What can we learn from ice collected in high mountain rockfall scars? Three examples from the Mont Blanc massif (France)

• Published in: Earth Surface Processes and Landforms
• Main Authors: Magnin, Florence, Ravanel, Ludovic, Guillet, Grégoire, Montagnat, Maurine, Preunkert, Susanne, Duvillard, P.A, Deline, Philip, Pallandre, François
• Other Authors: Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS), Institut de gestion des entreprises -USJ (IGE), Université Saint-Joseph de Beyrouth (USJ), Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ), Ecole nationale de ski et d'alpinisme
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2019
• Subjects: [SDE.ES]Environmental Sciences/Environment and Society; [SDE]Environmental Sciences; [SDE.MCG]Environmental Sciences/Global Changes; Mont Blanc; New Zealand; The Trident; Trident; Ice; permafrost
• Online Access: https://hal.science/hal-02440776; https://hal.science/hal-02440776/document; https://doi.org/10.1002/esp.3992

International audience The study of the ice (cryostructures, cryostratigraphy, types and age) that partly fills the fractures in rockwall permafrost is necessary to better understand the increasing frequency/volume of rockfalls in the high alpine rockwalls. Typically inaccessible, this ice is visibl...