Vasil'chuk J.Y., Krechetov P.P., Litvinskiy V.A. —
Isotope and geochemical composition of carbonate soil new growths of the Julukul basin, the Altai Mountains
// Arctic and Antarctica. – 2016. – ¹ 1.
– P. 104 - 115.
DOI: 10.7256/2453-8922.2016.1.21331
URL: https://en.e-notabene.ru/arctic/article_21331.html
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Abstract: The research subject is carbonate dripstones and pendants on the lower surfaces of coarse clastic rocks, typical for the regions with sharply continental arid climate. Calcareous crusts, pendants, are complex bedded bodies, containing both carbonate and silicate materials with thin patches of organic material. The width of pendants varies from 2 to 7 mm. The studied new growths are located within the cryoarid soils’ profiles of the Julikul basin. The key characteristics of isotope and geochemical composition of carbonate pendants are: the oxygen and carbon isotopes composition and the gross number of macro- and micro elements. The research methods include: the mass-spectrometer measurement of the isotope composition, the x-ray and fluorescence analysis of the gross number of macro- and micro elements, the gas-volume method of measurement of disperse carbonates ratio in soils and the method of ion chromatography for the measurement of water-soluble carbonates. The authors characterize the isotope and element composition of carbonate pendants. Carbonate new growths in cryoarid soils are presented basically by calcium carbonates, but the materials of new growths often contain silicon, aluminium and ferrum. Among the measured materials, MN, Sr, Cu and Cr have the most significant concentrations. There is a tendency to the weighing of the isotope composition of carbon and the lighting of the isotope composition of carbon from the internal to the external layers of carbonate pendants. These data prove that the environmental conditions were changing during the pendants formation.