Late pan-african syenite-granite plutons in NW nigeria

Ajibade, 1980 Bailey, 1974, Continental rifting and alkaline magmatism, 148 Bowden, 1974, Peralkaline and associated ring-complexes in Nigeria-Niger Province, West Africa, 330 Brown, 1984, The geochemical characteristics of granitoids in contrasting arcs and comments on magma sources, J. geol. Soc. Lond., 141, 413, 10.1144/gsjgs.141.3.0413 Burke, 1970-1972, Orogeny in Africa, 583 Cahen, 1984 Chappell, 1974, Two contrasting granite types, Pacific geol., 8, 173 Clark, 1968, Crystal-chemical characterisation of omphacites, Am. Miner., 53, 840 De Swardt, 1973, The geology of the country around Ilesha, Geol. Surv. Nigeria. Bull., 23 Egbuniwe, 1982 Fitches, 1985, Late Proterozoic schist belts and plutonism in NW Nigeria, J. Geol. Soc. Lond., 142, 319, 10.1144/gsjgs.142.2.0319 Gomes, 1970, Pyroxenes from the alkaline rocks of Itapirapa, Sao Paulo, Brazil, Am. Miner., 55, 224 Grant, 1969, The Late Precambrian to early Palaeozoic Pan-African orogeny in Ghana, Togo, Dahomey and Nigeria, Geol. Soc. Am. Bull., 80, 45, 10.1130/0016-7606(1969)80[45:TLPTEP]2.0.CO;2 Grant, 1978, Structural distinction between a metasedimentary cover and an underlying basement in the 600 m.y. old Pan-African domain of north-western Nigeria, Bull. Geol. Soc. Am., 89, 50, 10.1130/0016-7606(1978)89<50:SDBAMC>2.0.CO;2 Holder, 1979, An emplacement mechanism for post-tectonic granites and its implications for their geochemical features, 116 Holt, 1982 Holt, 1978, The relationships between low-grade metasedimentary belts, calcalkaline volcanism and the Pan-African orogeny in NW Nigeria, Geol. Rundsch., 67, 631, 10.1007/BF01802808 Leake, 1978, Nomenclature of Amphiboles, Min. Mag., 42, 533, 10.1180/minmag.1978.042.324.21 Makanjuola, 1982, A review of the petrology of the Nigerian syenites, Niger. J. Min. geol., 19, 1 McCurry, 1977, Geochemistry of calc-alkaline volcanics in northwestern Nigeria, and a possible Pan-African suture zone, Earth Planet. Sci. Lett., 37, 90, 10.1016/0012-821X(77)90149-2 Ogezi, 1977 Oyawoye, 1967, The petrology of a potassic syenite and its associated biotite pyroxenite at Shakil Western Nigeria, Contr. Min. Petrol., 16, 115, 10.1007/BF00372792 Pitcher, 1978, The anatomy of a batholith, J. geol. Soc. Lond., 135, 157, 10.1144/gsjgs.135.2.0157 Pitcher, 1979, The nature, ascent and emplacement of granitic magmas, J. geol. Soc. Lond., 136, 627, 10.1144/gsjgs.136.6.0627 Pitcher, 1979, Comments on the geological environment of Granites, 1 Pitcher, 1983, Granite type and tectonic environment, 19 Ramsay, 1975, Ann. Rep. res. Inst. Afr. Geol. Leeds, 19, 18 Snelling, 1964, Age determination unit, Ann. Rept. Inst. Geol. Sci., 30 1974 Streckeisen, 1976, To each plutonic rock its proper name, Earth Sci. Rev., 12, 1, 10.1016/0012-8252(76)90052-0 Taylor, 1965, The application of trace element data to problems in petrology, Vol. 6, 133 Truswell, 1962 Turner, 1983, Upper Proterozoic Schist belts in the Nigerian sector of the Pan-African province of West Africa, Precambrian Res., 21, 55, 10.1016/0301-9268(83)90005-0 Van Breeman, 1977, Age and isotopic studies of some Pan-African granites from North-central Nigeria, Precambrian. Res., 4, 307, 10.1016/0301-9268(77)90001-8 White, 1982, Fault rocks of the Moine Thrust Zone, microstructures and textures of selected mylonites, Textures Microstruct, 5, 33, 10.1155/TSM.5.33