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Geomorphic and cosmogenic nuclide constraints on escarpment evolution in an intraplate setting, Darling Escarpment, Western Australia

Auteur(s) et Affiliation(s)

JAKICA, S.
School of Earth Sciences, Univ., Melbourne, Australie
QUIGLEY, M.C.
Dep. of Geological Sciences, Univ. Canterbury, Christchurch, Nouvelle-Zelande
SANDIFORD, M.
School of Earth Sciences, Univ., Melbourne, Australie
CLARK, D.
Geospatial and Earth Monitoring Division, Geoscience Australia, Canberra, Australie
FIFIELD, L.K.
Research School of Physics and Engineering, Australian National Univ., Canberra, Australie
School of Earth Sciences, Univ., Melbourne, Australie


Description :
It is unclear whether the Darling scarp is a rapidly evolving landform responding to recent tectonic and/or climatic forcing or a more slowly evolving landform. In order to quantify late Quaternary rates of erosion and scarp relief processes, the AA. obtained measurements of the cosmic-ray produced nuclide beryllium-10 (10Be) from outcropping bedrock surfaces along the scarp summit and face, in valley floors, and at stream knickpoints. Results and discussion. Cosmogenic 10Be analysis provides a useful tool for interpreting the palaeoseismic history of intraplate near-fault landforms over 100 kyr to 10 million years.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2011, vol. 36, n°. 4, p. 449-459, nombre de pages : 11, Références bibliographiques : 1,5 p.

Date :
2011

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

Langue :
Anglais
Droits :
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