. The composition of organic matter in the sediments and the gas phase has been studied in detail.
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Funding
The work was carried out under the Development of Software and Hardware Systems for Prospecting, Exploration, Geophysical and Geochemical Monitoring of the Development of Hydrocarbon Deposits, Including Those Located in the Hard-to-Reach Regions under Extreme Climatic Conditions project with the financial support of the Ministry of Education and Science of the Russian Federation. Agreement on Granting of Subsidies no. 14.607.21.0187 dated September 26, 2017 (unique ID RFMEFI60717X0187).
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Translated by E. Maslennikova
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Tokarev, M.Y., Poludetkina, E.N., Starovoitov, A.V. et al. The Characteristics of Gas-Saturated Deposits of the Kandalaksha Bay, the White Sea, According to Seismoacoustic and Lithogeochemical Studies. Moscow Univ. Geol. Bull. 74, 221–228 (2019). https://doi.org/10.3103/S0145875219020108
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DOI: https://doi.org/10.3103/S0145875219020108