Content of radionuclides (226Ra, 232Th, 40K, 137Cs) in soils of the North-West region of Russia formed on three types of soil forming rocks. / Mingareeva, Elena; Aparin, Boris; Sukhacheva, Elena; Sanzharova, Natalia; Shevchuk, Evgeny; Terleev, Vitaly; Nikonorov, Aleksandr; Akimov, Luka.
In: E3S Web of Conferences, Vol. 175, 09018, 29.06.2020.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Content of radionuclides (226Ra, 232Th, 40K, 137Cs) in soils of the North-West region of Russia formed on three types of soil forming rocks
AU - Mingareeva, Elena
AU - Aparin, Boris
AU - Sukhacheva, Elena
AU - Sanzharova, Natalia
AU - Shevchuk, Evgeny
AU - Terleev, Vitaly
AU - Nikonorov, Aleksandr
AU - Akimov, Luka
N1 - Publisher Copyright: © The Authors, published by EDP Sciences, 2020. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/6/29
Y1 - 2020/6/29
N2 - The results of a study of the content of natural radionuclides (NR) (226Ra, 232Th, 40K) and technogenic 137Cs in soil samples formed on the most common types of soil-forming rocks of the North-West: lakeglacial (non-boulder and tape clay), glacial and water-glacial deposits are presented. Soil sections laid in the Pskov, Novgorod and Leningrad regions. The granulometric composition in the upper part of the soil profile is lighter than in the parent rock. This is reflected in the NR content in the profile of these soils: with a decrease in the fractions of physical clay and silt, the content of 226Ra, 232Th and 40K decreases. This is due to the fixation of natural radionuclides by secondary clay minerals. According to the increase in the average specific activity of all NRs, the soils form the following sequence: soils on water-glacial deposits soils on moraines - soils on lake-glacial deposits. A comparison of the average specific activity of natural radionuclides and their ranges in the upper part of the soil (0-5, 5-10 and 10-20 cm) and in the parent rock (90-100 cm) revealed a higher content of radionuclides in parent rocks (lake-glacial and moraine deposits). In the soils on water-glacial deposits, no significant difference was found.
AB - The results of a study of the content of natural radionuclides (NR) (226Ra, 232Th, 40K) and technogenic 137Cs in soil samples formed on the most common types of soil-forming rocks of the North-West: lakeglacial (non-boulder and tape clay), glacial and water-glacial deposits are presented. Soil sections laid in the Pskov, Novgorod and Leningrad regions. The granulometric composition in the upper part of the soil profile is lighter than in the parent rock. This is reflected in the NR content in the profile of these soils: with a decrease in the fractions of physical clay and silt, the content of 226Ra, 232Th and 40K decreases. This is due to the fixation of natural radionuclides by secondary clay minerals. According to the increase in the average specific activity of all NRs, the soils form the following sequence: soils on water-glacial deposits soils on moraines - soils on lake-glacial deposits. A comparison of the average specific activity of natural radionuclides and their ranges in the upper part of the soil (0-5, 5-10 and 10-20 cm) and in the parent rock (90-100 cm) revealed a higher content of radionuclides in parent rocks (lake-glacial and moraine deposits). In the soils on water-glacial deposits, no significant difference was found.
UR - http://www.scopus.com/inward/record.url?scp=85087860631&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/202017509018
DO - 10.1051/e3sconf/202017509018
M3 - Conference article
AN - SCOPUS:85087860631
VL - 175
JO - E3S Web of Conferences
JF - E3S Web of Conferences
SN - 2555-0403
M1 - 09018
T2 - 13th International Scientific and Practical Conference on State and Prospects for the Development of Agribusiness, INTERAGROMASH 2020
Y2 - 26 February 2020
ER -
ID: 72747416