Changes in Fe Speciation during Early Soil Formation in an Alpine Glacier Forefield
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Date
2007
Publication Type
Report
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yes
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Abstract
In this project, we investigate the transformation of Fe during granite weathering and early soil development in the forefield of a retreating glacier (Damma glacier, Central Aare massive, Switzerland). This work is integrated in a multidisciplinary project on the links between climate change, rock weathering, soil formation, and ecosystem evolution. Fe is an essential nutrient and its release from weathering rock is a key factor in initial soil development. To study Fe transformation during early weathering and soil formation, we combine two comparatively new geochemical tools, namely stable Fe isotope studies and X-ray-absorption spectroscopy (XAS). While stable Fe isotope studies provide insight into different physical and chemical weathering mechanisms, XAS allows following the changes in Fe speciation and redox state, as shown in our earlier feasibility study.
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published
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Book title
Volume
2007
Pages / Article No.
1275 - 1276
Publisher
HASYLAB
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Date collected
Date created
Subject
Organisational unit
03541 - Kretzschmar, Ruben / Kretzschmar, Ruben
03621 - Peter, Markus (ehemalig) / Peter, Markus( former)
03722 - Bourdon, Bernard (ehemalig)
Notes
CD-ROM.