 | | Journal (article/letter/editorial) | | ilmenite, NYG-related aplite dyke, Tibchi complex, Kalato, Nigeria E. M. SAKOMA* AND R. F. MARTIN Department...zone of the Tibchi granite, exposed at Kalato, in the Tibchi ring-complex, northern Nigeria. Inclusions...‘ferropseudobrookite’ may well have stabilized it at Kalato. Ultimately, it is transformed to hematite + rutile...fugacity, ring complex, Tibchi, northern Nigeria. Introduction THE Kalato area, in northern Nigeria, lies within...south-central part of the Mesozoic Tibchi ring complex, in the contact zone of the Tibchi A-type biotite granite |  | | Journal (article/letter/editorial) | | by centres of ovcrsaturated magmatism such as Nigeria and Sudan. Thcre are also provinces with undersaturated...the abundance of zircon, uranium. thorium and complex Ti-Zr silicates, the importance o f columbite,...Geochemistry Mineralization Phanerozoic Cameron Niger Nigeria Sudan Saudi Arabia Namibia 1. Introduction Most...accompanied the uplift which followed it. I n Niger-Nigeria and also Sudan a more or less continuous sequence...Similarly the Mesozoic oversaturated magmatism of Nigeria has an almost identical age range to the mixed |  | Amuda, Abdulgafar Kayode, Yang, Xiaoyong, Deng, Jianghong, Faisal, Mohamed, Cao, Jinya, Bute, Saleh Ibrahim, Girei, Musa Bala, Elatikpo, Safiyanu Muhammad (2021) Petrogenesis of the peralkaline Dutsen Wai and Ropp complexes in the Nigerian younger granites: implications for crucial metal enrichments. International Geology Review, 63 (16) 2057-2081 doi:10.1080/00206814.2020.1821250 | Journal (article/letter/editorial) | | Sciences, Bayero University Kano, Kano State, Nigeria; dDepartment of Geology, Faculty of Science, Suez...eDepartment of Geology, Ahmadu Bello University, Zaria, Nigeria ABSTRACT ARTICLE HISTORY The Dutsen Wai and Ropp...within-plate alkaline ring complexes in north-central Nigeria. These complexes consist mainly of A-type granites...granites are found in Kwandonkwaya, Ningi Burra, Dago and Gashere complex (Ike 1985; Sakoma et al. 2000; Magaji...Dutsen Wai and Ropp ring complexes, north-central Nigeria. These data, together with previously published |  | | Book | | George Obaje Geology and Mineral Resources of Nigeria 123 Prof. Nuhu George Obaje Nasarawa State University...University Dept. Geology & Mining Keffi Nigeria nobaje@yahoo.com ISSN 0930-0317 ISBN 978-3-540-92684-9...Resources of Nigeria are very few and mostly not accessible in Libraries and Bookshops in Nigeria. This book...activities in the Geology and Mineral Resources of Nigeria. The author has brought together several published...students of geology in tertiary institutions in Nigeria and abroad. Additional insights were also provided |  | Macdonald, Ray, Bagiński, Bogusław, Kartashov, Pavel M., Zozulya, Dmitry, Dzierżanowski, Piotr, Jokubauskas, Petras (2015) Hydrothermal alteration of a chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction with a F-, CO2-rich fluid. Mineralogy and Petrology, 109 (6) 659-678 doi:10.1007/s00710-015-0394-2 | Journal (article/letter/editorial) | | Fe) assemblage through a series of texturally complex intermediate stages is described and electron microprobe...hydrothermal fluid in syenites of the Shuiquangou complex, China. In a study of A-type granites and syenites...bastnäsite-(Ce)-ilmenite-columbite-(Fe) assemblage via a complex series of intermediate steps which were arrested...an apatite-biotite-calcite rock with some relict albite. The replacement was accompanied by the loss of...electron microprobe at the Inter-Institute Analytical Complex at the Faculty Hydrothermal alteration of chevkinite |  | Dill, Harald G., Weber, Berthold, Melcher, Frank, Wiesner, Werner, Müller, Axel (2014) Titaniferous heavy mineral aggregates as a tool in exploration for pegmatitic and aplitic rare-metal deposits (SE Germany) Ore Geology Reviews, 57. 29-52 doi:10.1016/j.oregeorev.2013.08.023 | Journal (article/letter/editorial) | | aggregates of the same sort of minerals, such as complex penetration twins of cassiterite or mineral aggregates...b). Apart from the dominant alkaline feldspar, albite, muscovite and quartz, LCT- (Li–Cs–Ta) or NYF (Nb–Y–F)-pegmatites...following the well-known naming of an intergrowth of albite and orthoclase whose types of intergrowth are well...standards (in brackets) were used: Na Kα, TAP (albite); Mg Kα, TAP (chromite, kaersutite); Al Kα, TAP...and the northernmost part the Münchberg Gneiss Complex (MM) in Fig. 1c. The MM is interpreted as a tectonic |  | Guo, Shun, Tang, Pan, Su, Bin, Chen, Yi, Ye, Kai, Zhang, Lingmin, Gao, Yijie, Liu, Jingbo, Yang, Yueheng (2017) Unusual replacement of Fe-Ti oxides by rutile during retrogression in amphibolite-hosted veins (Dabie UHP terrane): A mineralogical record of fluid-induced oxidation processes in exhumed UHP slabs. American Mineralogist, 102 (11) 2268-2283 doi:10.2138/am-2017-6120 | Journal (article/letter/editorial) | | witnessed multiple types of replacement and a complex fluid evolution history, which are related to varia‑...C., and Cauzid, J. (2008) Rutile solubility in albite‑H2O and Na2Si2O7‑H2O at high temperatures and pressures...106–118. Miller, J.A., and Cartwright, I. (2006) Albite vein formation during exhumation of high‑pressure...ilmenite, NYG‑related aplite dyke, Tibchi complex, Kalato, Nigeria. Mineralogical Magazine, 66, 591–604 |  | | Journal (volume) | | Geochemistry of the Tioueine Pan-African Granite Complex (Hoggar, Algeria) : A. Azzouni-Sekkal and J . Boissonnas...Accessory Mineralogy of the Ririwai Biotite Granite, Nigeria, and its Albitized and Greisenized Facies: R. A...Magmatism, and Metamorphism in the Lower Benue Trough, Nigeria: J. Benkhelil ................... 467 A Model for...described above developed as an evolving volcanic complex on pri,nitive Archaean simatic crust. to be subsequently... as defined by SACS (1980) is a lithotectonic complex (De Wit er al. 1983; Paris 1985a) of which the |  | | Report (chapter) | | sillimanite gneiss from Skallevikshalsen, Lützow-Holm Complex, East Antarctica: Implications for ultrahigh-temperature...highest metamorphic grade in the Lützow-Holm Complex, East Antarctica. It occurs as an Fe–Mg– Ti compositional...KAWASAKI ET AL. from Mt Riiser-Larsen, Napier Complex, East Antarctica (Miyake & Hokada 2013). The composition...characterized by the presence of Fe3+ and forms a complex solid solution of the TiO5 ZMgTi2 O5 ZTi3 O5 system...sillimanite gneiss from Skallevikshalsen, Lützow-Holm Complex, East Antarctica. We also use a synthetic reaction |  | | Book | | ...................... 5.1 The Thghouaji Ring-Complex ...................... 5.2 Conclusion ...........are synchronous with the youngest Nigerian ring complex (Kinnaird and Bowden, this volume) and one can...transverse fracture zones such as the Cenomanian Los complex in Guinea (Lazarenkov 1970) or the late Jurassic...2). It is notable that the Los ultra-alkaline complex is much younger than the continental tholeiites...after the earliest transitional to alkaline ring complex-related rocks. We note that the Etinde ultra-alkaline |
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