Were valley networks the drainage pathways of an ancient ice sheet on early Mars?
Anna Grau Galofre, CNRS UMR 6112, Nantes Université, Le Mans Université et l’Université d’Angers, Laboratoire de Planétologie et Géosciences, Nantes, France; Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and Mark Jellinek, Univ British Columbia, Vancouver, BC, Canada
