The Carbonate Massif of Voskresenka Mount in the Southern Pre-Urals: Age and Development of the Submerged Carbonate Platform |
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| Authors: | E N Gorozhanina V M Gorozhanin T N Isakova |
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| Institution: | 1.Institute of Geology, Ufa Science Center,Russian Academy of Sciences,Ufa,Russia;2.Geological Institute,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | In the conjunction zone of the East European Platform and the Uralian foredeep, involved in structures of the Southern Urals (Bashkiria), sediments deposited at the shelf zone edge in the Late Carboniferous–Early Permian crop out. The Upper Carboniferous bioherm and Lower Permian deep marine–shelf boundary limestones, composing Voskresenka Mount near Tabynsk township, were studied. Results of the complex analysis of lithofacies, paleontological, structural, and also geological and geophysical data show that the Voskresenka carbonate massif, previously attributed to a single reef structure, represents the SW-dipping tectonic horst block, composed of Upper Carboniferous shelf–bioherm limestones, which is uplifted in a near break zone. As a result of tectonic processes, the edge of the late Carboniferous carbonate platform, overlain by Asselian deep-water sediments, was exhumed. The sedimentary succession shows that the paleogeographic setting at the margin of the East European Craton changed at the Carboniferous–Permian boundary during the formation of the Ural collisional orogen. |
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