(Article of periodic en Anglais - 2013)

Document title

Shifting sands on Mars : insights from tropical intra-crater dunes

Authors(s) and Affiliation(s)

GEISSLER P.E. (1) ; STANTZOS N.W. (2) ; BRIDGES N.T. (3) ; BOURKE M.C. (4) ; SILVESTRO S. (5) ; FENTON L.K. (5 6) ;
(1) US Geological Survey, Arizona, Flagstaff, ETATS-UNIS
(2) Northern Arizona Univ., Flagstaff, ETATS-UNIS
(3) Applied Physics Lab., MD, Laurel, ETATS-UNIS
(4) Planetary Science Inst., Tucson, ETATS-UNIS
(5) SETI Inst., Carl Sagan Center, CA, Mountain View, ETATS-UNIS
(6) NASA Ames Research Center, California, Moffett Field, ETATS-UNIS


Evidence for sand motion is found in repeated observations of sand dunes at 3 sites in the Martian tropics by the High Resolution Imaging Science Experiment on Mars Reconnaissance Orbiter. An eroding outcrop of layered sediments is identified as a possible source of the sand in Pasteur crater. Ancient layered sediments in Becquerel crater are actively being carved into flutes and yardangs by the blowing sands. Dunes in an un-named crater in Meridiani near the Mars Exploration Rover Opportunity landing site advanced as much as 50 cm over an interval of one Martian year


Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no4 [pp. 407-412]

Bibliographic references : 21 ref.

Collation : 10 fig.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3331

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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