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The Timan-Pechora basin. The structure and main stages of development

A.V. Stoupakova

Original article

DOI http://doi.org/10.18599/grs.19.7

56-64
rus.

open access

Under a Creative Commons license

The lack of complete inheritance in the history of the Timan-Pechora basin development has led to a discrepancy between the basement surface plans and the individual sub-levels and their complexes. In the lower part of the section, the structures inherit the relief of the basement, where large, hundreds of square kilometers, uplifts and depressions stand out. At the base of the Upper Devonian complex, most uplifts are smoothed out. The ancient basins are leveled and in the sediments of the Middle and Upper Paleozoic, as a rule, they correspond to the inverse swells and linear anticlines that are flattening with depth. In connection with the inconsistency of structural plans, the zoning of the Timan-Pechora basin is carried out separately along the Lower Paleozoic and Upper Paleozoic complexes. The roof of the Viseian-Lower Permian carbonate complex was the modern structure of the sedimentary cover that most suitable for zoning. The structure of the section of the Timan-Pechora basin made it possible to single out four large stages of its formation. The early, aulakogene stage of development falls on the Riphean – Lower-Middle Devonian period. The second stage – syneclise – covers the Upper Devonian-Lower Carboniferous period, including the Tournaisian and the beginning of the Visean ages. Then follows the inversion stage of the basin development, which lasted during the Early Carboniferous-Early Permian time and late stage, which corresponds to the Mesozoic stage, during which erosion processes of the sedimentary cover prevailed. The analysis of the tectonic structure and history of the development of the Timan-Pechora basin formed the basis for all subsequent models for the formation of hydrocarbon systems and allowed more reliable estimation of the results of special studies aimed at the evaluation of hydrocarbon resources difficult to recover in the Domanic strata and still poorly studied structures of the Pre-Ural fore deep.

Timan-Pechora basin, Pechora-Kolvinsky avlakogene, Bolshezemelsky arch, Khoreyver depression, Varandey-Adzvinsky structured zone, Ural marginal trough, structured levels

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Lomonosov Moscow State University, Moscow, Russia

For citation:

Stoupakova A.V. Physical and Lithological Properties Oligocene-Miocene Formations of The Okhotsk-Kamchatka Basin (To 85-th Anniversary of Professor Yuri Konstantinovich Burlin). Georesursy = Georesources. 2017. Special issue. Part 1. Pp. 56-64. DOI: http://doi.org/10.18599/grs.19.7