Sedimentology and prediction of the sand dynamics of the buyo dam lake using the Hjulström model
1 Sciences and Technologies Department, Earth Sciences and Mining Resources Training and Research Unit, University Félix Houphouët Boigny, Abidjan, Ivory Coast.
2 Department of Mines and Reservoirs, Geological and Mining Sciences Training and Research Unit, University of Man, Man, Ivory Coast.
Review Article
World Journal of Advanced Research and Reviews, 2024, 23(02), 1515–1531
Publication history:
Received on 05 July 2024; revised on 13 August 2024; accepted on 16 August 2024
Abstract:
The objective of this study aims to characterize the sedimentation and mode of transport of sandy sediments in Lake Buyo. The granulometric, morphoscopic and mineralogical analyzes of the surface sediments from the bottom of the lake collected in March 2021 and the use of the Hjulström model, made it possible to determine the sedimentological characteristics and predict the sedimentary processes in the lake. The sedimentological study makes it possible to identify four lithological facies: sands, muds, gravels and mixed sediments. Sands and gravels are the most abundant, with a predominance of sub-angular forms (75.37%). The sands are mainly very poorly classified and transported by saltation (67%). The mineralogical procession consists of garnet, pyroxene, quartz, muscovite, feldspar, limonite and biotite. During the hydrological seasons, the waters of the lake are very calm in the vicinity of the flood spillway and favor the settling of most of the sandy particles present in the water column. The water intake area is where there is a high chance of remobilization or erosion of sand (coarse to fine).
Keywords:
Sedimentology; Morphoscopy; Mode of transport; Hjulström model; Lake Buyo
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