Abstract
The study of rock samples from the Upper Permian Khei-Yaga River section revealed an r-n-r-n-r magnetic polarity succession based on the prefolding characteristic component of natural remanent magnetization. With account for stratigraphic and previous magnetostratigraphic data on Lower Triassic rocks from the Khei-Yaga River section, the examined strata of the Pechora Group (Silova Formation) may be compared with magnetic zones R1P2u and N1P3t in the magnetostratigraphic scale of European Russia. The gap in the paleomagnetic record, which corresponds in the examined section to the interval of the mid-Severodvinian Stage to basal Induan Stage, Zone N1T included, is estimated to be 10 Ma long. It is assumed that this hiatus represents one of the local signs of the global Permian-Triassic crisis.
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Original Russian Text © A.G. Iosifidi, A.N. Khramov, 2009, published in Fizika Zemli, 2009, No. 1, pp. 5–15.
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Iosifidi, A.G., Khramov, A.N. Magnetostratigraphy of Upper Permian sediments in the southwestern slope of Pai-Khoi (Khei-Yaga River section): Evidence for the global Permian-Triassic crisis. Izv., Phys. Solid Earth 45, 3–13 (2009). https://doi.org/10.1134/S1069351309010029
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DOI: https://doi.org/10.1134/S1069351309010029