NDLI: Hydrogeological studies on the Tarkwa gold mining district, Ghana

Content Provider	Springer Nature Link
Author	Kuma, Jerry S.
Copyright Year	2006
Abstract	The physical hydrogeology of the Tarkwa area has been evaluated with a view to improving the understanding of its groundwater characteristics. It has been inferred that aquifers in the Tarkwa area possess dual and variable porosity and heterogeneous permeability with predominantly limited storage properties. Both soil infiltration and pumping tests have shown that the Banket Series has the best hydraulic features, but the Banket rocks are host rocks for gold. The effect of mining on the groundwater regime is discussed, comparing groundwater recharge estimates obtained using the water balance method (299±72 mm year−1) and the stream hydrograph method (192±30 mm year−1).Le contexte hydrogéologique du district minier de Tarkwa a été étudié avec l’objectif d’améliorer la connaissance des systèmes aquifères. Il a pu être montré que les aquifères du district de Tarkwa présentent des porosités et perméabilités complexes et de forte variabilité, avec de faibles performances quant aux fonctions capacitives. A la fois les essais d’infiltration et les essais de pompage ont montré que la série de Banket présente les meilleures caractéristiques hydrauliques, mais les roches de cette série constituent un minerai aurifère. Les effets de l’exploitation minière sur le fonctionnement de l’aquifère sont discutés, la recharge de l’aquifère ayant été analysée, comparant la méthode des bilans et la méthode hydrographique.
Starting Page	89
Ending Page	99
Page Count	11
File Format	PDF
ISSN	14359529
Journal	Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur
Volume Number	66
Issue Number	1
e-ISSN	14359537
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-08-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogéologie Recharge d’un aquifère Mine d’or Ghana Nature Conservation Geoecology/Natural Processes Structural Foundations, Hydraulic Engineering Applied Geosciences
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology

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