Geophysical and hydrogeological study of the abandoned mining site of Kettara (Marrakech, Morocco): contribution to the rehabilitation project - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Hydrological Sciences Journal Année : 2012

Geophysical and hydrogeological study of the abandoned mining site of Kettara (Marrakech, Morocco): contribution to the rehabilitation project

Meriem Lghoul
  • Fonction : Auteur
Azzouz Kchikach
  • Fonction : Auteur
Rachid Hakkou
  • Fonction : Auteur
  • PersonId : 774904
  • IdRef : 183937937
Tereza Teixido
  • Fonction : Auteur
Jose Antonio Pena
  • Fonction : Auteur
Luis Enrique
  • Fonction : Auteur
Mohamed Jaffal
  • Fonction : Auteur
Lahoucine Hanich
  • Fonction : Auteur

Résumé

The sulphurated mine waste of the abandoned Kettara pyrrhotite mine, located approximately 30 km north-northwest of Marrakech, Morocco, has been deposited on a fractured schistous substratum. Over an area of about 16 ha, this mine waste threatens the local ecosystem with pollution, particularly due to the infiltration of acid mine drainage (AMD) via surface waters towards the groundwater. As part of the rehabilitation project at the Kettara mine, it is proposed to minimize the effect of AMD by neutralization using fine sterile carbonate-rich deposits that are by-products of phosphate extraction in the neighbouring Youssoufia mine. These by-products are used both as amendement for the acidic mine waste and as a capillary barrier to allow evapotranspiration. On the one hand, our study has allowed a better understanding of the structure of the tailings pond and of the substratum, and on the other hand, it has made it possible to characterize the impact of the mine waste on groundwater quality. The results of this study will contribute to the success of the site rehabilitation project.

Dates et versions

hal-01195765 , version 1 (08-09-2015)

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Citer

Meriem Lghoul, Azzouz Kchikach, Rachid Hakkou, Lahcen Zouhri, Roger Guerin, et al.. Geophysical and hydrogeological study of the abandoned mining site of Kettara (Marrakech, Morocco): contribution to the rehabilitation project. Hydrological Sciences Journal, 2012, 57 (2), pp.370-381. ⟨10.1080/02626667.2011.637495⟩. ⟨hal-01195765⟩
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