Forschungsbericht 93/94: FB Geowissenschaften
Jos/Nigeria, 1993. - : I. Postdiagenetic ferruginization of sedimentary rocks (sandstones, oolitic ironstones, kaolins, and bauxites).-Including a comparative study of the reddening of red beds. II. Postdiagenetic ferruginization of Phanerozoic (oolitic) ironstones: A contribution to their geneses.