Instability of a high alpine rock ridge : the lower Arête des Cosmiques, Mont Blanc massif, France

Auteur(s) et Affiliation(s)

RAVANEL, L.

EDYTEM, Univ. de Savoie, CNRS, Le Bourget du Lac, France

TIK Lab., Swiss Federal Inst. of Technology, Zurich, Suisse

DELINE, P.

EDYTEM, Univ. de Savoie, CNRS, Le Bourget du Lac, France

LAMBIEL, C.

IGD, Univ., Lausanne, Suisse

VINCENT, C.

LGGE, Univ. J. Fourier - CNRS, Saint Martin d'Hères, France

Description :
This paper examines over 15 years the instability of the lower Arête des Cosmiques on the French side of the Mont Blanc massif. Its vulnerability is due to the presence of a high-capacity refuge on its top. In 1998, a part of the refuge was left without support when a collapse of 600 m3 occurred immediately below it. Since this date, the whole ridge has been affected by around 15 relatively shallow rockfalls. Through a multidisciplinary approach, this article assesses the role of the cryospheric factors in the triggering of these rockfalls.

Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2013, vol. 95, n°. 1, p. 51-66, nombre de pages : 16, Références bibliographiques : 1 p.

Date :
2013

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi

Langue :
Anglais