ON GEODYNAMIC CONDITIONS AND UNDERWATER-LANDSLIDE DEFORMATIONS IN THE ULUTAU FORMATION
To understand the features of geodynamics during the accumulation of the systems of geological matter in the Earth's crust at the formation level of the Paleozoic Urals, this paper presents the author's factual materials on structural characteristics of clastic rocks of the flysch sequence of the Ulutau Formation (Middle Devonian Givetian) within the mapping area of the Urtazym zone of the Magnitogorsk Synclinorium. Here, to the west of the village of Tash-Tugay, rhythmites are developed in the lower reaches of the Tanalyk River that show very informative underwater interlayer dislocations: cross-bedding, spherical and folded structures serving as a decisive marker for the synchronism of sedimentation and dislocation. They characterize the deformation period in the tectonic development of the folded region, according to the main points of the thrust-nappe theory of the formation of the Earth's crust and the scientific research area «structural factor in theoretical geology».