Szentes, G.2011-11-182011-11-182009Cadernos do Laboratorio Xeolóxico de Laxe, 2009, 34: 13-26. ISSN: 0213-44970213-4497http://hdl.handle.net/2183/8360engBasement complexOlder granite formationTounger granite formationPeneplainsInselbergWoolsacksBirnun Kudu Rock SheltersAncient rock paintingsGranite formations and granite cavities in northern Nigeriajournal articleopen access