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Si precipitation du...
Si precipitation during weathering in different Icelandic Andosols
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- Clymans, Wim (author)
- Lund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science
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Lehtinen, T. (author)
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Gisladottir, G. (author)
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Lair, G. J. (author)
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Barao, L. (author)
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Ragnarsdottir, K. V (author)
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Struyf, E. (author)
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- Conley, Daniel (author)
- Lund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Geochemistry of the Earth's Surface GES-10. - : Elsevier BV. - 1878-5220. ; 10, s. 260-265
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Abstract
Subject headings
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- Basaltic weathering from volcanic islands plays a critical role in the climate feedback loop. Geochemical and climate models require information on the rate of secondary mineral formation. We provide direct evidence for precipitation of amorphous Si in organic rich and acidic Histic Andosols compared to preferential allophane formation in organic poor and less acidic Haplic Andosols. Similar results have been obtained from the pioneering work by Opfergelt et al(1) using Si isotope composition. Additionally, enhanced allophane precipitation in Haplic Andosols, independent of long-term soil property changes, highlight the potential role of land use and management on secondary mineral formation. (C) 2014 The Authors. Published by Elsevier B.V.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Keyword
- Silicon
- Allophane formation
- Land Management
- Weathering
- Andosols
Publication and Content Type
- kon (subject category)
- ref (subject category)
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