P52C:
Present-Day Landscape Evolution on Mars II

Submit an Abstract to this Session



Session ID#: 32337

Session Description:
Long-lived robotic missions have documented many active surface processes on Mars, including slope, impact, aeolian, and polar processes. These data are now producing insights into landscape evolution over longer timescales. Examples include formation of complex gullied slopes, carbon-dioxide-driven erosion of south polar terrains (including “spiders”), dune field evolution and implications for erosion of layered sediments, steep polar scarps with seasonal avalanches, and new impact events causing dust avalanches. Of special interest due to the possible role of water are recurring slope lineae (RSL), with characteristic associated morphologies such as small gullies or channels, sandy fans, and slumps. There are also better constraints on the rates of other processes, such as ice sublimation and glacial flow in the middle latitudes and tectonic activity. Rovers and landers provide important in situ measurements supporting orbital monitoring. We invite submissions documenting active surface change or assessing current landscape evolution on longer timescales.
Primary Convener:  Alfred S McEwen, University of Arizona, Lunar and Planetary Laboratory, Tucson, United States
Conveners:  Ganna Portyankina, University of Colorado at Boulder, Boulder, United States and Colin M Dundas, USGS Astrogeology Science Center, Flagstaff, AZ, United States
Chairs:  Alfred S McEwen, University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, Ganna Portyankina, University of Colorado at Boulder, Boulder, United States and Colin M Dundas, U. S. Geological Survey, Flagstaff, AZ, United States
OSPA Liaison:  Alfred S McEwen, University of Arizona, Lunar and Planetary Laboratory, Tucson, United States

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
Index Terms:

5415 Erosion and weathering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5422 Ices [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5499 General or miscellaneous [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6225 Mars [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Modification and Mobility of Dunes and Ripples in Middle and High Southern Latitude Dune Fields (299869)
Maria E Banks, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Smithsonian Institution, National Air and Space Museum, Center for Earth and Planetary Studies, Washington, DC, DC, United States, Lori K Fenton, Carl Sagan Center, SETI Inst., Mountain View, United States, Matthew Chojnacki, University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States and Simone Silvestro, SETI Institute, mountain view, CA, United States
Are the different gully morphologies due to different formation processes on the Kaiser dune field on Mars? (257355)
Kelly Pasquon1, Julien Gargani1, Marion Nachon2, Susan J Conway3, Marion Massé4, Gwenael Jouannic5, Matthew R Balme6, François Costard1 and Mathieu Vincendon7, (1)GEOPS Géosciences Paris-Sud, Université Paris-Sud, CNRS, Université Paris-Saclay, Orsay, France, (2)UC Davis Earth and Planetary Sciences, University of California, Davis, CA, United States, (3)LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes, France, (4)Laboratoire de Planétologie et Géodynamique, Nantes, France, (5)Center for expertise and engineering on risks, urban and country planning, environment and mobility - Cerema, Laboratoire Régional de Nancy, TOMBLAINE, France, (6)The Open University, School of Physical Sciences, Milton Keynes, United Kingdom, (7)IAS, Institut d'astrophysique Spatiale, Université Paris-Sud, Université Paris-Saclay, Orsay, France
Snow Storms and Sand Avalanches sculpt Mars’ North Polar Erg (224959)
Serina Diniega, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Candice J Hansen, Planetary Science Institute Albuquerque, Albuquerque, NM, United States and Paul Ottinger Hayne, University of Colorado, Boulder, Astrophysical and Planetary Sciences Department, Boulder, United States
Ice exposures and landscape evolution in the Martian mid-latitudes (277612)
Colin M Dundas1, Ali M Bramson2, Lujendra Ojha3, James J Wray4, Michael T Mellon5, Shane Byrne6, Alfred S McEwen7, Nathaniel E Putzig8, Donna Viola6 and Sarah Sutton6, (1)USGS Astrogeology Science Center, Flagstaff, AZ, United States, (2)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (3)Johns Hopkins University, Baltimore, MD, United States, (4)Georgia Institute of Tech., Atlanta, GA, United States, (5)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (6)University of Arizona, Tucson, AZ, United States, (7)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (8)Planetary Science Institute, Lakewood, CO, United States

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