Sediment sources of nebkhas in the Sahel zone of Burkina Faso

Auteur :
TENGBERG, A.

Description :
The aim of this paper is to identify possible sources for the material found in nebkhas in northern Burkina Faso. Grain-size distributions of nebkhas sediments and five other subenvironments were analyzed using univariate and multivariate methods. Quartz-grain surface textures were studied by Scanning Electron Microscopy (SEM). The SEM and grain-size analyses together indicate that the nebkhas have experienced considerable recent aeolian abrasion and sorting.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 1995, vol. 16, n°. 4, p. 259-275, Collation : Illustration, Références bibliographiques : 43 ref.

Date :
1995

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis