Landslides in Valles Marineris (Mars): A possible role of basal lubrication by sub-surface ice

► First paper trying to describe the mechanics of formation of striations on the surface of the Valles Marineris landslides. ► It is shown that the presence of this striations strongly indicates a soft and lubricating base, likely sub-surface ice. ► Useful comparison to similar landslides on Earth.