Geologicheskii Vestnik

In the section of Upper Riphean deposits along the Chernaya River, located on the southern outskirts of the Minyar town in the Chelyabinsk region, in the sandstones of the Bederysh Subformation of the Zilmerdak Formation, located in the form of interlayers among the thickness of argillites and siltstones, unusual incised bodies of various shapes were discovered, indicating their storm genesis. In combination with other sedimentological features of the sedimentary rocks of this section, such as the presence of suspected paleosoils, the presence of bacterial structures of the Kinneyia type, indicating the sublittoral zone of sedimentation; the presence of glauconite formed by the possible admixture of volcanic ash material, as well as chammocky bedding in the limestone interlayer, a transgressive sedimentation trend from continental conditions to the middle and deep shelf zone was reconstructed.

Southern Urals, Zilmerdak Formation, Bederysh Subformation, traces of runoff jets, storm deposits, glauconite

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