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Location: 100 km NE from Dakar, Senegal
Opposite École Actuelle Bilingue, 77 Corniche Ouest RoadDakarSenegal
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The extensive Senegal-Mauritanian Basin covers most of Senegal and is composed of Mid-Jurassic to Recent, poorly cemented marine sands, marls, limestones and shales overlain by continental lacustrine and marine sediments. The GCO project is within the belt of coastal dunes that lie along the current shoreline. The dunes, recent in age, are mobile or semi-fixed, pale yellow in colour and overlie older Late Quaternary white marine sands. The dunes range between 5m and 35m in height and the mineralised zones, which are essentially flat-lying, average around 15m in thickness. The GCO deposit comprises a linear series of Aeolian sand dunes containing an HM assemblage concentrated by wind action. The Aeolian or mobile dunes overlie a substratum of former beach sands representing a recessive littoral environment. These sands also contain a lesser HM concentration. The natural water table generally occurs close to the interface between the mobile dune and littoral sand together with occasional peaty materials preferentially located at the dune-littoral sand interface.The deposits include: Mboro, Lompoul, Diogo, Fass Boye, Yodi, Mboro Hotel and Noto. The deposits extend over a length of about 70km. There is potential for additional deposits beyond the limits of present drilling, both to the south–west and north–east for a total strike length drilled of 75km.DimensionsThe resource extends for 75km north–east and averages 2km wide. The average depth of mineralisation is 15m.
