Multi-element,multi-medium regional geochemistry in the European Arctic: element concentration,variation and correlation |
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| Institution: | 1. International Network for Environment and Health (INEH), School of Geography and Archaeology & Ryan Institute, National University of Ireland, Galway, Ireland;2. Institute of Geology and Mineral Exploration, Athens, Hellas;3. Geological Survey of Norway, P.O. Box 6315, Torgarden, N-7491 Trondheim, Norway;4. ARAID Researcher, Pyrenean Institute of Ecology-National Spanish Research Council, IPE-CSIC, Av. Nuestra Señora de la Victoria 16, 22700 Jaca, (Huesca), Spain;5. University of Bremen, UFT, Department of General and Theoretical Ecology, Leobener Str. 6, D - 28359 Bremen, Germany;1. School of Geography, Archaeology and Palaeoecology, Queen''s University Belfast, BT7 1NN, UK;2. Dept. of Math. Anal. & Appl. of Math., Palacky University Olomouc, 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic;3. Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada;4. Geological Survey of Norway, PO Box 6315, Sluppen, N-7491 Trondheim, Norway;5. Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia;6. Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia;7. Institute of Statistics & Mathematical Methods in Economics, Vienna University of Technology, Wiedner Hauptstr. 8-10, 1040 Vienna, Austria;8. Helmholtz Center Dresden Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Freiberg, Germany |
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| Abstract: | A multi-medium, multi element regional geochemical survey has been carried out in an 188,000 km2 area in the Central Barents Region, Finland, Norway and Russia. Four different sample materials (terrestrial moss, O-, B- and C-horizons of podzol) were collected at the same sites throughout the area at a density of 1 site/300 km2. While moss predominantly reflects the atmospheric input of elements, the O-horizon reflects the complex interplay between atmosphere, biosphere and lithosphere. The B-horizon can be used to study the influence of soil-forming processes, while the C-horizon represents the composition of the lithosphere at each sample site and thus the geogenic background. The concentration, variation and correlation between 24 elements (Ag, Al, As, Ba, Bi, Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Na, Ni, P, Pb, S, Si, Sr, Th, V, Zn) analysed with similar techniques in all 4 materials are compared. Some rare trace elements (Ag, As, Bi, Cd, Pb) appear to be considerably more enriched in the O-horizon of podzols than the main pollutants in the survey area (Ni, Cu, Co from the Russian nickel industry in Monchegorsk and Nikel-Zapoljarnij). Biological processes play an underestimated role in determining regional geochemistry at the earth's surface. |
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