Analysis of dislocations in sand units of the Onega structure reveals seismic impacts, indicating soft sediment deformation processes.
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.
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Полещук et al. (2025) studied this question.
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