Volcaniclastic aeolian deposits at Sunset Crater, Arizona : terrestrial analogs for Martian dune forms

Auteur(s) et Affiliation(s)



Description :
Sunset Crater in north-central Arizona (USA) is a 900-year-old scoria-cone volcano. Wind action has redistributed its widespread tephra deposit into a variety of aeolian dune forms that serve as a terrestrial analog for similar landforms and aeolian processes on Mars. Fieldwork was conducted to collect essential geomorphological and sedimentological data, and to establish a baseline for the type and morphometry of dunes, physical properties, interactions with topography, and saltation pathways. The analyses focused primarily on coppice dunes, falling dunes, wind ripples, and sand streaks.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 10, p. 1090-1105, nombre de pages : 16, Références bibliographiques : 2 p.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley