HECKMANN, M. (2023): Geological map of the Niger Basin & Expected aquifer productivity map. - Technical report No 9 of the project "Appui à la Gestion des Eaux Souterraines dans le Bassin du Niger (AGES)", prepared by Niger Basin Authority (ABN), Niamey & Federal Institute for Geosciences and Natural Resources (BGR), Berlin: 53 p., 23 fig., 6 tab., 1 ann.; Hanover. (PDF, 20 MB)
Date of issue: May 1, 2023