Skip to main content
Article thumbnail
Location of Repository

Ice-driven creep on Martian debris slopes

By J. Taylor Perron, William E. Dietrich, Alan D. Howard, James A. Mckean and Jarg R. Pettinga

Abstract

[1] Accumulations of rocky debris at the base of bedrock escarpments on Mars have mean inclinations of 20°, well below the angle of repose ( 35°). These inclinations decrease with increasing latitude, suggesting a climatic influence. We present evidence that these low inclinations are the result of gravitational creep driven by repeated deposition and sublimation of ground ice. We estimate the rates of bedrock erosion and ice-driven creep on Mars and use a simple model to show that the probable time scale for debris slope development is between 20 Myr and 2 Gyr. Our results suggest that water ice has shaped Martian landscapes throughout the late Amazonian period. INDEX TERMS

Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.173.25
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www.fs.fed.us/rm/boise/... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.