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Orogeny and Reactivation to the West and Southeast of the West African Craton

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The South Atlantic

Abstract

The term “Pan-African thermotectonic event,” or “orogeny,” has been applied by Kennedy (1964, 1965) to a shield-wide series of metamorphic belts with ages in the range 450–700 m. y., which wrap around and enclose older undisturbed cratonic Precambrian complexes (Fig. 1). This reticulate group of belts has been recognized principally by mineral radiometric ages, which for most part give little information on the earlier history of the belts. In some cases they include folded and metamorphosed equivalents to cratonic sediments and crystalline basement rocks, but in others they consist of metasedimentary, gneissic, and granitic rocks of largely unknown age.

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References

  • Aicard, P., 1957, Le Précambrian du Togo et du Nord-Ouest du Dahomey: Bull. Dir. Féd. Mines Géol. A. O. F., no. 23, 226 p.

    Google Scholar 

  • Allen, P. M., 1968, The stratigraphy of a geosynclinal succession in western Sierra Leone, West Africa: Geol. Mag., v. 105, p. 62–73.

    Article  Google Scholar 

  • Allen, P. M., 1969, The geology of part of an orogenic belt in western Sierra Leone, West Africa: Geol. Rundschau, v. 58, p. 588–620.

    Article  Google Scholar 

  • Allen, P. M., Snelling, N. J., and Rex, D. C., 1967, Age determinations from Sierra Leone: M. I. T. Ann. Progress Rept., 1381-15, USAEC, p. 17-22.

    Google Scholar 

  • Andrews-Jones, D. A., 1966, Geology and mineral resources of the northern Kambui Schist Belt and adjacent granulites: Bull. Sierra Leone Geol. Surv., no. 6, 100 p.

    Google Scholar 

  • Andrews-Jones, D. A., 1968, Petrogeneisis and geochemistry of the rocks of the Kenema district, Sierra Leone: Ph.D. thesis, The University of Leeds, England.

    Google Scholar 

  • Barrère, J., 1967, Le groupe précambrien de l’Amsaga entre Atar et Akjoujt (Mauritanie). Étude d’un métamorphisme profond et de ses relations avec migmatisation: Mém. Bur. Rech. Géol. Min., no. 42, 237 p.

    Google Scholar 

  • Barrère, J., 1970, Aperçu sur le métamorphisme et la migmatisation dans le Précambrien de l’Amsaga (Mauritanie sud-occidentale): Bull. Soc. Géol. France, v. 11, no. 7, p. 150–159.

    Google Scholar 

  • Bassot, J.-P., 1966, Étude géologique du Sénégal oriental et de ses confins guinéo-maliens: Mém. Bur. Rech. Géol. Min., no. 40, 322 p.

    Google Scholar 

  • Bassot, J.-P., 1970, Aperçu sur les formations précambriennes et paléozoïques du Sénégal oriental: Bull. Soc. Géol. France, v. 11, no. 7, p. 160–169.

    Google Scholar 

  • Bassot, J.-P., Bonhomme, M., Roques, M., and Vachette, M., 1963, Mesures d’âges absolus sur les séries précambriennes et paléozoïques du Sénégal oriental: Bull. Soc. Géol. France, v. 5, p. 401–405.

    Google Scholar 

  • Bassot, J.-P. and Delpy, J., 1960, Sur l’âge cambro-ordovicien de la série d’Akjoujt (Mauritanie): Compt. Rend. Acad. Sci., v. 250, p. 3206–3208.

    Google Scholar 

  • Behrendt, J. C. and Wotorson, C. S., 1970, Aeromagnetic and gravity investigations of the coastal area and continental shelf of Liberia, West Africa, and their relation to continental drift: Bull. Geol. Soc. Am., v. 81, p. 3563–3574.

    Article  Google Scholar 

  • Bense, C., 1959, Sur l’identité des formations sédimentaires de la region de Kiffa et du Falémien de Sélibabi (Mauritanie): Bull. Soc. Géol. France, v. 1, p. 183–186.

    Google Scholar 

  • Bense, C., 1964, Les formations sédimentaires de la Mauritanie méridionale et du Mali nord-occidentale (Afrique de l’Ouest): Mém. Bur. Rech. Géol. Min., no. 26, 270 p.

    Google Scholar 

  • Beuf, S., Biju-Duval, B., Stevaux, J., and Kublicki, G., 1966, Ampleur des glaciations “siluriennes” au Sahara: leurs influences et leurs conséquences sur la sedimentation: Rey. Inst. Fr. Pétr. Ann. Comb. Liq., v. 21, p. 363–381.

    Google Scholar 

  • Bird, J. M. and Dewey, J. F., 1970, Lithosphere plate: continental margin tectonics and the evolution of the Appalachian orogen: Bull. Geol. Soc. Am., v. 81, p. 1031–1060.

    Article  Google Scholar 

  • Black, R., 1967, Sur l’ordonnance des chaînes métamorphiques en Afrique Occidentale: Chronique Mines et Rech. Minière., no. 364, 225–238.

    Google Scholar 

  • Blanchot, A., 1955, Le Précambrien de Mauritanie occidentale (esquisse geologique): Bull. Dir. Féd. Mines Géol. A. O. F., no. 17, 308 p.

    Google Scholar 

  • Blot, C., Crenn, Y., and Rechenmann, R., 1962, Eléments apportés par la gravimétrie à la connaissance de la tectonique profonde du Sénégal: Compt. Rend. Acad. Sci., v. 254, p. 1131–1133.

    Google Scholar 

  • Bonhomme, M., 1962, Contribution à l’étude géochronologique de la plate-forme de l’Ouest africain: Ann. Fac. Sci. Univ. Clermont-Ferrand, no. 5, fasc. 5, 62 p.

    Google Scholar 

  • Borocco, J. and Nyssen, R., 1959, Nouvelles observation sur les “Grès inférieurs” cambroordovicien du Tassili interne (Nord-Hoggar): Bull. Soc. Géol. France, v. 1, p. 197–206.

    Google Scholar 

  • Bozhko, N. A., 1967, The stratigraphy and tectonics of the Voltaian basin, and the Akwapim-Toga (Atacorian) fold belt: NEDRA, v. 17, p. 20–26.

    Google Scholar 

  • Bozhko, N. A., 1969a, Concerning the existence of a Riphean geosynclinal area in West Africa: Izvestija Vysshih Uchebnyh Zavedenij Geologija i Razvedka, no. 5, p. 21–26.

    Google Scholar 

  • Bozhko, N. A., 1969b, Stratigraphy and tectonics of the Voltaian basin. V. Coll. Géol. Afric, Clermont-Ferrand, 9–12 avril. Résumé des Comm.: Ann. Fac. Sci. Univ. Clermont, no. 41, Géol. et Minér., fasc. 19, p. 3–4.

    Google Scholar 

  • Briden, J. C., 1969, Palaeomagnetic research: Res. Inst. African Geol., Univ. Leeds, 13th Ann. Rept., p. 36.

    Google Scholar 

  • Bronner, G. and Sougy, J., 1969, Extension de la glaciation fini-ordovicienne à la région d’Aoucert (Sahara espagnol méridional). V. Coll. Géol. Afric., Clermont-Ferrand, 9–12 avril. Résumé des comm.: Ann. Fac. Sci. Univ. Clermont, no. 41, Géol. et Minér., fasc. 19, p. 79–80.

    Google Scholar 

  • Bullard, E. C., Everett, J. E., and Smith, A. G., 1965, The fit of the continents around the Atlantic, in A Symposium on Continental Drift: Phil. Trans. Roy. Soc., Ser. A, 258, p. 41–51.

    Article  Google Scholar 

  • Caby, R., 1970, La chaîne Pharusienne dans le nord-ouest de l’Ahaggar (Sahara central, Algerie); sa place dans l’orogènese du Précambrien supérieur en Afrique: Thèse, Docteur ès Science Naturelles, Université de Montpellier, France.

    Google Scholar 

  • Cahen, L. and Snelling, N. J., 1966, The Geochronology of Equatorial Africa: North Holland Publ., Co., Amsterdam, p. 95.

    Google Scholar 

  • Chiron, J.-C., 1970, Esquisse géologique de la chaîne des Mauritanides entre M’Bout et Moudjeria (Mauritanie occidentale): Bull. Soc. Géol. France, v. 11, no. 7, p. 170–184.

    Google Scholar 

  • Choubert, G., Faure-Muret, A., and Chariot, R., 1968, Le problème du Cambrien en Afrique nord-occidentale: Rev. Géogr. Phys. et Géol. Dynam., v. 10, p. 289–310.

    Google Scholar 

  • Chudeau, R., 1911, Note sur la géologie de la Mauritanie: Bull. Soc. Géol. France, v. 11, no. 4, p. 413–428.

    Google Scholar 

  • Claracq, P., Fabre, C., Freulon, J.-M., and Nougarède, F., 1958, Une discordance angulaire dans les “Grès inférieurs” de l’Adrar Tan Elak (Sahara central): Compt. Rend. Soc. Géol. France, p. 309-310.

    Google Scholar 

  • Clifford, T. N., 1966, Tectono-metallogenic units and metallogenic provinces of Africa: Earth Planet. Sci. Letters, v. 1, p. 421–434.

    Article  Google Scholar 

  • Clifford, T. N., 1967, The Damaran episode in the Upper Proterozoic-Lower Paleozoic structural history of southern Africa: Geol. Soc. Am. Spec. Paper 92, 100 p.

    Google Scholar 

  • Clifford, T. N., 1968, Radiometrie dating and the pre-Silurian geology of Africa, in: Radiometric Dating for Geologists, E. I. Hamilton and R. M. Farquhar, eds.: Interscience Publishers, London, New York, and Sydney, p. 299–416.

    Google Scholar 

  • Crenn, Y., 1957, Mesures gravimétriques et magnétiques dans la partie centrale de l’A.O.F.: O.R.S.T.O.M., série géophys., 43 p.

    Google Scholar 

  • Crenn, Y., and Rechenmann, R., 1963, Mesures gravimétriques et magnétiques en Afrique Occidentale (1956–58): Centre Géophysique de M’Bour (Sénégal), O.R.S.T.O.M. série géophys., no. 3.

    Google Scholar 

  • Crooks, J. P., 1968, Ann. Rept. Director Geol. Surv. Ghana, p. 54-63.

    Google Scholar 

  • Crow, A. T., 1952, The rocks of the Secondi series of the Gold Coast: Bull. Gold Coast Geol. Surv., no. 18.

    Google Scholar 

  • Delaire, L., 1948, Rapport Service Geologique: G. G. l’Afrique Occidentale France, p. 17.

    Google Scholar 

  • Dempster, A. N., 1966, Nigeria Geol. Surv. 1: 250,000 Sheet 61.

    Google Scholar 

  • Destombes, J., 1968a, Sur la présence d’une discordance générale de ravinement d’âge Ashgill supérieur dans l’Ordovicien terminal de l’Anti-Atlas (Maroc): Compt. Rend. Acad. Sci., sér., D., v. 267, p. 565–567.

    Google Scholar 

  • Destombes, J., 1968b, Sur la nature glaciare des sédiments du groupe du 2e Bani, Ashgill supérieur de l’Anti-Atlas, Maroc: Compt. Rend. Acad. Sci., sér., D., v. 267, p. 684–686.

    Google Scholar 

  • Destombes, J., Sougy, J., and Willefert, S., 1970, Révisions et découvertes paléontologiques (Brachiopodes, Trilobites et Graptolites) dans le Cambro-Ordovicien du Zemmour (Mauritanie septentrionale): Bull. Soc. Géol. France., v. 11, no. 7, p. 185–206.

    Google Scholar 

  • de Swardt, A. M. J., 1953, The geology of the country around Ilesha: Bull. Nigeria Geol. Surv., no. 23, p. 54.

    Google Scholar 

  • Dewey, J. F., 1969, Evolution of the Appalachian/Caledonian orogen: Nature, v. 222, p. 124–129.

    Article  Google Scholar 

  • Dewey, J. F. and Horsfield, B., 1970, Plate tectonics, orogeny and continental growth: Nature, v. 225, p. 521–525.

    Article  Google Scholar 

  • Dia, O., Sougy, J., and Trompette, R., 1970, Discordances de ravinement et discordance angulaire dans le “Cambro-Ordovicien” de la région de Mejeria (Taganet occidental, Mauritanie): Bull. Soc. Géol. France, v. 11, no. 7, p. 207–221.

    Google Scholar 

  • Dickinson, W. R. and Hatherton, T., 1967, Andesitic volcanism and seismicity around the Pacific: Science, v. 157, p. 801–803.

    Article  Google Scholar 

  • Dixey, F., 1920, Rept. Geol. Surv. Sierra Leone.

    Google Scholar 

  • Dourthe, P., 1959, Sur une discordance dans les grès inférieurs d’Ouallène (NW Hoggar): Compt. Rend. Soc. Géol. France, p. 214-215.

    Google Scholar 

  • Dourthe, P. and Serra, O., 1961, Nouvelles observations sur la série de la Gara Sayada (bordure nord-est de l’Eglab, Sahara occidental): Bull. Soc. Géol. France, v. 3, no. 7, p. 126–132.

    Google Scholar 

  • Dunham, K. C., Phillips, R., Chalmers, R. A., and Jones, D. A., 1958, The chromiferous ultra-basic rocks of eastern Sierra Leone: Sierra Leone Geol. Surv. Dept., Short, Paper no. 4.

    Google Scholar 

  • Falconer, J. D., 1911, The Geology and Geography of Northern Nigeria. Macmillan & Co. Ltd., London, p. 295.

    Google Scholar 

  • Faure, H., Furon, R., Lelubre, M., Monod, Th., Pires Soares, J. M., Sougy, J., and Tessier, F., 1956, Sahara, Afrique Occidentale Française et Portugaise: Lexique Stratigraph. Internat., v. 4, fasc. 2, 80 p.

    Google Scholar 

  • Ferrara, G. and Gravelle, M., 1966, Radiometric ages from western Ahaggar (Sahara) suggesting an eastern limit for the West African Craton: Earth Planet. Sci. Letters, v. 1, p. 319–324.

    Article  Google Scholar 

  • Fitches, W. R., 1970, Pan-African orogeny in the coastal region of Ghana: Nature, v. 226, p. 744–746.

    Article  Google Scholar 

  • Giraudon, R. and Sougy, J., 1963, Position anormale du socle granitisé des Hajar Dekhen sur la série d’Akjoujt et participation de ce socle à l’édification des Mauritanides hercyniennes (Mauritanie occidentale): Compt. Rend. Acad. Sci., v. 257, p. 937–940.

    Google Scholar 

  • Giraudon, R. and Vachette, M., 1964, Mesures d’âges absolus sur des formations de Mauritanie: Comp. Rend. Acad. Sci., v. 258, p. 3520–3523.

    Google Scholar 

  • Grant, N. K., 1967, Complete late Pre-Cambrian to early Palaeozoic orogenic cycle in Ghana, Togo, and Dahomey: Nature, v. 215, p. 609–610.

    Article  Google Scholar 

  • Grant, N. K., 1969a, The late Precambrian to early Paleozoic Pan-African orogeny in Ghana, Togo, Dahomey, and Nigeria: Bull. Geol. Soc. Am., v. 80, p. 45–56.

    Article  Google Scholar 

  • Grant, N. K., 1969b, The nature of the Pan-African orogeny in Nigeria: Res. Inst. African Univ. Leeds, 13th Ann. Rept., p. 20-21.

    Google Scholar 

  • Grant, N. K., 1970, Geochronology of Precambrian basement rocks from Ibadan, southwestern Nigeria: Earth Planet. Sci. Letters, v. 10, p. 29–38.

    Article  Google Scholar 

  • Hamilton, W., 1970, The Uralides and the motions of the Russian and Siberian platforms: Bull. Geol. Soc. Am., v. 81, p. 2553–2576.

    Article  Google Scholar 

  • Holmes, A., 1965, Principles of Physical Geology, 2nd ed.: The Ronald Press Co., New York, p. 1288.

    Google Scholar 

  • Holmes, A. and Cahen, L., 1955, African geochronology: Overseas Geol. Min. Res., v. 5, p. 3–39.

    Google Scholar 

  • Holmes, A. and Cahen, L., 1957, Géochronologie africaine, resultats acquis au 1 Juillet 1956: Acad. Roy. Sci., Colonials (Brussels), Classe Sci. Nat. Med., v. 5, fasc. 1.

    Google Scholar 

  • Hubbard, F. H., 1966, Nigeria Geol. Surv. 1: 250,000 Sheet 60.

    Google Scholar 

  • Hubbard, F. H., 1968, The association charnockite-Old Granite in south west Nigeria: J. Mining and Geol., v. 3, p. 25–32.

    Google Scholar 

  • Hurley, P. M., 1968, The confirmation of continental drift: Sci. Am., v. 218, no. 4, p.52–64.

    Article  Google Scholar 

  • Hurley, P. M., 1969, Further work on the Archean complex in Sierra Leone: M. I. T. Ann. Progress Rept., 1381-17, USAEC, p. 23.

    Google Scholar 

  • Hurley, P. M., Fairbairn, H. W., and Pinson, W. H., Jr., 1966, Continental drift investigations: M. I. T. Ann. Progress Rept., 1381-14, USAEC, p. 3-15.

    Google Scholar 

  • Hurley, P. M., Fairbairn, H. W., Pinson, W. H., and Laing, E. M., 1967, Rb-Sr whole-rock age measurements in Sierra Leone: M. I. T. Ann. Progress Rept., 1381-15, USAEC, p. 23-25.

    Google Scholar 

  • Hurley, P. M., Leo, G. W., and White, R. W., 1969, Approximate location of the boundary between the Eburnean and Lieberian orogenic provinces in eastern Liberia: M. I. T. Ann. Progress Rept., 1381-17, USAEC, p. 25-26.

    Google Scholar 

  • Hurley, P. M., Leo, G. W., White, R. W., and Fairbairn, H. W., 1970, The Liberian age province (ca. 2700 m. y.) and adjacent provinces in Liberia and Sierra Leone: M. I. T. Ann. Progress Rept., 1318-18, USAEC, p. 17-35.

    Google Scholar 

  • Hurley, P. M., Fairbairn, H. W., Pinson, W. H., Leo, G. W., and White, R. W., 1968, Age investigation in Liberia: M. I. T. Ann. Progress Rept., 1381-16, USAEC, p. 87-93.

    Google Scholar 

  • Hurley, P. M. and Rand, J. R., 1968, Review of age data in West Africa and South America relative to a test of continental drift, in: The History of the Earth’s Crust, R. A. Phinney, ed., Princeton University Press, p. 153-160.

    Google Scholar 

  • Hurley, P. M. and Rand, J. R., 1969, Pre-drift continental nuclei: Science, v. 164, p. 1229–1242.

    Article  Google Scholar 

  • Jacobson, R. R. E., Snelling, N. J., and Truswell, J. F., 1963, Age determinations in the geology of Nigeria, with special reference to the Older and Younger Granites: Overseas Geol. Min. Res., v. 9, p. 168–182.

    Google Scholar 

  • Jones, H. A. and Hockey, R. D., 1964, The geology of part of southwestern Nigeria: Bull. Nigeria Geol. Surv., no. 31, p. 87.

    Google Scholar 

  • Junner, N. R., 1929, Rept. Geol. Surv. Sierre Leone.

    Google Scholar 

  • Junner, N. R., 1939, Ann. Rept. Gold Coast Geol. Surv., 1938–39, p. 14.

    Google Scholar 

  • Junner, N. R. and Bates, D. A., 1945, Reports on the geology and hydrology of the coastal area east of the Akwapim range: Mem. Gold Coast Geol. Surv., no. 7, p. 23.

    Google Scholar 

  • Junner, N. R. and Hirst, T., 1946, The geology and hydrology of the Voltaian basin: Mem. Gold Coast Geol. Surv., no. 8, p. 51.

    Google Scholar 

  • Kennedy, W. Q., 1964, The structural differentiation of Africa in the Pan-African (±500 m. y.) tectonic episode: Res. Inst. African Geol., Univ. Leeds, 8th Ann. Rept., p. 48.

    Google Scholar 

  • Kennedy, W. Q., 1965, The influence of basement structure on the evolution of the coastal (Mesozoic and Tertiary) basins of Africa, in: Salt Basins Around Africa, Institute of Petroleum, London: Elsevier Publ. Co., Amsterdam, p. 7–16.

    Google Scholar 

  • King, B. C. and de Swardt, A. M. J., 1949, The geology of the Osi area, Ilorin Province: Bull. Nigeria Surv., no. 20, 92 p.

    Google Scholar 

  • Kolbe, P., Pinson, W. H., Jr., Saul, J. M., and Miller, E., 1967, Rb-Sr study on country rocks of the Bosumtwi crater, Ghana: Geochim. Cosmochim. Acta, v. 31, p. 869–875.

    Article  Google Scholar 

  • Lécorché, J.-P., 1970, tructure de la région dTjibiten (feuille El Gleïtat, E. d’Akjoujt, Mauritanie occidentale): Bull. Soc. Géol. France, v. 11, no. 7, p. 222–232.

    Google Scholar 

  • Lécorché, J.-P. and Sougy, J., 1970, Relations des formations d’Akjoujt (Mauritanides) avec le Paléozoïque de l’Adrar (bassin de Taoudeni) dans la région d’Iriji (E. d’Akjoujt, Mauritanie occidentale): Bull. Soc. Géol. France, v. 11, no. 7, p. 233–250.

    Google Scholar 

  • Legoux, P., 1939, Esquisse géologique de l’Afrique Occidentale française: Bull. Serv. Mines, A. O. F., no. 4, 134 p.

    Google Scholar 

  • Legrand, P., 1970, Description de Westonia chudeaui nov. sp., Brachiopode inarticulé de l’Adrar mauritanien (Sahara occidental): Bull. Soc. Géol. France, v. 11, no. 7, p. 251–256.

    Google Scholar 

  • Le Maître, D., 1952, Contribution a l’étude des faunes paléozoîques de l’Adrar mauritanien (Sahara occidental): Bull. Dir. Mines A. O. F., Dakar, no. 15, t. 2, p. 295–383.

    Google Scholar 

  • Leprun, J.-M., and Trompette, R., 1969, Subdivision du Voltaïen du massif de Gobnangou (République de Haute-Volta) en deux séries discordantes séparées par une tillite d’âge éocambrien probable: Compt. Rend. Acad. Sci., v. 269, p. 2187–2190.

    Google Scholar 

  • Lille, R., 1968, Étude géologique du Guidimaka (Mauritanie): Mém. Bur. Rech. Géol. Min., no. 55, p. 397.

    Google Scholar 

  • Lille, R., 1970, Précambrien et Cambro-Ordovicien du Guidimaka (Mauritanie méridionale). Tectoniques, métamorphismes syntectoniques et volcanisme dans un secteur des Mauritanides: Bull. Soc. Géol. France, v. 11, no. 7, p. 257–267.

    Google Scholar 

  • Machens, E., 1969, Observations nouvelles sur les relations entre le Voltaïen et l’Atacorien Infracambrien du “Parc national du W” au Niger (Afrique occidentale): Compt. Rend. Soc. Géol. France, p. 251-252.

    Google Scholar 

  • Mitchell, A. H. and Reading, H. G., 1969, Continental margins, geosynclines, and ocean floor spreading: J. Geol., v. 77, p. 629–646.

    Article  Google Scholar 

  • Mitchell-Thomé, R. C., 1965, The Precambrian of West Africa: Geol. Rundschau, v. 54, p. 1088–1143.

    Article  Google Scholar 

  • Monod, Th., 1952, L’Adrar mauritanien (Sahara occidentale). Esquisse géologique: Bull. Dir. Mines A. O. F., Dakar, no. 15, t. 1, p. 284.

    Google Scholar 

  • Monod, Th., 1962, Observations nouvelles sur la constitution de la série gréseuse infragothlandienne de l’Adrar mauritanien: Bull. Inst. Fr. Afr. Noire, v. 24, ser. A, no. 1, 47 p.

    Google Scholar 

  • Moore, J. G., Grantz, A., and Blake, M. G., Jr., 1963, The quartz-diorite line in northwestern United States: U. S. Geol. Surv. Prof. Paper, 450E, p. 89–93.

    Google Scholar 

  • Noakes, L. C., 1963, Symposium on age determinations in the British Commonwealth (1962): p. 128.

    Google Scholar 

  • Oyawoye, M. O., 1961, On an occurrence of fayalite quartz-monzonite in the basement complex around Bauchi, Northern Nigeria: Geol. Mag., v. 98, p. 473–482.

    Article  Google Scholar 

  • Oyawoye, M. O., 1962, The petrology of the district around Bauchi, Northern Nigeria: Journ. Geol., v. 70, p. 604–615.

    Article  Google Scholar 

  • Oyawoye, M. O., 1968, The petrology of a potassic syenite and its associated biotite pyroxenite at Shaki, Western Nigeria: Contr. Mineral. Petrol., v. 16, p. 115–138.

    Article  Google Scholar 

  • Parker, D. H., Fargher, M. N., Carter, J. D., and Turner, D. C, 1966a, Nigeria Geol. Surv. 1: 250,000 Sheet 7.

    Google Scholar 

  • Parker, D. H., Fargher, M. N., Truswell, J. F., Jones, D. K., and Turner, D. C., 19666, Nigeria Geol. Surv. 1: 250,000 Sheet 8.

    Google Scholar 

  • Pollett, J. D., 1951, The geology and mineral resources of Sierra Leone: Colon. Geol. Min. Res., v. 2, p. 3–28.

    Google Scholar 

  • Pougnet, R., 1957, Le Précambrian du Dahomey: Bull. Dir. Féd. Mines Géol. A. O. F., no. 22, 191 p.

    Google Scholar 

  • Querol, R., 1966, Regional geology of the Spanish Sahara, in: Symposium Bassins Sédimentaires du Littoral Africain, New Delhi, 1964: Assoc. Serv. Géol. Afr., Paris, p. 27-39.

    Google Scholar 

  • Reichelt, R., 1966, Métamorphisme et plissement dans le Gourma et leurs âges (Republique du Mali): Compt. Rend. Acad. Sci., v. 263, p. 589–592.

    Google Scholar 

  • Renaud, L., 1961, Le Précambrian du Sud-Ouest de la Mauritanie et du Sénégal oriental: Mém. Bur. Rech. Géol. Min., no. 5, p. 141.

    Google Scholar 

  • Rocci, G., 1962, Réinterprétation du Birrimien du Guidimaka (Mauritanie méridionale): Compt. Rend. Acad. Sci., v. 255, p. 3200–3202.

    Google Scholar 

  • Roques, M., 1948, Le Précambrien de l’Afrique occidentale française: Bull. Soc. Géol. France, v. 18, p. 589–628.

    Google Scholar 

  • Russ, W., 1957, The geology of parts of Niger, Zaria and Sokoto Provinces: Bull. Nigeria Geol. Surv., no. 27, p. 42.

    Google Scholar 

  • Sacchi, R., 1968, The geology of the Kabba-Lokoja region in south-western Nigeria: Bull. Soc. Geol. ltal., v. 87, p. 341–367.

    Google Scholar 

  • Saunders, R. S., 1970, Early Paleozoic orogeny in Ghana: foreland stratigraphy and structure: Bull. Geol. Soc. Am., v. 81, p. 233–240.

    Article  Google Scholar 

  • Schermerhorn, L. G. J., 1971, Upper Ordovician glaciation in northwest Africa? Discussion: Bull. Geol. Soc. Am., v. 82, p. 265–268.

    Article  Google Scholar 

  • Sinclair, J. H., 1928, Discovery of Silurian fossils in French Guinea: J. Geol., v. 36, p. 475–478.

    Article  Google Scholar 

  • Snelling, N. J., 1964, Age determination unit: Ann. Rept. Institute Geological Sciences for 1963, p. 39.

    Google Scholar 

  • Snelling, N. J., 1965, Age determination unit: Ann. Rept. Institute Geological Sciences for 1964, p. 48-51.

    Google Scholar 

  • Snelling, N. J., 1968, Age determination unit: Ann. Rept. Institute Geological Sciences for 1967, p. 152.

    Google Scholar 

  • Sougy, J., 1962a, West African fold belt: Bull. Geol. Soc. Am., v. 73, p. 871–876.

    Article  Google Scholar 

  • Sougy, J., 1962b, Contribution à l’étude géologique des Guelb Bou Leriah (région d’Aoucert, Sahara Espagnol): Bull. Soc. Géol. France, v. 4, no. 7, p. 436–445.

    Google Scholar 

  • Sougy, J., 1964, Les formations paléozoïques du Zemmour Noir (Mauritanie septentrionale). Étude stratigraphique, pétrographique et paléontologique: Ann. Fac. Sci. Univ. Dakar, v. 15, p. 695.

    Google Scholar 

  • Sougy, J., 1970, Grandes lignes structurales de la chaîne des Mauritanides et de son avantpays (socle précambrien et sa couverture infracambrienne et paléozoïque), Afrique de l’Ouest: Bull. Soc. Géol. France, v. 11, no. 7, p. 133–149.

    Google Scholar 

  • Sougy, J. and Bronner, G., 1969, Nappes hercyniennes au Sahara espagnol méridional (tronçon nord des Mauritanides). V. Coll. Géol. Afric, Clermont-Ferrand, 9-12 avril. Résumé des Comm.: Ann. Fac. Sci. Univ. Clermont, no. 41, Géol. et Minér., fasc. 19, p. 75–76.

    Google Scholar 

  • Sougy, J. and Lécorché, J.-P., 1963, Sur la nature glacaire de la base de la série de Garat el Hamoueïd (Zemmour, Mauritanie septentrionale): Compt. Rend. Acad. Sci., v. 256, p. 4471–4474.

    Google Scholar 

  • Sougy, J. and Trompette, R., 1966, Découverte d’une discordance de ravinement dans le complexe de base de l’Adrar mauritanien: Bull. Soc. Géol. France, v. 8, no. 7, p. 548–559.

    Google Scholar 

  • Tessier, F., Dars, R., and Sougy, J., 1961, Mise en évidence de charriages dans la “série d’Akjoujt” (République Islamique de Mauritanie): Compt. Rend. Acad. Sci., v. 252, p. 1186–1188.

    Google Scholar 

  • Tourgarinov, A. I., Knorre, K. G., Shanin, L. L., and Prokofieva, L. N., 1968, The geochronology of some Precambrian rocks of southern West Africa: Can. J. Earth Sci., v. 5, p. 639–642.

    Article  Google Scholar 

  • Trompette, R., 1970, Les stromatolites du “Précambrien supérieur” de l’Adrar de Mauritanie (Sahara occidentale): Sedimentology, v. 13, p. 123–154.

    Article  Google Scholar 

  • Truswell, J. F. and Cope, R. N., 1963, The geology of parts of Niger and Zaria Provinces, Northern Nigeria: Bull. Nigeria Geol. Surv., no. 29, p. 52.

    Google Scholar 

  • Vachette, M., 1964, Essai de synthèse des déterminations d’âges radiométriques de formations cristallines de l’Ouest africain (Côte d’Ivoire, Mauritanie, Niger): Ann. Fac. Sci. Univ. Clermont, no. 25, fasc. 8, p. 7–29.

    Google Scholar 

  • von Knorring, O. and Kennedy, W. Q., 1958, The mineral paragenesis and metamorphic status of garnet-hornblende-pyroxene-scapolite gneiss from Ghana (Gold Coast): Min. Mag., v. 31, p. 846–859.

    Article  Google Scholar 

  • Wilson, J. T., 1966, Did the Atlantic close and then open? Nature, v. 211, p. 676–681.

    Article  Google Scholar 

  • Wilson, N. W., 1965, Geology and mineral resources of part of the Gola Forests, southeastern Sierra Leone: Bull. Sierra Leone Geol. Surv., no. 4, p. 102.

    Google Scholar 

  • Wilson, N. W. and Marmo, V., 1958, Geology, geomorphology and mineral resources of the Sula Mountains: Bull. Sierra Leone Geol. Surv., no. 1, p. 91.

    Google Scholar 

  • Zimmermann, M., 1960, Nouvelle subdivision des séries antégothlandiennes de l’Afrique occidentale (Mauritanie, Soudan, Sénégal): Rept. XXIst Sess. Internat. Geol. Congr., Norway, Part VIII, p. 26-36.

    Google Scholar 

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Authors and Affiliations

  1. Department of Geology, Oberlin College, Ohio, USA

    Norman Kennedy Grant

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  1. Norman Kennedy Grant
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  1. Department of Geology, Case Western Reserve University, Cleveland, Ohio, USA

    Alan E. M. Nairn  & Francis G. Stehli  & 

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Grant, N.K. (1973). Orogeny and Reactivation to the West and Southeast of the West African Craton. In: Nairn, A.E.M., Stehli, F.G. (eds) The South Atlantic. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-3030-1_12

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