Mechanisms of Accumulation of Chemical Elements in a Peat Deposit in the Eastern Part of Vasyugan Swamp (West Siberia); Doklady Earth Sciences; Vol. 486, iss. 1
| Parent link: | Doklady Earth Sciences Vol. 486, iss. 1.— 2019.— [P. 568-570] |
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| Corporate Authors: | , |
| מחברים אחרים: | , , , , , |
| סיכום: | Title screen The results of mineralogical-geochemical studies of the oligotrophic pine-fruticulose-sphagnum segment of Vasyugan Swamp (West Siberia) in the winter of 2017 are presented. A mathematical model is developed for the depth distribution of chemical elements in water and acid extracts of peats, organo-mineral sediments, and inorganic soil. It is shown that two complex geochemical barriers related to the changes in filtration properties of soils and contributing to the formation and/or accumulation of Fe compounds and other chemical elements function in the peat deposit. The first (oxidizing, reduction, sulfide, and adsorption hydroxide) barrier is found approximately at a depth of 0.40-1.25 m; the second (alkaline carbonate and hydrolytic, adsorption hydroxide, clayey, and carbonate) barrier lies in the lower layer of the peat deposit (a depth of 2.25-2.50 m). The result obtained is important for understanding the production-destruction methane cycle. Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2019
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1134/S1028334X19050258 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660742 |