Mineralogical and Geochemical Features of a Peat Deposit in the Eutrophic Obskoye Fen under Anthropogenic Load (Western Siberia)

O. G. Savichev, M. A. Rudmin, A. K. Mazurov, N. G. Nalivaiko, V. I. Sergienko, I. P. Semiletov

Результат исследований: Материалы для журналаСтатьярецензирование

Аннотация

Abstract: The chemical composition and mineral inclusions in peats and the underlying soils of the eutrophic Obskoye fen (Western Siberia, Tomsk Region) are studied. The basic pattern of a change in the mineralogical and geochemical conditions at depth consists in domination of hydroxides on top of the peat deposit and sulfides at the bottom. The geochemical reduction barrier is formed at the bottom of the peat deposit. Its functioning is related to increased concentrations of U and Hg. The markedly pronounced influence exerted by sewage discharge is associated with an increase in the Na concentration in acid extracts from peats and additional accumulation of the mixture of suspended, colloidal, and dissolved forms of some metals in the boggy environment.

Язык оригиналаАнглийский
Страницы (с-по)320-322
Число страниц3
ЖурналDoklady Earth Sciences
Том492
Номер выпуска1
DOI
СостояниеОпубликовано - 1 мая 2020

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Earth and Planetary Sciences(all)

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