SEQUENCE STRATIGRAPHY IN A DESERT ENVIRON MENT - EXAMPLE FROM THE AKCHAR ERG IN WESTERN MAURITANIA (WEST-AFRICA)

Authors
DEYNOUX M KOCUREK G BENAN CAA CRABAUGH M HAVHOLM K PION JC
Citation
M. Deynoux et al., SEQUENCE STRATIGRAPHY IN A DESERT ENVIRON MENT - EXAMPLE FROM THE AKCHAR ERG IN WESTERN MAURITANIA (WEST-AFRICA), Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(9), 1993, pp. 1199-1205
Citations number
21
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
317
Issue
9
Year of publication
1993
Pages
1199 - 1205
Database
ISI
SICI code
0764-4450(1993)317:9<1199:SSIADE>2.0.ZU;2-2
Abstract
The main deposit of the Akchar Erg occurred during lowstand and/or pos t-glacial eustatic rise. The ''supersurface'' that terminates this agg radational phase corresponds to a long humid period when sea level rea ched its maximum. Then, two successive and poorly developed eolian uni ts cannibalized the pre-existing dunes in a globally negative continen tal sediment budget, with the Saharan sand bypassing to the sea during sea level highstand.