NDLI: Dynamique de l érosion dans les chaînes de montagnes : Influence de la sédimentation de piedmont. L'exemple des Pyrénées

Content Provider	Semantic Scholar
Author	Babault, Julien
Copyright Year	2004
Abstract	L'etude de la dynamique de l'erosion des chaines de montagnes ne prend en general pas en compte l'influence de la sedimentation de piedmont. Or le remplissage des bassins d'avant-pays est le plus souvent carracterise par des sequences de comblement, entrainant une elevation du niveau de base des rivieres qui drainent les chaines. L'objectif de ce travail est de montrer dans quelle mesure la dynamique du relief est perturbee par la sedimentation de piedmont. La demonstration s'appuie sur l'analyse de l'evolution de la morphologie des Pyrenees, dont les stades precoces sontpreserves par d'epais depots detritiques sur le versant sud, et qui est carracterisee par une peneplaination miocene dont les reliques aujourd'hui culminent a pres de 3000 m. L'evolution proposee est testee a travers une modelisation experimentale sur l'influence de la sedimentation de piedmont sur la dynamique d'un relief en surrection.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://tel.archives-ouvertes.fr/tel-00007478/document
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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