Stratigraphy and physical and mechanical properties of bottom soils in the aquatorial part of the Salmanovsky Field area (northern part of the Ob Bay)

Rokos S.I.¹, Kostin D.A.², Gainanov V.G.³, Kulikov S.N.¹, Skurikhin V.A.¹

STRATIGRAPHY AND PHYSICAL AND MECHANICAL PROPERTIES OF BOTTOM SOILS IN THE AQUATORIAL PART OF THE SALMANOVSKY FIELD AREA (NORTHERN PART OF THE OB BAY)

Relief and Quaternary deposits of the Arctic, Subarctic and North-West Russia. Issue 10.

Download *pdf

doi: 10.24412/2687-1092-2023-10-226-237

¹ JSC "Arctic Marine Engineering-Geological Expeditions", Murmansk, Russia

² Murmansk Arctic University, Murmansk, Russia

³ Lomonosov Moscow State University, Moscow, Russia

Abstract. There are establish that in consequence of engineering-geological surveys for the most part of the Salmanovsky field area is located on an Ancient Holocene marine abrasion-accumulative terrace. There are identified deposits of the Kazanian and Karganian horizons, Ancient Holocene and Recent sediments in the upper interval of the soil stratum to a depth of 50-60 m from the bottom. Ancient Holocene deposits are overconsolidated (overconsolidation ratio more than 2) and have a hard/stiff consistency. The underlying coeval and Karginian deposits have very soft/soft consistency. The logs of properties across geological cross-section is of an inversion nature, due to the variability of sedimentation and diagenesis conditions.

Keywords: Ob Bay, Salmanovsky field, quaternary deposits, bottom soils, absolute age, physical and mechanical properties, overconsolidation ratio

REFERENCES:

Neizvestnov Ya.V., Kozlov S.A., Kondratenko A.V. Variability and heterogeneity of physical and mechanical properties of recent shelf sediments of the seas of the Arctic Ocean // Journal of Mining Institute. 2012. Vol. 197. P. 203-208.

Rokos S.I., Tarasov G.A. Gas-saturated sediments of the lips and bays of the southern part of the Kara Sea // Bulletin of the Commission for the Study of the Quaternary Period. 2007. No. 67. pp. 66-75.

Rokos S.I., Kulikov S.N., Kostin D.A. Subaquatic permafrost rocks of the Ob and Taz bays of the Kara Sea // Cryosphere of the Earth. 2019. Vol. 23. No. 5. P. 17-26. doi: 10.21782/KZ1560-7496-2019-5(17-26)

Slinchenkov V.I., Samoilovich Yu.G., Nikolaev V.V., Konstantinov V.M. The structure of Cenozoic sediments of the northern part of the Ob Bay of the Kara Sea according to acoustic data // Arctic and Antarctic Research. 2009. No. 2(82). P. 106-117.

Unified regional stratigraphic scheme of Quaternary deposits of the West Siberian Plain. Ed. V.S.Volkova, A.E.Babushkin. Novosibirsk, Publishing House SNIIGGiMS, 2000, 64 p.

Cite this article:

Rokos S.I., Kostin D.A., Gainanov V.F., Kulikov S.N., Skurikhin V.A. Stratigraphy and physical and mechanical properties of bottom soils in the aquatorial part of the Salmanovsky Field area (northern part of the Ob Bay) // Relief and Quaternary deposits of the Arctic, Subarctic and North-West Russia. 2023. Issue 10. P. 226-237. doi: 10.24412/2687-1092-2023-10-226-237