... magnetostratigraphic section of southern West Siberia (Omsk depression) . Dokl. Earth Sci. 458 ( 1 ), 1107 – 1111 . Gnibidenko , Z.N. , Lebedeva , N.K. , Levicheva , A.V. , 2015 . Magnetostratigraphy of the Campanian-Maastrichtian Bakchar basin...

...-Mansiisk Depression), in the south of the plain (Novosibirsk and Omsk Regions), and in the Ob’ region near Tomsk. Most scientists consider the deposits of the Turtas Horizon to be lacustrine. Shatsky believed that the Turtas lake basin was subsalinc and close in area to a Paleocene sea. It was assumed...

...Fig. 3. Locations of the sections under study in the Omsk depression. ...

... ; author’s data); 4 – Subpolar cis-Urals ( Lebedeva, 2005 ); 5 – Southern Trans-Urals ( Kuzmina et al., 2021 ); 6 – Omsk depression ( Lebedeva and Kuz’mina, 2018 ); 7 – Volgograd region ( Aleksandrova et al., 2012 ); 8 – England ( Costa and Davey, 1992 ); 9 – France ( Foucher, 1975 ); 10 – Germany ( Kirsch...

... of freshwater shells is described from the Atlym Formation of the Omsk Depression, characterized by the presence of West Siberian endemic species of the genus Unio and representatives from the Baikalian and Sinian faunas. Based on the taxonomic composition of the shells, Nikolaev [ 23 ] concluded...

... for beds with P. subrediviva , recognized in the upper Upper Bathonian-Lower Callovian in the north of the Russian Platform [ 17 ]. The index species, easily identifiable by their elongate hastate outline and depressed section, were found in the Lower Kimmeridgian of the Omsk area ( Cylindroteuthis...

... and correlating the Neogene key sections of the Kulunda and Baraba plains, Irtysh regions between Omsk and Pavlodar and near Tara, and Ob’ region near Tomsk. The reliability of paleomagnetic data is confirmed by component analysis of natural remanent magnetization and by a possibility of determining its primary...

..., and paleomagnetic constraints on Lower and Middle Quaternary sediments sampled from a reference section in the Irtysh River valley near Isakovka Village, Omsk region, make basis for updating their stratigraphy and deposition conditions. The Late Cenozoic sediments in the Isakovka outcrops, which have been studied...

... of 1, Russian Federation; 2, administrative (abbreviations on the map: TyumR, south of the Tyumen Region, OmR, Omsk Region, NSR, Novosibirsk Region, TomR, Tomsk Region); 3, Mesozoic sediments; 4, Georgievka Horizon; 5, regions; 6, sub-regions of Purpei-Vasyugan region (I, Verkhnepur, II, Ob-Agan, III...

.... , 2014 . A regional Upper Cretaceous magnetostratigraphic section of southern West Siberia (Omsk depression) . Dokl. Earth. Sci. 458 ( 1 ), 1107 – 1111 . Gradstein , F.M. , Ogg , J.G. , Schmitz , M.D. , Ogg , G.M. , 2012 . The Geologic...

... in southeastern regions of West Siberia, including the Tomsk, Novosibirsk, Omsk regions and the southwest of the Krasnoyarsk Territory in the left-bank part of the Yenisei River. In the process of our studies, we analyzed the tectonic structure of the basement and made a conclusion that most of the studied area...

...Fig. 4. Fades zonation of Triassic deposits in West Siberia. Boundaries of: 1 – West Siberian Plate, 2 – fades regions, 3 – fdes zones; 4 – occurrence of the Tampei Group; 5 – volcanosedimentary filling of rift systems; 6 — volcanosedimentary filling of local depressions and volcanic...

... to 100 m thick (Unified…, 2001 ). The Turtas Formation is located in the northern and central regions of the plain, and the Zhuravka Formation is confined to the southern regions, mainly to the Omsk depression ( Shatskii, 1978 ). The deposits lie conformably or with a slight break at the Novomikhailovka...

... magnetostratigraphic section of southern West Siberia (Omsk depression) . Dokl. Earth Sci. 458 ( 1 ), 1107 – 1111 . Gnibidenko , Z.N. , Lebedeva , N.K. , Levicheva , A.V. , 2015 . Magnetostratigraphy of the Campanian–Maastrichtian Bakchar Basin...

... part of the West Siberian plate. Tectonically the Barabinskaya zone represents a part of the Omsk Depression (Rostovtsev 1955 quoted in Akhmetiev et al. 2004a ). The formation of this depression started during the Mesozoic. Later, during the Eocene, a new, ‘Chanovskaya’, depression developed within...

... megatrough in the west to the Ust’-Tym depression in the east. The second zone occupies the territory of the Nizhnevartovsk, Kaimysov, and eastern Surgut arches, of the Verkhnedem’yansk elongate megaswell, and the Yugan depression. The third zone is within the Khanty-Mansiisk and Nadym megadepressions...