Aidaralash

Aidaralash is a creek located in the Aktobe region of Ural mountains. The Global Boundary Stratotype Section and Point (GSSP) for Carboniferous-Permian boundary and base for the Asselian period is located here.[1][2][3][4][5]

References
  1. Fedorowski, Jerzy; Bamber, E. W.; Stevens, Calvin H. (August 1, 2007). Lower Permian Colonial Rugose Corals, Western and Northwestern Pangaea: Taxonomy and Distribution. NRC Research Press. ISBN 9780660196640 – via Google Books.
  2. Gradstein, F. M.; Ogg, J. G.; Schmitz, Mark; Ogg, Gabi (August 14, 2012). The Geologic Time Scale 2012. Elsevier. ISBN 9780444594259 – via Google Books.
  3. https://stratigraphy.org/gssps/files/asselian.pdf
  4. Ogg, J. G.; Ogg, Gabi; Gradstein, F. M. (May 13, 2016). A Concise Geologic Time Scale: 2016. Elsevier. ISBN 9780444594686 – via Google Books.
  5. "Gzhelian Stage | geology". Encyclopedia Britannica.


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