A. R. Chakhmouradian, R. L. High-linnen, M. Van-lichtervelde, and P. Cerný, High-field-strength elements in carbonatitic rocks: Geochemistry, crystal chemistry and significance for constraining the sources of carbonatites, carbonatitic rocks Treatise on Geochemistry, pp.138-160, 2006.
DOI : 10.1016/j.chemgeo.2006.06.008

R. L. Linnen and M. Cuney, Granite-related rare-element deposits and experimental constraints on Ta-Nb-W-Sn-Zr-Hf mineralization. In Rare-Element Geochemistry and Mineral Deposits, pp.45-68, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00022536

J. Dostal, Rare earth element deposits of alkaline igneous rocks Resources 2017, 6, 34. [CrossRef] 6. Cuney, M.; Marignac, C.; Weisbrod, A. The Beauvoir topaz?lepidolite albite granite

A. M. Fouillac and P. Rossi, Near-solidus delta 18 O depletion in a Ta-Nb-bearing albite granite; the Beauvoir Granite, France, Economic Geology, vol.86, issue.8, pp.1704-1720, 1991.
DOI : 10.2113/gsecongeo.86.8.1704

M. Belkasmi, M. Cuney, P. J. Pollard, and A. Bastoul, Chemistry of the Ta-Nb-Sn-W oxide minerals from the Yichun rare metal granite (SE China): genetic implications and comparison with Moroccan and French Hercynian examples, Mineralogical Magazine, vol.64, issue.3, pp.507-523, 2000.
DOI : 10.1180/002646100549391

X. L. Huang, R. C. Wang, X. M. Chen, H. Hu, and C. S. Liu, VERTICAL VARIATIONS IN THE MINERALOGY OF THE YICHUN TOPAZ LEPIDOLITE GRANITE, JIANGXI PROVINCE, SOUTHERN CHINA, The Canadian Mineralogist, vol.40, issue.4, pp.1047-1068, 2002.
DOI : 10.2113/gscanmin.40.4.1047

K. Breiter, Nb-Ta-Ti-W-Sn-oxide minerals as indicators of a peraluminous P- and F-rich granitic system evolution: Podles??, Czech Republic, Mineralogy and Petrology, vol.148, issue.3, pp.225-248, 2007.
DOI : 10.2343/geochemj.33.199

M. René and R. ?koda, Nb-Ta-Ti oxides fractionation in rare-metal granites: Kr??sno-Horn?? Slavkov ore district, Czech Republic, Mineralogy and Petrology, vol.36, issue.1-4, pp.37-48, 2011.
DOI : 10.1007/s001260100160

C. Rao, R. C. Wang, H. Hu, and W. L. Zhang, COMPLEX INTERNAL TEXTURES IN OXIDE MINERALS FROM THE NANPING No. 31 DYKE OF GRANITIC PEGMATITE, FUJIAN PROVINCE, SOUTHEASTERN CHINA, The Canadian Mineralogist, vol.47, issue.5, pp.1195-1212, 2009.
DOI : 10.3749/canmin.47.5.1195

L. Xie, R. C. Wang, X. D. Che, F. F. Huang, S. Erdmann et al., Tracking magmatic and hydrothermal Nb???Ta???W???Sn fractionation using mineral textures and composition: A case study from the late Cretaceous Jiepailing ore district in the Nanling Range in South China, Ore Geology Reviews, vol.78, pp.300-321, 2016.
DOI : 10.1016/j.oregeorev.2016.04.003

Z. Y. Zhu, R. C. Wang, X. D. Che, J. C. Zhu, X. L. Wei et al., Magmatic???hydrothermal rare-element mineralization in the Songshugang granite (northeastern Jiangxi, China): Insights from an electron-microprobe study of Nb???Ta???Zr minerals, Ore Geology Reviews, vol.65, pp.749-760, 2015.
DOI : 10.1016/j.oregeorev.2014.07.021

V. I. Kovalenko, The genesis of rare metal granitoids and related ore deposits In Metallization Associated with Acid Magmatism, Geological Survey, pp.235-258, 1978.

G. N. Eby, Chemical subdivision of the A-type granitoids:Petrogenetic and tectonic implications, Geology, vol.20, issue.7, pp.641-644, 1992.
DOI : 10.1130/0091-7613(1992)020<0641:CSOTAT>2.3.CO;2

S. Ishihara, The granitoids series and mineralization, Econ. Geol, vol.75, pp.458-484, 1981.

A. J. White and B. W. Chappell, Ultrametamorphism and granitoid genesis, Tectonophysics, vol.43, issue.1-2, pp.7-22, 1977.
DOI : 10.1016/0040-1951(77)90003-8

F. Turlin, A. André-mayer, A. Moukhsil, O. Vanderhaeghe, F. Gervais et al., Unusual LREE-rich, peraluminous, monazite- or allanite-bearing pegmatitic granite in the central Grenville Province, Qu??bec, Ore Geology Reviews, vol.89, pp.627-667, 2017.
DOI : 10.1016/j.oregeorev.2017.04.019

C. Ballouard, M. Poujol, P. Boulvais, Y. Branquet, R. Tartèse et al., Nb-Ta fractionation in peraluminous granites: A marker of the magmatic-hydrothermal transition, Granitic Pegmatites in Science and Industry; ? Cerný, P, pp.231-234, 2016.
DOI : 10.1130/G37475.1

URL : https://hal.archives-ouvertes.fr/insu-01369015

?. Cerný, P. Ercit, and T. S. , Mineralogy of niobium and tantalum: Crystal chemical relationships, paragenetic aspects and their economic implications Granite-related ore deposits, ? Cerný, P.; Blevin, P.L.; Cuney, M. Econ. Geol, vol.8, issue.100, pp.405-461, 1982.

T. S. Ercit, R. L. Linnen, I. M. Samson, and . Eds, REE-enriched granitic pegmatites In Rare-Element Geochemistry and Mineral Deposits Short Course Notes; Geological Association of Canada, pp.175-199, 2005.

S. Tadesse and D. Zerihun, Composition, fractionation trend and zoning accretion of the columbite-tantalite group of minerals in the Kenticha rare-metal field (Adola, southern Ethiopia), Journal of African Earth Sciences, vol.23, issue.3, pp.411-431, 1996.
DOI : 10.1016/S0899-5362(97)00010-9

M. Van-lichtervelde, S. Salvi, D. Beziat, and R. L. Linnen, Textural Features and Chemical Evolution in Tantalum Oxides: Magmatic Versus Hydrothermal Origins for Ta Mineralization in the Tanco Lower Pegmatite, Manitoba, Canada, Economic Geology, vol.102, issue.2, pp.257-276, 2007.
DOI : 10.2113/gsecongeo.102.2.257

URL : https://hal.archives-ouvertes.fr/hal-00316054

M. Van-lichtervelde, F. Holtz, and J. M. Hanchar, Solubility of manganotantalite, zircon and hafnon in highly fluxed peralkaline to peraluminous pegmatitic melts, Contributions to Mineralogy and Petrology, vol.68, issue.1, pp.17-32, 2010.
DOI : 10.2138/am-1999-0910

K. Breiter and R. ?koda, Vertical zonality of fractionated granite plutons refected in zircon chemistry: The Cínovec A-type versus the Beauvoir S-type suite. Geol. Carpath Fractionation trends of the Nb and Ta-bearing oxide minerals in the Greer Lake pegmatitic granite and its pegmatite aureole, southeastern Manitoba, Am. Mineral, vol.63, issue.71, pp.383-398, 1986.

M. Harlaux, C. Marignac, M. Cuney, J. Mercadier, R. Magott et al., Nb-Ti-Y-HREE-W-U Oxide Minerals With Uncommon Compositions Associated With the Tungsten Mineralization In the Puy-Les-Vignes Deposit (Massif Central, France): Evidence For Rare-Metal Mobilization By Late Hydrothermal Fluids With A Peralkaline Signature, The Canadian Mineralogist, vol.53, issue.4, pp.653-672, 2015.
DOI : 10.3749/canmin.1400096

M. Harlaux, R. L. Romer, J. Mercadier, C. Morlot, C. Marignac et al., 40 Ma of hydrothermal W mineralization during the Variscan orogenic evolution of the French Massif Central revealed by U-Pb dating of wolframite, pp.21-51, 2017.

C. Lerouge, W. G. Gloaguen, and L. Bailly, Distribution of In and other rare metals in cassiterite and associated minerals in Sn ?? W ore deposits of the western Variscan Belt, European Journal of Mineralogy, vol.29, issue.4, pp.739-753
DOI : 10.1127/ejm/2017/0029-2673

URL : https://hal.archives-ouvertes.fr/insu-01555328

R. C. Wang, H. Hu, and A. C. Zhang, POLLUCITE AND THE CESIUM-DOMINANT ANALOGUE OF POLYLITHIONITE AS EXPRESSIONS OF EXTREME Cs ENRICHMENT IN THE YICHUN TOPAZ LEPIDOLITE GRANITE, SOUTHERN CHINA, The Canadian Mineralogist, vol.42, issue.3, pp.883-896, 2004.
DOI : 10.2113/gscanmin.42.3.883

R. L. Linnen, The solubility of Nb-Ta-Zr-Hf-W in granitic melts with Li and Li + F; constraints for mineralization in rare metal granites and pegmatites, Economic Geology, vol.93, issue.7, pp.1013-1025, 1998.
DOI : 10.2113/gsecongeo.93.7.1013

R. L. Linnen and H. Keppler, Columbite solubility in granitic melts: consequences for the enrichment and fractionation of Nb and Ta in the Earth's crust, Contributions to Mineralogy and Petrology, vol.128, issue.2-3, pp.213-227, 1997.
DOI : 10.1007/s004100050304

M. Tiepolo, P. Bottazzi, S. F. Foley, R. Oberti, R. Vannucci et al., Fractionation of Nb and Ta from Zr and Hf at Mantle Depths: the Role of Titanian Pargasite and Kaersutite, Journal of Petrology, vol.42, issue.1, pp.221-232, 2001.
DOI : 10.1093/petrology/42.1.221

S. Salvi and A. E. Williams-jones, Alkaline granite-syenite hosted deposits In Rare Element Geochemistry and Mineral Deposits Short Course Notes; Geological Association of Canada: St, pp.315-341, 2005.

H. G. Dill, Pegmatites and aplites: Their genetic and applied ore geology, Ore Geology Reviews, vol.69, pp.417-561, 2015.
DOI : 10.1016/j.oregeorev.2015.02.022

A. A. Aseri, R. L. Linnen, X. D. Che, T. Yves, and H. Francois, Effects of fluorine on the solubilities of Nb, Ta, Zr and Hf minerals in highly fluxed water-saturated haplogranitic melts, Ore Geology Reviews, vol.64, pp.736-746, 2015.
DOI : 10.1016/j.oregeorev.2014.02.014

A. Fiege, C. Kirchner, F. Holtz, R. L. Linnen, and W. Dziony, Influence of fluorine on the solubility of manganotantalite (MnTa2O6) and manganocolumbite (MnNb2O6) in granitic melts ??? An experimental study, Lithos, vol.122, issue.3-4, pp.165-174, 2011.
DOI : 10.1016/j.lithos.2010.12.012

H. Keppler, Influence of fluorine on the enrichment of high field strength trace elements in granitic rocks, Contributions to Mineralogy and Petrology, vol.104, issue.4, pp.479-488, 1993.
DOI : 10.1007/BF00321752

F. Melcher, T. Graupner, H. Gäbler, M. Sitnikova, F. Henjes-kunst et al., Tantalum???(niobium???tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta???Nb oxide mineralogy, geochemistry and U???Pb geochronology, Ore Geology Reviews, vol.64, pp.667-719, 2015.
DOI : 10.1016/j.oregeorev.2013.09.003

J. U. Akoh, P. O. Ogunleye, and A. A. Ibrahim, Geochemical evolution of micas and Sn-, Nb-, Ta- mineralization associated with the rare metal pegmatite in Angwan Doka, central Nigeria, Journal of African Earth Sciences, vol.112, pp.24-36, 2015.
DOI : 10.1016/j.jafrearsci.2015.08.017

S. Dewaele, F. De-clerq, P. Muchez, J. Schneider, R. Burgess et al., Geology of the cassiterite mineralisation in the Rutongo area, Rwanda (Central Africa): Current state of knowledge, Geol. Belgica, vol.13, pp.91-112, 2010.

S. Dewaele, F. Henjes-kunst, F. Melcher, M. Sitnikova, R. Burgess et al., Late Neoproterozoic overprinting of the cassiterite and columbite-tantalite bearing pegmatites of the Gatumba area, Rwanda (Central Africa), Journal of African Earth Sciences, vol.61, issue.1, pp.61-71, 2011.
DOI : 10.1016/j.jafrearsci.2011.04.004

S. Dewaele, N. Hulsbosch, Y. Cryns, A. Boyce, R. Burgess et al., Geological setting and timing of the world-class Sn

M. Diehl, Rare metal pegmatites of the Cape Cross-Uis pegmatite belt, Namibia: geology, mineralisation, rubidium-strontium characteristics and petrogenesis, Journal of African Earth Sciences (and the Middle East), vol.17, issue.2, pp.167-181, 1993.
DOI : 10.1016/0899-5362(93)90033-M

N. Hulsbosch, J. Hertogen, S. Dewaele, L. Andre, and P. Muchez, Petrographic and mineralogical characterisation of fractionated pegmatites culminating in the Nb-Ta-Sn pegmatites of the Gatumba area (western Rwanda). Geol, pp.105-117, 2013.

D. Küster, Rare-metal pegmatites of Wamba, central Nigeria?Their formation in relationship to late Pan-African granites. Miner. Depos, pp.25-33, 1990.

D. Küster, Granitoid-hosted Ta mineralization in the Arabian???Nubian Shield: Ore deposit types, tectono-metallogenetic setting and petrogenetic framework, Ore Geology Reviews, vol.35, issue.1, pp.68-86, 2009.
DOI : 10.1016/j.oregeorev.2008.09.008

P. Milési, S. F. Toteu, Y. Deschamps, J. L. Feybesse, C. Lerouge et al., An overview of the geology and major ore deposits of Central Africa: Explanatory note for the 1:4,000,000 map ???Geology and major ore deposits of Central Africa???, Journal of African Earth Sciences, vol.44, issue.4-5, pp.571-595, 2006.
DOI : 10.1016/j.jafrearsci.2005.10.016

P. O. Ogunleye, I. Garba, and E. C. Ike, Factors contributing to enrichment and crystallization of niobium in pyrochlore in the Kaffo albite arfvedsonite granite, Ririwai Complex, Younger Granites province of Nigeria, Journal of African Earth Sciences, vol.44, issue.3, pp.372-382, 2006.
DOI : 10.1016/j.jafrearsci.2005.12.006

W. Pohl, Metallogeny of the northeastern Kibara belt, Central Africa?Recent perspectives. Miner. Depos, pp.105-130, 1994.

S. Decrée, P. Boulvais, C. Cobert, J. M. Baele, G. Midende et al., Structurally-controlled hydrothermal alteration in the syntectonic Neoproterozoic Upper Ruvubu Alkaline Plutonic Complex (Burundi): Implications for REE and HFSE mobilities, Precambrian Research, vol.269, pp.281-295, 2015.
DOI : 10.1016/j.precamres.2015.08.016

D. Wit, M. J. Stankiewicz, J. Reeves, and C. , Restoring Pan-African-Brasiliano Connections: More Gondwana Control, Less Trans-Atlantic Corruption; The Geological Society London, pp.399-412, 2008.

P. A. Allen, The Huqf Supergroup of Oman: Basin development and context for Neoproterozoic glaciation, Earth-Science Reviews, vol.84, issue.3-4, pp.139-185, 2007.
DOI : 10.1016/j.earscirev.2007.06.005

A. Kröner and R. J. Stern, AFRICA | Pan-African Orogeny, In Encyclopedia of Geology, vol.1, pp.1-12, 2004.
DOI : 10.1016/B0-12-369396-9/00431-7

B. Houketchang, M. Penaye, J. Barbey, P. Toteu, S. F. Wandji et al., Petrology of high-pressure granulite facies metapelites and metabasites from Tchollirée and Banyo regions: Geodynamic implication for the Central African Fold Belt (CAFB) of north-central Cameroon, Precambrian Res, vol.224, pp.412-433, 2013.

B. Houketchang, M. Zhao, Y. Penaye, J. Zhang, S. H. Njel et al., Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting, Precambrian Res, vol.261, pp.40-53, 2015.

B. Houketchang, M. Penaye, J. Njel, U. O. Moussango, A. P. Sep et al., Geochronological, geochemical and mineralogical constraints of emplacement depth of TTG suite from the Sinassi Batholith in the Central African Fold Belt (CAFB) of northern Cameroon: Implications for tectonomagmatic evolution, Journal of African Earth Sciences, vol.116, pp.9-41, 2016.
DOI : 10.1016/j.jafrearsci.2015.12.005

V. Ngako, P. Affaton, and E. Njonfang, Pan-African tectonics in northwestern Cameroon: Implication for the history of western Gondwana, Gondwana Research, vol.14, issue.3, pp.509-522, 2008.
DOI : 10.1016/j.gr.2008.02.002

N. E. Negue, R. Tchameni, O. Vanderhaeghe, P. Barbey, P. M. Tchunte et al., Petrography and Geochemistry of the Mbip Granitic Massif, SW Tchollir&#233; (Central North Cameroon): Petrogenetic and Geodynamic Implication, International Journal of Geosciences, vol.06, issue.07, pp.761-775
DOI : 10.4236/ijg.2015.67062

N. E. Negue, R. Tchameni, O. Vanderhaeghe, S. Fenguye, P. Barbey et al., Structure and LA-ICP-MS zircon U-Pb dating of syntectonic plutons emplaced in the Pan-African Banyo-Tcholliré shear zone (central north Cameroon), J. Afr. Earth Sci, vol.131, pp.251-271, 2017.

J. Penaye, A. Kröner, S. F. Toteu, W. R. Van-schmus, and J. Doumnang, Evolution of the Mayo Kebbi region as revealed by zircon dating: An early (ca. 740Ma) Pan-African magmatic arc in southwestern Chad, Journal of African Earth Sciences, vol.44, issue.4-5, pp.530-542, 2006.
DOI : 10.1016/j.jafrearsci.2005.11.018

S. F. Toteu, R. W. Van-schmus, and J. Penaye, New U???Pb and Sm???Nd data from north-central Cameroon and its bearing on the pre-Pan African history of central Africa, Precambrian Research, vol.108, issue.1-2, pp.45-73, 2001.
DOI : 10.1016/S0301-9268(00)00149-2

S. F. Toteu, J. Penaye, and Y. Poudjom-djomani, Geodynamic evolution of the Pan-African belt in central Africa with special reference to Cameroon, Canadian Journal of Earth Sciences, vol.325, issue.1, pp.73-85, 2004.
DOI : 10.1016/0895-9811(95)00013-6

S. F. Toteu, J. Penaye, E. Deloule, W. R. Van-schmus, and R. Tchameni, Diachronous evolution of volcano-sedimentary basins north of the Congo craton: Insights from U???Pb ion microprobe dating of zircons from the Poli, Lom and Yaound?? Groups (Cameroon), Journal of African Earth Sciences, vol.44, issue.4-5, pp.428-442, 2006.
DOI : 10.1016/j.jafrearsci.2005.11.011

L. Fur and Y. , Section 2: Géologie Appliquée, chronique des mines, Les Indices de cuivre du Groupe Volcano-Sédimentaire de Poli (Cameroun); Bureau de Recherches Géologiques et Minières, p.79, 1971.

M. Isseini, A. S. André-mayer, O. Vanderhaeghe, P. Barbey, and E. Deloule, A-type granites from the Pan-African orogenic belt in south-western Chad constrained using geochemistry, Sr???Nd isotopes and U???Pb geochronology, Lithos, vol.153, pp.39-52, 2012.
DOI : 10.1016/j.lithos.2012.07.014

A. P. Kouske, C. E. Suh, R. T. Ghogomu, and V. Ngako, Na-Metasomatism and Uranium Mineralization during a Two-Stage Albitization at Kitongo, Northern Cameroon: Structural and Geochemical Evidence, International Journal of Geosciences, vol.03, issue.01, pp.258-279
DOI : 10.4236/ijg.2012.31028

URL : http://www.scirp.org/journal/PaperDownload.aspx?paperID=17653

D. Mbaguedje, Métallogénie de l'or et de L'uranium dans le Cadre de la Croissance et de la Différenciation de la Croûte au Néoprotérozoïque: Exemple du Massif du Mayo-Kebbi (Tchad) dans la Ceinture Orogénique d'Afrique Centrale, 2015.

M. Oesterlen and U. Vetter, Petrographic-Geochemical Characteristics and Genesis of an Albitized Uraniferous Granite in Northern Cameroon, Africa. Vein Type Uranium Deposits; Technical Document, pp.113-142, 1986.

P. Pinna, A. Edimo, J. Jézéquel, and D. Tchountchoui, Inventaire Minier du Centre-Nord Cameroun (Troisième Phase); Open-File Report 88 CMR 168, 1989.

B. Vels and R. Fritsche, Sodium metasomatism in the Kitongo uranium occurrence near Poli, Cameroon, pp.365-383, 1988.

S. F. Toteu, Geochemical characterization of the main petrographical and structural units of Northern Cameroon: implications for Pan-African evolution, Journal of African Earth Sciences (and the Middle East), vol.10, issue.4, pp.615-624, 1990.
DOI : 10.1016/0899-5362(90)90028-D

M. G. Abdelsalam, J. P. Liégeois, and R. J. Stern, The Saharan Metacraton, Journal of African Earth Sciences, vol.34, issue.3-4, pp.119-136, 2002.
DOI : 10.1016/S0899-5362(02)00013-1

M. G. Abdelsalam, S. S. Gao, and J. Liégeois, Upper mantle structure of the Saharan Metacraton, Journal of African Earth Sciences, vol.60, issue.5, pp.328-336, 2011.
DOI : 10.1016/j.jafrearsci.2011.03.009

B. Houketchang, M. Toteu, S. F. Deloule, E. Penaye, and J. , U???Pb and Sm???Nd dating of high-pressure granulites from Tchollir?? and Banyo regions: Evidence for a Pan-African granulite facies metamorphism in north-central Cameroon, Journal of African Earth Sciences, vol.54, issue.5, pp.144-154, 2009.
DOI : 10.1016/j.jafrearsci.2009.03.013

D. Dawaï, J. Bouchez, J. Paquette, and R. Tchameni, The Pan-African quartz-syenite of Guider (north-Cameroon): Magnetic fabric and U???Pb dating of a late-orogenic emplacement, Precambrian Research, vol.236, pp.132-144, 2013.
DOI : 10.1016/j.precamres.2013.07.008

R. Tchameni, F. Sun, D. Dawaï, G. Danra, L. Tékoum et al., Zircon dating and mineralogy of the Mokong Pan-African magmatic epidote-bearing granite (North Cameroon), International Journal of Earth Sciences, vol.12, issue.suppl 1, pp.1811-1830, 2016.
DOI : 10.1130/0091-7613(1984)12<515:MEAIPS>2.0.CO;2

A. A. Ganwa, W. Frisch, W. Siebel, G. E. Ekodeck, C. Kongnyuy et al., Archean inheritances in the pyroxene???amphibole-bearing gneiss of the M??iganga area (Central North Cameroon): Geochemical and 207Pb/206Pb age imprints, Comptes Rendus Geoscience, vol.340, issue.4, pp.211-222, 2008.
DOI : 10.1016/j.crte.2007.12.009

A. A. Ganwa, S. U. Klötzli, and C. Hauzenberger, Evidence for Archean inheritance in the pre-Panafrican crust of Central Cameroon: Insight from zircon internal structure and LA-MC-ICP-MS UPb ages, Journal of African Earth Sciences, vol.120, pp.12-22, 2016.
DOI : 10.1016/j.jafrearsci.2016.04.013

J. Penaye, S. F. Toteu, R. Tchameni, W. R. Van-schmus, J. Tchakounte et al., The 2.1Ga West Central African Belt in Cameroon: extension and evolution, Journal of African Earth Sciences, vol.39, issue.3-5, pp.159-164, 2004.
DOI : 10.1016/j.jafrearsci.2004.07.053

J. Doumnang, Géologie des Formations Néoprotérozoïques du Mayo Kebbi (Sud-Ouest du Tchad): Apports de la Pétrologie et de la Géochimie, Implications sur la Géodynamique au Panafricain, 2006.

V. Ngako, P. Jégouzo, and D. Soba, Deformation and metamorphism in the Poli pan-african orogenic belt (Northern Cameroon): Geodynamic and paleogeographic implications, Journal of African Earth Sciences (and the Middle East), vol.9, issue.3-4, pp.541-555, 1989.
DOI : 10.1016/0899-5362(89)90039-0

U. O. Njel, Paléogéographie d'un segment de l'orogenèse panafricaine: La ceinture volcano-sédimentaire de Poli (Nord Cameroun), C.R. Acad. Sci. Paris, vol.303, pp.1737-1742, 1986.

P. Pinna, J. Calvez, A. Abessolo, J. Angel, T. Mekoulou-mekoulou et al., Neoproterozoic events in the Tchollir?? area: Pan-African crustal growth and geodynamics in central-northern Cameroon (Adamawa and North Provinces), Journal of African Earth Sciences, vol.18, issue.4, pp.347-353, 1994.
DOI : 10.1016/0899-5362(94)90074-4

A. Pouclet, M. Vidal, J. Doumnang, J. Vicat, and R. Tchameni, Neoproterozoic crustal evolution in Southern Chad: Pan-African ocean basin closing, arc accretion and late- to post-orogenic granitic intrusion, Journal of African Earth Sciences, vol.44, issue.4-5, pp.543-560, 2006.
DOI : 10.1016/j.jafrearsci.2005.11.019

URL : https://hal.archives-ouvertes.fr/hal-00073651

J. Penaye, S. F. Toteu, A. Michard, J. M. Bertrand, and D. Dautel, Reliques granulitiques d'âge Protérozoïque inférieur dans la zone mobile panafricaine d'Afrique Centrale au Cameroun; géochronologie U-Pb sur zircons, C.R. Acad. Sci. Paris, vol.309, pp.315-318, 1989.

S. F. Toteu, A. Michard, J. M. Bertrand, and G. Rocci, U/pb dating of precambrian rocks from northern cameroon, orogenic evolution and chronology of the pan-african belt of central africa, Precambrian Research, vol.37, issue.1, pp.71-87, 1987.
DOI : 10.1016/0301-9268(87)90040-4

V. Ngako, (Segment Camerounais de la Chaine Pan-Africaine); Mémoires et Documents, p.185, 1986.

S. F. Toteu, A. Michard, J. Macaudière, J. Bertrand, and J. Penaye, Données géochronologiques nouvelles (U/Pb et Rb/Sr) sur la zone mobile pan-africaine du Nord Cameroun, C.R. Acad. Sci. Paris, vol.303, pp.375-378, 1986.

J. Carignan, P. Hold, G. Mevelle, J. Morel, D. Yeghichevan et al., Routine Analyses of Trace Elements in Geological Samples using Flow Injection and Low Pressure On-Line Liquid Chromatography Coupled to ICP-MS: A Study of Geochemical Reference Materials BR, DR-N, UB-N, AN-G and GH, Geostandards and Geoanalytical Research, vol.21, issue.2-3, pp.187-198, 2001.
DOI : 10.1111/j.1751-908X.2001.tb00595.x

C. Ballouard, P. Boulvais, M. Poujol, D. Gapais, P. Yamato et al., Tectonic record, magmatic history and hydrothermal alteration in the Hercynian Guérande leucogranite, pp.220-223, 2015.

S. E. Jackson, N. J. Pearson, W. L. Griffin, and E. A. Belousova, The application of laser ablation-inductively coupled plasma-mass spectrometry to in situ U???Pb zircon geochronology, Chemical Geology, vol.211, issue.1-2, pp.47-69, 2004.
DOI : 10.1016/j.chemgeo.2004.06.017

D. Gasquet, J. Bertrand, J. Paquette, J. Lehmann, G. Ratzov et al., Miocene to Messinian deformation and hydrothermal activity in a pre-Alpine basement massif of the French western Alps: new U-Th-Pb and argon ages from the Lauziere massif, Bulletin de la Societe Geologique de France, vol.181, issue.3, pp.227-241, 2010.
DOI : 10.2113/gssgfbull.181.3.227

URL : https://hal.archives-ouvertes.fr/halsde-00467414

M. Wiedenbeck, P. Allé, F. Corfu, W. L. Griffin, M. Meier et al., THREE NATURAL ZIRCON STANDARDS FOR U-TH-PB, LU-HF, TRACE ELEMENT AND REE ANALYSES, Three natural zircon standards for U?Th?Pb, Lu?Hf, trace element and REE analyses, pp.1-23, 1995.
DOI : 10.4095/122739

J. L. Paquette and M. Tiepolo, High resolution (5????m) U???Th???Pb isotope dating of monazite with excimer laser ablation (ELA)-ICPMS, Chemical Geology, vol.240, issue.3-4, pp.222-237, 2007.
DOI : 10.1016/j.chemgeo.2007.02.014

E. Van-achterbergh, C. G. Ryan, S. E. Jackson, and W. L. Griffin, Data reduction software for LA-ICPMS: Appendix, Laser Ablation-ICP Mass Spectrometry in the Earth Sciences: Principles and Applications

P. J. Sylvester and . Ed, Mineralogical Association of Canada (MAC) Short Courses Ser, pp.239-243, 2001.

K. R. Ludwig and . Isoplot, Ex Version 2.49. A Geochronological Toolkit for Microsoft Excel; Special Publication 1, pp.1-55, 2001.

S. I. Lahti, Zoning in columbite-tantalite crystals from the granitic pegmatites of the Er??j??rvi area, southern Finland, Geochimica et Cosmochimica Acta, vol.51, issue.3, pp.509-517, 1987.
DOI : 10.1016/0016-7037(87)90065-2

D. Atencio, M. B. De-andrade, A. G. Christy, R. Giere, and P. M. Kartashev, THE PYROCHLORE SUPERGROUP OF MINERALS: NOMENCLATURE, The Canadian Mineralogist, vol.48, issue.3, pp.673-698, 2010.
DOI : 10.3749/canmin.48.3.673

E. A. Middlemost, Naming materials in the magma/igneous rock system, Earth-Science Reviews, vol.37, issue.3-4, pp.215-224, 1994.
DOI : 10.1016/0012-8252(94)90029-9

T. N. Irvine and W. R. Baragar, A Guide to the Chemical Classification of the Common Volcanic Rocks, Canadian Journal of Earth Sciences, vol.8, issue.5, pp.523-548, 1971.
DOI : 10.1139/e71-055

S. E. Shand and . Rocks, Their Genesis, Composition, Classification, and Their Relations to Ore-Deposits 2, p.444, 1943.

F. Debon and P. Lefort, A cationic classification of common plutonic rocks and their magmatic associations: Principles, method, applications. Bull. Minéral, pp.493-510, 1988.

M. Cuney, Felsic magmatism and uranium deposits, Bulletin de la Societe Geologique de France, vol.185, issue.2, pp.75-92
DOI : 10.2113/gssgfbull.185.2.75

URL : https://hal.archives-ouvertes.fr/hal-01292776

M. Cuney, M. Friedrich, P. Blumenfeld, A. Bourguignon, M. C. Boiron et al., Metallogenesis in the French part of the Variscan orogen. Part I: U preconcentrations in pre-Variscan and Variscan formations ??? a comparison with Sn, W and Au, Tectonophysics, vol.177, issue.1-3, pp.39-57, 1989.
DOI : 10.1016/0040-1951(90)90273-B

S. Sun and W. Mcdonough, Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes, Magmatism in the Ocean Basins, pp.313-345, 1989.
DOI : 10.1144/GSL.SP.1989.042.01.19

S. R. Taylor and S. M. Mclennan, The geochemical evolution of the continental crust, Reviews of Geophysics, vol.98, issue.313, pp.241-265, 1995.
DOI : 10.1029/93JB00193

L. Turpin, M. Cuney, M. Friedrich, J. Bouchez, and M. Aubertin, Meta-igneous origin of Hercynian peraluminous granites in N.W. French Massif Central: implications for crustal history reconstructions, Contributions to Mineralogy and Petrology, vol.16, issue.B11, pp.163-172, 1989.
DOI : 10.1007/BF00306440

F. Bea, R. Residence, Y. Hönig, S. Copjaková, R. ?koda et al., Th and U in granites and crustal protoliths; implications for the chemistry of crustal melts Garnet as a major carrier of the Y and REE in the granitic rocks: An example from the layered anorogenic granite in the Brno Batholith, Czech Republic, J. Petrol. Am. Mineral, vol.37, issue.99, pp.521-552, 1996.

B. Barbarin, A review of the relationships between granitoid types, their origins and their geodynamic environments, Lithos, vol.46, issue.3, pp.605-626, 1999.
DOI : 10.1016/S0024-4937(98)00085-1

R. C. Wang, F. Fontan, S. J. Xu, X. M. Chen, and P. Monchoux, The association of columbite, tantalite and tapiolite in the Suzhou granite, China, Can. Mineral, vol.35, pp.699-706, 1997.

A. K. Rub, M. ?temprok, and M. G. Rub, Tantalvererzung im oberen Teil des C??novec (Zinnwalder) Granitstocks, Mineralogy and Petrology, vol.2, issue.3, pp.199-222, 1998.
DOI : 10.2113/gssgfbull.162.5.913

K. Breiter, H. J. Foerster, and R. Seltmann, Variscan silicic magmatism and related tin-tungsten mineralization in the Erzgebirge-Slavkovský les metallogenic province. Miner. Depos, pp.505-521, 1999.

H. J. Förster and D. Rhede, The Be???Ta-rich granite of Seiffen (eastern Erzgebirge, Germany): accessory-mineral chemistry, composition, and age of a late-Variscan Li???F granite of A-type affinity, Neues Jahrbuch f??r Mineralogie - Abhandlungen, vol.182, issue.3, pp.307-321, 2006.
DOI : 10.1127/0077-7757/2006/0055

L. Raimbault, M. Cuney, C. Azencott, J. L. Duthou, and J. L. Joron, Geochemical evidence for a multistage magmatic genesis of Ta-Sn-Li mineralization in the granite at Beauvoir, French Massif Central, Economic Geology, vol.90, issue.3, pp.548-576, 1995.
DOI : 10.2113/gsecongeo.90.3.548

M. Belkasmi, M. P. Cuney, R. E. Meintzer, and A. J. Anderson, Les columbo-tantalites zonées du granite de Montebras (Massif central français) Implications petrogénétiques Extreme fractionation in rare element granite pegmatites: Selected examples of data and mechanisms, C.R. Acad. Sci. Paris Can. Mineral, vol.326, issue.23, pp.459-465, 1985.

F. F. Huang, R. C. Wang, L. Xie, J. C. Zhu, S. Erdmann et al., Differentiated rare-element mineralization in an ongonite???topazite composite dike at the Xianghualing tin district, Southern China: An electron-microprobe study on the evolution from niobium???tantalum-oxides to cassiterite, Ore Geology Reviews, vol.65, pp.761-778, 2015.
DOI : 10.1016/j.oregeorev.2014.08.008

URL : https://hal.archives-ouvertes.fr/insu-01060865

A. G. Tindle and F. W. Breaks, Columbite?tantalite mineral chemistry from rare-element granitic pegmatites: Separation Lake area, N.W. Ontario Canada. Mineral. Petrol, vol.70, pp.165-198, 2000.
DOI : 10.1007/s007100070002

H. M. Abdalla, H. A. Helba, and F. Mohamed, Chemistry of columbite-tantalite minerals in rare metal granitoids, Eastern Desert, Egypt, Mineralogical Magazine, vol.62, issue.6, pp.821-836, 1998.
DOI : 10.1180/002646198548197

K. Breiter, From explosive breccia to unidirectional solidification textures: Magmatic evolution of a phosphorus-and fluorine-rich granite system (Podlesí, Kru?né hory Mts.; Czech Republic), Bull. Czech Geol. Surv, vol.77, pp.67-92, 2002.

P. W. Scott, R. D. Pascoe, and F. W. Hart, Columbite-tantalite, rutile and other accessory minerals from the St. Austell topaz granite, Cornwall, Proc. Ussher Soc, pp.165-170, 1998.

M. Belkasmi, M. Cuney, and P. J. Pollard, Micas and niobotantalates as indicators of petrogenetic evolution of rare-metal granites. The example of Yashan granitic complex (SE China), In Lepidolite, pp.13-14, 1992.

R. C. Wang, Étude Minéralogique et Cristallochimique de Cassitérite, Niobo-Tantalates et Minéraux Disséminés du Granite de Beauvoir (Allier); Implications Métallogéniques, 1988.

T. Njanko, A. Nédélec, M. Kwékam, R. Siqueira, and L. Esteban, Emplacement and deformation of the Fomop??a pluton: Implication for the Pan-African history of Western Cameroon, Journal of Structural Geology, vol.32, issue.3, pp.306-320, 2010.
DOI : 10.1016/j.jsg.2009.12.007

A. A. Ganwa, . Granitoïdes-de-meiganga-pétrographique, . Géochimique, . Structurale, and . Géochronologique, Leur Place dans la Chaîne Panafricaine, 2005.

M. Lasserre, Données géochronologiques nouvelles acquises au ler Janvier 1967 par la méthode au strontium appliquée aux formations cristallines et cristallophylliennes du Cameroun, Ann. Fac. Sci, vol.36, pp.109-144, 1967.

D. Dawaï, R. Tchameni, J. Bascou, W. S. Awe, P. M. Fosso-tchunte et al., Microstructures and magnetic fabrics of the Ngaound??r?? granite pluton (Cameroon): Implications to the late-Pan-African evolution of Central Cameroon Shear Zone, Journal of African Earth Sciences, vol.129, pp.887-897, 2017.
DOI : 10.1016/j.jafrearsci.2017.02.027