Dislocations in Late Pleistocene loose deposits of the Onega structure as a result of seismic impact
https://doi.org/10.55959/MSU0579-9406-4-2025-64-4-15-24
Abstract
On the south-eastern edge of the Baltic Shield in the north-western part of the Onega structure, dislocations previously attributed to slump folds were identified in the sand unit, and their detailed description was carried out. It was established that these formations form a paragenesis of soft sediment deformation structures. Possible hypotheses are considered and a seismogenic model of their formation is proposed.
About the Authors
A. V. Poleshchuk
Geological Institute RAS
Russian Federation
Russian Federation
Anton V. Poleshchuk
Moscow
D. S. Zykov
Sergeev Institute of Environmental Geoscience RAS; Geological Institute RAS
Russian Federation
Russian Federation
Dmitriy S. Zykov
Moscow
A. O. Agibalov
Lomonocov Moscow State University; Schmidt Earth Physics Institute RAS
Russian Federation
Russian Federation
Aleksey O. Agibalov
Moscow
K. M. Sedaeva
Lomonosov Moscow State University
Russian Federation
Russian Federation
Kulyash M. Sedaeva
Moscow
A. A. Sentsov
Schmidt Earth Physics Institute RAS
Russian Federation
Russian Federation
Aleksey A. Sentsov
Moscow
References
1. Ивашнев О.Е. Механизм неустойчивости Рихтмайера-Мешкова // Механика жидкости и газа. 2011. № 4. С. 13–23.
2. Никонов А.А., Полещук А.В., Зыков Д.С. О новейших разрывах и палеосейсмодислокациях в Онежской палеопротерозойской структуре Балтийского щита (Восточно-Европейская платформа) // Труды КарНЦ РАН. 2017. № 11. С. 3–18.
3. Шполянская Н.А. Конвективная природа дислокаций в отложениях с пластовыми льдами на севере Западной Сибири // Геоэкология. Инженерная геология. Гидрогеология. Геокриология. 1993. № 3. С. 94–103.
4. Belzyt S., Pisarska-Jamrozy M., Bitinas A., et al. Repetitive Late Pleistocene soft-sediment deformation by seismicity-induced liquefaction in north-western Lithuania // Sedimentology. 2021. V. 68, No. 7. P. 3033–3056.
5. Johnson H.D. Sedimentation and water-escape structures in some Late Precambrian shallow marine sandstones from Finnmark, North Norway // Sedimentology. 1977. V. 24. P. 389–411.
6. Shelekhova T.S., Svetov S.A., Medvedev P.V. Trip to Girvas. Lateglacial–Interglacial transition: glaciotectonic, seismo- activity, catastrophic hydrographic and landscape changes. Petrozavodsk: Karelian Research Centre of Russian Academy of Science, 2018. P. 24–37.
7. Sims J.D. Earthquake-induced structures in sediments of Van Norman Lake, San Fernando, California // Science. 1973. V. 182. P. 161–163.
8. Selley R. Applied Sedimentology. San Diego: Academic Press, 2000. 523 p.
9. Vandenberghe J. Cryoturbation structures // The Encyclopedia of Quaternary Science. 2013. P. 430–435.
10. Van Loon A.J., Pisarska-Jamrozy M., Woronko B. Sedimentological distinction in glacigenic sediments between load casts induced by periglacial processes from those induced by seismic shocks // Geol. Quart. 2020. V. 64, No. 3. P. 626–640.
Review
For citations:
Poleshchuk A.V., Zykov D.S., Agibalov A.O., Sedaeva K.M., Sentsov A.A. Dislocations in Late Pleistocene loose deposits of the Onega structure as a result of seismic impact. Moscow University Bulletin. Series 4. Geology. 2025;64(4):15-24. (In Russ.) https://doi.org/10.55959/MSU0579-9406-4-2025-64-4-15-24
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