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(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

Abstract

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

Source

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.

Language

Anglais

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
Refdoc record number (ud4) : 27865174 : Permanent link - XML version
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