Editorial Board

Editor-in-Chief: Petre Gastescu, Hyperion University of Bucharest (Romania)
Managing Editor: Petre Bretcan, Valahia University of Targoviste (Romania)
Volume 8(1) / 2014
ISSN: 1844-6477 (print version)
ISSN: 2284-5305 (electronic version)

 

 

  

 

NATURE AND DYNAMIC OF SEDIMENTS AT THE MOUTH OF KOMOÉ RIVER (IVORY COAST)

 

Laurent K. ADOPO1, Gheorghe ROMANESCU2, Alexis Y. N'GUESSAN1, Cristian STOLERIU2

1Cocody University of Abidjan, UFR des Sciences de la Terre et des Resources Minières, Ivory Coast
2Alexandru Ioan Cuza University of Iasi, Faculty of Geography and Geology, Department of Geography, Bd. Carol I 20A, 700505, Iasi, Romania, Email: romanescugheorghe@gmail.com

Abstract

Komoé River represents the most important freshwater resource of Ivory Coast. This study aims at identifying the alluvia material and its dynamic at the mouth. The agricultural activity within the upper basin has determined a decrease in liquid discharge and an increase in alluvia transport. Most of the water is used in agriculture. The alluvia material comprises mainly sands and it is included in the middle-coarse category. Mixed sediments are composed of muddy sands and sandy muds. Most quartz grains transported by the river are flattened and glassy (91.66%), while the rest are round and opaque (8.34%). Minerals are angular, subangular, rounded and subrounded. Among heavy minerals, it is worth mentioning as follows: quartz, mica, feldspar, pyroxene, tourmaline, amphibole, gamet, epidote etc. The high degree of alluvia deposit has reduced the depth of the lower river course and it has closed the estuary completely. In this case, the wetland was extended and the vegetation tends to cover the entire surface. Navigation has been made difficult by the alluvial and organic clogging processes.

Keywords: littoral dynamic, granulometry, heavy mineral, fluvial processes, sedimentation

  
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