Cosmogenic isotope analyses applied to river longitudinal profile evolution: problems and interpretations

Special Issue: Geomorphic processes/landscape evolution

Auteur(s) et Affiliation(s)



Description :
This paper presents an effort to link a field-based study with surface exposure dating techniques to understand river longitudinal profile evolution. The study was aimed at improving the understanding of the rates and processes governing bedrock channel incision. Samples to be analysed for cosmogenic isotopes were collected along a river profile and both radionuclide and stable nuclide concentrations were measured in the rocks. Specifically the nuclides 10Be, 26Al,36Cl,21Ne and 3He allow direct quantification of exposure ages and erosion rates and permit quantitative assessment of the processes operating in the studied landscape.


Type de document :
Congrès

Source :
Symposium British Geomorphological Research Group (BGRG), Glasgow, Royaume-Uni, 1996-01-04, Earth surface processes and landforms, issn : 0197-9337, 1997, vol. 22, n°. 3, p. 195-209, Collation : Illustration, Références bibliographiques : 40 ref.

Date :
1997

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley