Article du Bulletin
Social particles reworking evidences by AMS 14 C dating of charcoal.
Carcaillet Christopher · 2001 · C. R. Acad. Sci. Paris, Sciences de la Terre et des planètes, 332: 21–28.
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Résumé
Soil charcoal dating is a time proxy for soil pedogenesis. I test the stratification hypothesis by AMS 14 C dating of charcoal fragments from soil profiles between 1 700 and 1 900 m with respect to altitude within the Alps. The charcoal fragments are around 1 mm in size. There is no age/depth relationship for charcoal particles of the size millimetres. The results are discussed in light of the role of soil fauna, up-rooting and colluvial processes. Although biotic pedoturbation is poorly described in mountain and sub-alpine elevation, I hypothesise that this process is very active and plays a major role on the soil functioning.