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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Aeolian processes on the terrestrial planets : Recent observations and future focus

Auteur(s) et Affiliation(s)

CRADDOCK, R.A.
Smithsonian Institution, Etats-Unis


Description :
This progress report presents an overview of the latest planetary geomorphic studies characterizing aeolian processes on extraterrestrial surfaces. The understanding of aeolian processes on other planetary surfaces comes largely from Earth analog studies, along with wind tunnel experiments and theoretical modeling. However, an important difference is that unlike terrestrial dunes most dunes on Venus and Mars are composed primarily of basaltic particles. Additional research is needed to understand how basaltic particles weather both physically and chemically so that it will be possible to apply traditional sedimentological concepts, such as sediment maturity, to understanding aeolian processes on Venus and Mars. Here, 3 areas where Earth analogs are extremely relevant are discussed, including studies of basaltic dune fields, laboratory analyses, and the formation of linear dunes.


Type de document :
Article de périodique

Source :
Progress in physical geography, issn : 0309-1333, 2012, vol. 36, n°. 1, p. 110-124, nombre de pages : 15, Références bibliographiques : 5 p.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, London, Sage Publications

Langue :
Anglais
Droits :
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