Monographs

A fundamentally new mechanism of deformation of the earth's crust under uniaxial horizontal compression, which occurs during the horizontal movement of crustal masses, is proposed. The deformations are carried out by the “thrust-longitudinal bend” tectono-pair: by thrusts, the crust is divided into blocks of positive and negative bend, which determined the name “block folding”.

Definitions of the most frequently used terms and basic concepts in stratigraphy are given. Requirements for zonal biochronological scales are formulated, a program for the construction and unification of zonal biochronological scales with a high correlation potential is developed. It is proposed to limit the use of ordinary, physical time in stratigraphic practice and use for time comparisons chronological, event scales constructed on the basis of the evolutionary sequence of organism species.

The results of studies are presented, during which a significant amount of new geological and geophysical data on the basement of the eastern part of the Khanty-Mansiysk Autonomous Okrug - Yugra (KhMAO) was obtained. Based on a comprehensive geological and geophysical analysis, a geological map of the pre-Jurassic basement of the east of the Khanty-Mansiysk Autonomous Okrug (scale 1 : 500000) was compiled with an inset on a scale of 1 : 20

Information is given on the lithogeochemical features of sandstones and clayey rocks composing the sedimentary sequences of the Yuryuzano-Sylvinskaya and Belskaya depressions of the Cis-Ural trough. It is shown that the chemical composition of sandstones corresponds to typical greywackes and Fe-sandstones.