Soil particles reworking evidences by AMS 14C dating of charcoal
Identifieur interne : 000281 ( Main/Exploration ); précédent : 000280; suivant : 000282Soil particles reworking evidences by AMS 14C dating of charcoal
Auteurs : Christopher Carcaillet [Suède]Source :
- Comptes Rendus de l'Academie des Sciences Series IIA Earth and Planetary Science [ 1251-8050 ] ; 2000.
Descripteurs français
- Wicri :
- geographic : France.
English descriptors
- KwdEn :
- 14C, Alps, France, bioturbation, charcoal, soil, soil fauna, up-rooting.
Abstract
Soil charcoal dating is a time proxy for soil pedogenesis. I test the stratification hypothesis by AMS 14C dating of charcoal fragments from soil profiles between 1700 and 1900 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.
Url:
DOI: 10.1016/S1251-8050(00)01485-3
Affiliations:
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