On the Problem of the Origin of Dislocations in Holocene Sandy Sediments of the Onega Structure, in the Baltic Shield

Dislocations of loose sandy (probably Holocene) sediments have been distinguished in the southeastern margin of the Baltic Shield in area of the Petrozavodsk Basin. The disjunctive faults have normal fault kinematics. The typical features of their spatial orientation, which coincide with the orientation of latitudinal Paleoproterozoic faults, the valley of the Shuya River, and esker ranges, are described. Possible hypotheses are considered and the model of their formation is presented. The consistent orientation of studied dislocations with ancient faults indicates a tectonic origin and long-lived character of processes, which occur within the southeastern margin of the Baltic Shield of the East European Platform.