Reconstruction of the Salt Structures Development on the Verkhnekamskoye Salt Deposit

G. P. Shcherbinina, G. V. Prostolupov, S. G. Bychkov

Abstract


The article highlights some issues of geology and genesis of structural forms of the Verkhnekamskoye Salt Deposit (Perm krai). On the example of the Popovskiy salt dome location, the results of detailed studies and analysis of data on the geological structure of sedimentary strata and their morphology are presented. The reconstruction of the evolution of salt structures, the uplifts and depressions was carried out. The main factors and mechanisms, which controlled the development of a modern tectonic structure of this territory, were determined. Significant role in formation of the modern tectonic features of the upper part of the sedimentary cover played the accumulation in the Kungurian age of the Permian the ductile salt rocks, which, at the Late Paleozoic - Early Mesozoic subsequent stages of the territory evolution, determined the increased tectonic mobility of salt and supra-salt deposits, and the formation of high-amplitude uplifts and basins. Differences in tectonogenesis of the upper part of the sedimentary cover, comprising the ductile salt-bearing strata and the underlying rigid rocks, led to the division of the sedimentary cover of the Solikamskaya depression of the Cis-Ural trough into two tectonic stages. The lower level includes uplifts representing the draping structures of the Fransian-Tournaisian reef massifs and brachianticline folds of longitudinal compression, and the upper level comptises the structures formed as a result of the halokinesis of plastic rocks.

Keywords


Verkhnekamskoye deposit; salt tectonics; salt dome; basin; structure-forming processes; reef massif; gravimetry

References


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DOI: http://dx.doi.org/10.17072/psu.geol.22.1.80

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