Physical modelling of fault scarp degradation under freeze-thaw cycles

Auteurs :
FONT, M.
LAGARDE, J.-L.
AMORESE, D.
COUTARD, J.-P.
DUBOIS, A.
GUILLEMET, G.
OZOUF, J.-C.
VEDIE, E.

Description :
Physical modelling has been developed in order to simulate the effects of periglacial erosion processes on the degradation of slopes and scarps. Data from 41 experimental freeze-thaw cycles are presented. They attest to the efficiency of periglacial processes that control both erosion and changes in scarp morphology. The experimental results are consistent with field data acquired along the La Hague fault scarp (Normandy, France). These results show that moist periglacial erosion processes could lead to an underestimation of Plio-Quaternary deformation in the mid-latitudes.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2006, vol. 31, n°. 14, p. 1731-1745, nombre de pages : 15, Collation : Illustration, Références bibliographiques : 28 ref.

Date :
2006

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