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Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

Proceedings of Gubkin University
Sverdlovsk radial-concentric structure as hydrocarbon accumulation center in plate junction zone

UDC: 553.98:551.24(470.5)
DOI: -

Authors:

DANILOVA EVGENIA A.1,2

1 Bulashevich Institute of Geophysics of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russian Federation
2 Zavaritsky Institute of Geology and Geochemistry of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russian Federation

Keywords: radial-concentric structure, Volga-Ural oil and gas province, satellite image decoding, geological and geophysical data, Russian platform, West Siberian Plate, mantle diapirism, compression, Alpine orogeny, oil and gas fields

Annotation:

The geometry of the main tectonic elements of the Volga-Ural oil and gas province, as well as their location and combination, reflect the framework elements of the southwestern part of a very large radial-concentric structure, the identification and study of which is the aim of this article. In the process of the research, a satellite image was decoded, and geological and geophysical data, information on the tectonic structure, and geomorphology of the studied area were summarized and analyzed. As a result of the work, the Sverdlovsk radial-concentric structure, with a diameter of more than 2400 km, was identified for the first time. This structure includes the eastern part of the Russian platform, the folded Urals, the northern part of the Caspian Depression, a fragment of the Turgay Trough, the western part of the West Siberian Plate, the southern part of the Pechora Syneclise, and the Timan Avlakogeosynclinal folded area. It is hypothesized that this structure is a center for hydrocarbon accumulation, and its genesis is associated with repeated tectonic activations of the region, mantle diapirism, deep pressure, and compression processes during the Alpine orogeny. The Sverdlovsk radial-concentric structure is possibly the parent structure to the previously identified ring structures of the eastern part of the Russian platform (with diameters ranging from 250 to 700 km) and the Surgut structure (with a diameter of more than 300 km) in the western part of the West Siberian Plate mapped by this study. It is recommended to continue exploration for oil and gas within the sectoral blocks of the identified megastructure.

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