Abstract
Background concentrations of Th and U in volcanic soils (Andosols) of Kamchatka are much lower than their clarkes in continental soils. The dose rate of gamma radiation above the soil surface (10–11.5 µR/h in the south and 8–9.5 [m]R/h in the north of Kamchatka Peninsula) is lower than the natural level of this index for the mountainous areas in the boreal zone of Russia. The natural radiogeochemical background of Kamchatka soils is controlled by the petrochemical composition of volcanic ash composing the mineral basis of Kamchatka soils. It is higher in the southern soil province, where soils develop from acidic ashes, in comparison with the northern province, with a predominance of soils developing from ashes of basic and intermediate composition. This agrees with Th and U clarkes for the corresponding types of volcanic rocks and explains the natural origin of the elevated radiogeochemical background in the southern part of Kamchatka as compared with its northern part. The soils of the northern province developing from relatively fresh volcanic ashes show a lower Th/U ratio as compared to the soils of southern Kamchatka because of higher uranium content in the newly deposited ashes.
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References
Yu. V. Adamchuk, G. A. Karpov, V. A. Maksimovskii, et al., Concentrations of Uranium, Thorium, and Related Elements (Pb, As, Hd, Sr) in Rocks and Mineral Sediments of the Active Hydrothermal Uzon Caldera (Kamchatka) (Central Research Institute of Management, Economics, and Information, Ministry of Atomic Energy of the Russian Federation, Moscow, 1986) [in Russian].
V. I. Andreev, Candidate’s Dissertation in Geology (Novosibirsk, 2011).
O. A. Braitseva, L. D. Sulerzhitsky, V. V. Ponomareva, and I. V. Melekestsev, “Geochronology of the Greatest Holocene explosive eruptions in Kamchatka and their imprint on the Greenland Glacier shield,” Dokl. Earth Sci. 352 (1), 138 (1997).
P. A. Vaganov, S. I. Degtyarev, V. Yu. Kir’yanov, and N. A. Kh. El-Nohi, “Uranium and thorium in volcanic ashes (according to the precision neutron activation analysis),” Tr. Leningr. O-va Estestvoispyt. 80 (2), 116–122 (1989).
N. A. Grigor’ev, “Average concentrations of chemical elements in rocks of the upper continental crust,” Geochem. Int. 41 (7), 711–718 (2003).
L. V. Zakharikhina, “The rate of peat accumulation in the Holocene in Kamchatka,” Eurasian Soil Sci. 47 (6), 556–561 (2014).
L. V. Zakharikhina and Yu. S. Litvinenko, Genetic and Geochemical Features of Soils in Kamchatka (Nauka, Moscow, 2011) [in Russian].
L. O. Karpachevskii, I. O. Alyabina, L. V. Zakharikhina, et al., Soils of Kamchatka (Nedra, Moscow, 2009) [in Russian].
Classification of Soils of Kamchatka (Dokuchaev Soil Science Institute, Moscow, 2004), pp. 57–61.
V. I. Kolchkov, Metrology, Standardization, and Certification: Manual (Forum, Moscow, 2011) [in Russian].
Yu. S. Litvinenko and L. V. Zakharikhina, “Radioecological characteristics of Kamchatka at the background level and in the areas affected by ore mining,” Vestn. Kamchat. Reg. Assots. Ucheb.-Nauch. Tsentr 2 (22), 156–173 (2013).
A. O. Makeev, I. O. Alyabina, O. A. Braitseva, et al., “New approaches to study the soil cover of Kamchatka,” in Role of Soils in the Biosphere, No. 2: Geographical Diversity of Soils. Soil and Biota (Research Institute of Soil Science, Russian Academy of Sciences, Moscow, 2003), pp. 6–49.
M. S. Marechek, Candidate’s Dissertation in Biology (Moscow, 2007).
V. Yu. Neshataeva, Doctoral Dissertation in Biology (St. Petersburg, 2006).
Yu. M. Puzankov, V. A. Bobrov, and A. D. Duchkov, Radioactive Elements and Thermal Fluxes in the Earth’s Crust of Kamchatka Peninsula (Nauka, Moscow, 1977) [in Russian].
D. A. Rodionov, R. I. Kogan, V. A. Gorbunova, et al., Handbook on Mathematical Methods Applied in Geology (Nedra, Moscow, 1987) [in Russian]
I. A. Sokolov, Volcanism and Soil Formation (Nauka, Moscow, 1973) [in Russian].
A. P. Solovov, A. Ya. Arkhipov, V. A. Bugrov, et al., Handbook on the Geochemical Exploration of Mineral Deposits (Nedra, Moscow, 1990) [in Russian].
N. B. Felitsin, P. A. Vaganov, and V. Yu. Kir’yanov, “Distribution of rare and dispersed elements in volcanic ashes of Kamchatka according to the instrumental neutron activation analysis,” Vulkanol. Seismol., No. 2, 23–35 (1990).
A. A. Yaroshevskii, Problems of Modern Geochemistry (Novosibirsk State University, Novosibirsk, 2004) [in Russian].
G. P. Yarotskii, A. A. Aliskerov, Yu. A. Burmakov, and A. A. Orlov, Mineral Resources of Kamchatka Oblast (Vitus Bering Kamchatka State Technological University, Petropavlovsk-Kamchatskii, 2007) [in Russian].
S. Shoji, M. Nanzyo, and R. A. Dahlgren, Volcanic Ash Soils: Genesis, Properties, and Utilization. Developments in Soil Science 21 (Elsevier, Amsterdam, 1993).
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Original Russian Text © L.V. Zakharikhina, Yu.S. Litvinenko, 2016, published in Pochvovedenie, 2016, No. 1, pp. 19–28.
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Zakharikhina, L.V., Litvinenko, Y.S. Radiogeochemistry of Kamchatka soils. Eurasian Soil Sc. 49, 15–23 (2016). https://doi.org/10.1134/S1064229315090136
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DOI: https://doi.org/10.1134/S1064229315090136