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A new model of topographic effects on the distribution of loess

Auteurs :
MASON, J.A.
NATER, E.A.
ZANNER, C.W.
BELL, J.C.

Description :
A model of topographic influence on the regional transport and accumulation of loess in sparsely vegetated landscapes is proposed, based on the critical role played by saltating eolian sand in the entrainment and long-distance transport of finer-grained suspended dust. Regional and local patterns of distribution of late Wisconsinan loess in parts of the Upper Mississippi River basin are closely related to the distribution of topographic obstacles to sand transport. Topographic obstacles and dense vegetation may have similar effects on loess distribution under different environmental conditions.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1999, vol. 28, n°. 3-4, p. 223-236, Collation : Illustration, Références bibliographiques : 63 ref.

Date :
1999

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais
Droits :
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