Articles | Volume 3, issue 1
Earth Surf. Dynam., 3, 139–152, 2015
Earth Surf. Dynam., 3, 139–152, 2015
Research article
 | Highlight paper
16 Feb 2015
Research article  | Highlight paper | 16 Feb 2015

Ancient pre-glacial erosion surfaces preserved beneath the West Antarctic Ice Sheet

K. C. Rose et al.

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We use ice-penetrating-radar data to identify a laterally continuous, gently sloping topographic block, comprising two surfaces separated by a distinct break in slope, preserved beneath the Institute and Möller ice streams, West Antarctica. We interpret these features as extensive erosion surfaces, showing that ancient (pre-glacial) surfaces can be preserved at low elevations beneath ice sheets. Different erosion regimes (e.g. fluvial and marine) may have formed these surfaces.