Archives → 2022 → Vol. 62, № 1 → pp. 96-110
Article
Natural Radionuclides (226Ra, 232Th, 40K) in the Soil-Forming Rocks of the European Territory of Russia
E. V. Mingareeva1,2, B. F. Aparin1, S. V. Korovin2, N. I. Sanzharova2, E. Yu. Sukhacheva1
1 V.V. Dokuchaev Soil Science Institute, 119017, Moscow, Pyzhevsky lane, 7 2Russian Institute of Radiology and Agroeclogy, Obninsk, Russia
Abstract
Ranges and average values of the specific activity of natural radionuclides (226Ra, 232Th and 40K) in the main lithological types of parent rocks (red-brown clays, loess, cover, glacial, lake-glacial, fluvioglacial, alluvial deposits and eluvo – deluvial carbonate sediments) have been established. The lowest content of radionuclides is characteristic of alluvial and fluvioglacial deposits, and the highest is in lake-glacial, eluvo-deluvial carbonate sediments and moraines. The inheritance of natural radionuclides by soil-forming rocks from weathering crusts was revealed, which is most clearly manifested for rocks of glacial genesis and eluvo-deluvial of carbonate deposits. The relationship between the content of radionuclides and fractions of particle size distribution has been established.
Keywords
natural radionuclides, soil-forming rocks, weathering crust
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