DISTRIBUTION OF HEAVY METALS AND METALOIDS IN SOIL CATENES OF MINING LANDSCAPES (CASE STUDIES OF ZAKAMENSK, RUSSIA, AND ERDENET, MONGOLIA)
Abstract
Soil-geochemical surveys of 2011–2013 resulted in the determination of bulk contents of 16 heavy metals and metalloids (HMMs) of 1 to 3 hazard categories in urban and background catenas of the towns of Zakamensk and Erdenet. Geochemical structure of mining centers background catenas is governed by the high litho-geochemical heterogeneity of parent rocks. The highest concentrations of Ba, Sb, Cd, Mo, Zn, Cu, Ni, Co within the Dzhida and Erdenet ore clusters correlate with the underdeveloped mountain soils of autonomous landscapes. Ore fields exploitation sharply increases the lateral contrast of HMMs and results in the accumulation of chalcophile elements Mo, Bi, W, Sb, Cu, As, Cd, Pb and Sn in Zakamensk superaqual positions while Cu, Mo, Sb and As accumulate in Erdenet trans-accumulative positions. Recent erosion processes destroy tailing dumps, thus supporting the formation of artificial natural-anthropogenic sorption-sedimentological lateral geochemical barriers. The increased content of sand in Zakamensk and the input of silt in Erdenet result in the accumulation of ore elements (Mo, W and Cu) at the barriers in subordinate landscapes.
About the Authors
N. E. Kosheleva
Lomonosov Moscow State University.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, Professor, D.Sc. in Geography.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, Professor, D.Sc. in Geography.
I. V. Timofeev
Lomonosov Moscow State University.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, Research Scientist, PhD in Geography.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, Research Scientist, PhD in Geography.
N. S. Kasimov
Lomonosov Moscow State University.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, President of the Faculty, Academician of the RAS, D.Sc. in Geography.
Russian Federation
Faculty of Geography, Department of Landscape Geochemistry and Soil Geography, President of the Faculty, Academician of the RAS, D.Sc. in Geography.
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Kosheleva N.E., Timofeev I.V., Kasimov N.S. DISTRIBUTION OF HEAVY METALS AND METALOIDS IN SOIL CATENES OF MINING LANDSCAPES (CASE STUDIES OF ZAKAMENSK, RUSSIA, AND ERDENET, MONGOLIA). Vestnik Moskovskogo universiteta. Seriya 5, Geografiya. 2019;(2):16-32. (In Russ.)
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