Multiple talus flatirons, variations of scarp retreat rates and the evolution of slopes in Almazán Basin (semi-arid central spain)

Auteurs :
GUTIÉRREZ ELORZA, M.
SESÉ MARTÍNEZ, V.H.

Description :
The AA. have studied a group of talus flatirons, with 5 different stages of slope evolution, situated at the foot of structural platforms capped by Miocene limestones in the Almazán Basin, a southeastern extension of the Tertiary Duero Basin. They have measured their profiles and have fitted them to mathematical functions. By extrapolating these functions, they have obtained the intersection point with the scarp at every stage. Remains of charcoal found in the debris slopes have been dated by means of C 14. The correlations seem to confirm that talus flatirons in arid environments are good climatic indicators.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2001, vol. 38, n°. 1-2, p. 19-29, Collation : Illustration, Références bibliographiques : 51 ref.

Date :
2001

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier