Origin of a washboard moraine of the Des Moines Lobe inferred from sediment properties

• Published in: Geomorphology
• Main Authors: Ankerstjerne, Suzanne, Iverson, Neal R., Lagroix, France
• Other Authors: Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2015
• Subjects: Glacier; Moraine; Till; Fabric; Preconsolidation; [SDU]Sciences of the Universe [physics]; Moraine Ridge; DML; Ice Sheet
• Online Access: https://insu.hal.science/insu-03579364; https://doi.org/10.1016/j.geomorph.2015.07.019

International audience Geometric characteristics of the washboard moraines of the Des Moines Lobe (DML) of the Laurentide ice sheet agree with their proposed origin as crevasse-squeeze ridges, but study of their sediments is required to help further test this hypothesis. A 70-m-long, 3-5 m high sect...