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Lecture Notes in Earth Sciences, 15: 465-480 Berlin: Springer References Abell, P.I. 1982. Paleoclimate at Lake Turkana, Kenya, from oxygen isotope ratios of gatropod shells. Nature 297: 321-323. Abel, P.I., McClory, J. 1987. Stable isotopes in the carbonates and kerogen from the Archaean stromatolites in Zimbabwe. Geol. Journ. vol. 22, Thematic Issue, 45-55. Adegoke, O.S. 1969. Eocene stratigraphy of Southern Nigeria. Coil. I'Eocene, III, M~m. Bur. R~c. G~ol. Min. 69: 23-48. Adegoke, O.S., Adeleye, D.R., Odebode, M.O., Petters, S.W., Ejeaba, D.M. 1980. Excursion to the Shagamu quarry (Paleocene-Eocene). Geological Guide to some Nigerian Cretaceous - Recent localities, Spec. Pub. 2, Nig. Min. Geosc. Soc. 1-26. Adeleye, D.R. 1976. The geology of the middle Niger Basin. I_nn C.A. Kogbe (ed.), Geology of Nigeria, pp. 283-287. Lagos: Elizabethan Publishing Co. Adighije, C. 1979. Gravity field of Benue Trough, Nigeria. Nature Phys. Sci. 282: 199-201. 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Micromammals and paleoenvironmental interpretation in southern Africa. Geoarchaeology 3: 45-52. Allen, J.R.L. 1965. Late Quaternary Niger Delta and adjacent areas: Sedimentary environments and lithofacies. AAPG Bull. 48: 547-600. Badejoko, T.A. 1976. Role of adiabatic crystallization and progressive melting in the origin of the younger granites-Sara-Fier complex. I__nn C.A. Kogbe (ed.), Geology of Nigeria, pp. 195-206. Lagos: Elizabethan Publ. Co. Bafor, B.E. 1982. The Zungeru metavolcanics of north-western Nigeria: Their geochemistry and tectonic setting. Nig. JOUro Min. Geol. 18: 42-52. Baker, B.H., Mitchell, J.G., Williams, L.A.J. 1988. Stratigraphic geochronology and volcano-tectonic evolution of the Kedong - Naivasha-Kinangop region, Gregory Rift Valley, Kenya. J. Geol. Soco London 145: 107-116. Barr, M.W.C. 1976. Crustal shortening in the Zambezi belt. Phil. Transo R. Soc. A 280: 555-567. Barr, M.W.C., Brown, M.A. 1987. Precambrian gabbro-anorthosite complexes, Tete Province, Mozambique. Geol. Journ. vol. 22, Thematic Issue, 139-159. Barton, J.M. Jr., Key, R.M. 1981. The tectonic development of the Limpopo mobile belt and the evolution of the Archaean cratons of southern Africa. I__nnA. Kroner (ed.), Precambrian plate tectonics, pp. 185- 212. Amsterdam: Elsevier. Barusseau, J.P., Giresse, P., Faure, H., Lezine, A.M., Masse, J.P. 1988. Marine Sedimentary environments on some parts of the tropical and equatorial Atlantic margins of Africa during the late Quaternary. Continental Shelf Res. 8: 1-21. Baudet, D. 1987. Implications of a palynological study in the Upper Precambrian from eastern Kasai and northwestern Shaba, Zaire. Geol. Journ. vol. 22, Thematic Issue, 121-137. Baumhaeur, R. 1987. Holocene limnic accumulations in the Great Erg of Bilma, N.E. Niger. 14th Colloquium of African Geology, Technische Universit~t Berlin, 18-22 August 1987 (Poster session). Battail, B., Beltan, L., Dutuit, J.-M. 1987. Africa and Madagascar during Permo-Triassic time: The evidence of vertebrate faunas. I__nnG.D. McKenzie (ed.), Gondwana Six: Stratigraphy, sedimentology, and paleontology, pp. 147-155. Geophysical Monograph 41. Washington, D.C.: American Geophysical Union. 688 Behrensmeyer, A.K. 1970. Preliminary geological interpretation of a new hominid site in the Lake Rudolf basin. Nature 226(5242): 225-226. Behrensmeyer, A.K., Laporte, L.F. 1981. Footprints of a Pleistocene hominid in northern Kenya. Nature 289(5794): 167-169. Bell, K., Dodson, M.H. 1981. The geochronology of the Tanzanian shield. J. Geol. Chicago 89: 109-128. Bellini, E., Massa, D. 1980. A stratigraphic contribution to the Palaeozoic of the southern basins of Libya. I__nnM.J. Salem, M.T. Brusrewil (eds.), The geology of Libya, pp. 3-56. Benkhelil, J. 1989. The origin and evolution of the Cretaceous Benue Trough (Nigeria). J. Aft. Earth Sci. 8: 251-282. Bensaid, M., Kutina, J., Mahmood, A., Saadi, M. 1985. Structural evolution of Morocco and new ideas on basement controls of mineralisation. Global Tectonics and Metallogeny 3: 59-69. Beraki, W.H., Bonavia, F.F., Getachew, T., Schmerold, R., Tarekegn, T. 1989. The Adola fold and thrust belt, Southern Ethiopia: a re- examination with implications for Pan-African evolution. Geol. Mag. 126: 647-657. Berhe, S.M. 1990. Ophiolites in northeast and East Africa: implications for Proterozoic crustal growth. J. geol Soc. London. 147: 41-57. Berry, W.B.N., Wilde, P. 1978. Progressive ventilation of the oceans - an explanation for the distribution of the Lower Paleozoic black shales. Am. Journ. Sci. 178: 257-275. Bertrand, J.-M., Davison, I. 1981. Pan-African granitoid emplacement in the Adrar des Iforas mobile belt (Mali): A Rb/Sr isotope study. Precambr. Res. 14: 333-361. Bertrand, J.M.L., Boissonnas, J., Caby, R., Gravelle, M., Lelubre, M. 1966. Existence d'une discordance dans l'ant~cambrien du "foss~ pharusien" de l'Ahaggar occidental (Sahara central). Acad. Sci. Paris C.R. (D), 262: 2197-2200. Bertrand, J.M.L., Lasserre, M. 1976. Pan-African and pre-Pan-African history of the Hoggar (Algerian Sahara) in the light of new geochronological data from the Aleksod area. Precambr. Res. 3: 343- 362. Bertrand-Sarfati, J.
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