Abstract
The native iron particles that were previously detected by thermomagnetic and microprobe analyses in the sediments of different age in many regions of the world are of extraterrestrial origin. The similarity in the compositions, grain shapes, and sizes observed in the extraterrestrial and terrestrial particles of native iron testifies to the common production conditions of iron particles during the formation of planets. In this paper, the single finding of terrestrial iron in the lacustrine sediments of the Zhombolok volcanic region, East Sayan, is discussed. The uniqueness of the results indicates that the spatial distribution of the particles of native iron is limited to a fairly narrow area around their source—volcanic eruption or/and the fall of a large meteorite.
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Original Russian Text © D.M. Pechersky, A.Yu. Kazanskii, G.P. Markov, V.A. Tselmovich, A.A. Shchetnikov, 2018, published in Fizika Zemli, 2018, No. 1, pp. 113–127.
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Pechersky, D.M., Kazanskii, A.Y., Markov, G.P. et al. Unique phenomenon of the accumulation of terrestrial metal iron particles in lacustrine deposits: Zhombolok volcanic region, East Sayan. Izv., Phys. Solid Earth 54, 106–120 (2018). https://doi.org/10.1134/S1069351318010123
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DOI: https://doi.org/10.1134/S1069351318010123