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Mykhaylychenko S.M. TEKTONO-SEDIMENTATSIONNY FACTORS AND ELEMENTS OF CONTROL OF CONDITIONS OF A BEDDING NIZHNEPERMSKIKH OF FLISHOID OF THE ORENBURG PART OF THE PREURAL DEFLECTIONIn the conditions of natural deterioration of hydrocarbons and exhaustion of their stocks search of new fields is necessary for development and operation. Perspective objects for search of new sources of hydrocarbons are nizhnepermsky flishoida of the Preural deflection. Their litologo-facial characteristic is for this purpose considered. In the regional tectonic plan the area of research is located on a joint three large the nadporyadkovykh of tectonic structures: advanced folds of the Ural orogen, Volga-Ural antekliza and Caspian syneclise. As a result of research the main tektono-sedimentatsionny factors influencing thickness the nizhnepermskikh of flishoid of the Orenburg part of the Preural deflection are allocated: the tectonic movements konsedimentatsionny (covering and Ural ороген); tectonic movements postsedimentatsionny; development of the Volga-Ural carbonate platform and its onboard ledges. The basic tektono-sedimentatsionny elements controlling conditions of a bedding and lithologic structure the nizhnepermskikh of flishoid within the South of the Preural deflection are: onboard ledge Devonian нижнепермского age of the Volga-Ural carbonate platform; noncompensated hollow of nizhnepermsky age; Syurensky vzbroso-nadvig; zone of development of carbonates of an asselsky circle; large tectonic blocks of the base; the even-aged noncompensated hollow limited to a sedimentatsionny onboard ledge. Thus, nizhnepermsky flishoida of the Orenburg part of the Preural deflection are perspective objects for search of nonconventional sources of hydrocarbonic raw materials — bitumoid and slate gas.Key words: Preural deflection, Ural, nizhnepermsky flishoida, sedimentatsionny onboard ledge, noncompensated hollow, Syurensky vzbroso-nadvig, Volga-Ural carbonate platform, tektono-sedimentatsionny factors and elements.
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About this article
Author: Mihaylichenko S.M.
Year: 2015
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Editor-in-chief |
Sergey Aleksandrovich MIROSHNIKOV |
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