Geologicheskii Vestnik

On the territory of the “Toratau” Geopark there are unique exposures of rhythmically layered carbonate-clay and clay-carbonate-sand rocks of the Lower Permian, which fi ll the Preuralian Foredeep — the structure formed in the Late Carboniferous at the front of the growing folded Urals. They are divided into basinal sediments composed of black and dark gray mudstones, siltstones with interlayers of marls and fi ne-grained limestone, and fl ysch deposits represented by rhythmically layered sand and clay rocks with interlayers of conglomerates and exotic blocks (olistolites) of silicifi ed limestone. The lower Permian fl ych of the Western Urals is an indicator formation associated with the growth of the Ural fold belt as a result of the collision of continents in the early Permian time.

Lower Permian, Preuralian Foredeep, Permian fl ysch formation, olistolite

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