GRADUAL INPUT OF SAHARAN DUST IN THE SILT Y DEPOSITS OF THE EASTERN CAPE-VERDE ISLANDS

Authors
COUDEGAUSSEN G ROGNON P LECOUSTUMER M
Citation
G. Coudegaussen et al., GRADUAL INPUT OF SAHARAN DUST IN THE SILT Y DEPOSITS OF THE EASTERN CAPE-VERDE ISLANDS, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 319(11), 1994, pp. 1343-1349
Citations number
20
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
319
Issue
11
Year of publication
1994
Part
2
Pages
1343 - 1349
Database
ISI
SICI code
1251-8069(1994)319:11<1343:GIOSDI>2.0.ZU;2-8
Abstract
The silty deposits of the eastern Cape Verde islands bear a significan t proportion of Saharan dust. Some silts (group I) have kept the origi nal characters of dust. Other silts (group II) show mineralogical modi fications related to an incipient alteration and/or a pollution from t he local substratum. Lastly, the silts of group III are distinguished by the grain-size modifications and principally by the neoformation in the low flats. These results are compared with the available data con cerning the present dust, the Holocene alterations in Canary island an d deep ocenic drillings.