Results and prospects of geological mapping of the Arctic shelf of Russia

Abstract

The results of compiling the sets of the State Geological Map at a scale of 1:1,000,000 for the Arctic continental shelf of Russia are analyzed. Results are summed up, and the main problems of geological mapping are outlined. The results of geological and geophysical studies of the Arctic Ocean are of great importance for deciphering the geological evolution. The Arctic shelf is the widest shelf in the world, while the spreading ocean basin is one of the narrowest and is characterized by anomalous structural features. The main problems of geological mapping include identification the sedimentary cover/folded basement boundary, interpretation the geodynamic evolution of the shelf and adjacent ocean, determining the rates of sedimentation and stratigraphic subdivision of the sedimentary cover due to a small number of key boreholes. It is promising to further study problem areas with unclear features of geological structure as well as small-scale mapping in areas of industrial development on the Arctic continental shelf.

Potential of High-Carbon Domanik (Upper Devonian) Shale Deposits: Timan-Pechora Oil and Gas Province Assessment

“…A feature of the lithological composition of Domanik deposits is a large amount of free silica, which is also characteristic of deposits in the marginal part of the Timan and the Urals. The excess of silica is probably associated with the introduction of material from the East Ural basin, which was an area of active volcanism during this period (36). The enrichment of the basin waters with silica contributed to the development of organisms with a flint skeleton, in particular, radiolarians.…”

Improving the Efficiency of Radar Method for Monitoring Oil Spills on the Water Surface through the Use of an Active Antenna Array and Cosecant-squared Pattern

“…As a result of analysis of various theoretical sources on the topic of capillary wave damping of water surface by different surfactants (e.g. oil) it is determined that the wave spectrum of water surface in the process of influence by external liquids (pollution) changes irregularly [5][6][7][8].…”

“…For the processes of cosecant diagrams mathematical modelling different combinations of three basic methods of cosecant formation were chosen [32][33][34][35]:…”

Impact of the Regional Pai-Khoi-Altai Strike-Slip Zone on the Localization of Hydrocarbon Fields in Pre-Jurassic Units of West Siberia

“…A marine regime was established in most of the region during the Late Jurassic, coinciding with the deposition of sandy-silt-clay sediments. At the end of the Jurassic period, carbonate-rich and bituminous clay silts were deposited in the marine basin [25,26]. During the same period, active movements occurred along the regional Pai-Khoi-Altai strike-slip zone.…”