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Original Russian Text © A.I. Antoshkina, O.V. Valyaeva, S.I. Isaenko, O.S. Prots’ko, 2012, published in Geokhimiya, 2012, Vol. 50, No. 12, pp. 1154–1160.
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Antoshkina, A.I., Valyaeva, O.V., Isaenko, S.I. et al. Upper Ludfordian black shales as indicators of euxinic conditions, Subpolar Urals. Geochem. Int. 50, 1038–1043 (2012). https://doi.org/10.1134/S0016702912100023
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DOI: https://doi.org/10.1134/S0016702912100023