Petrology of the Mio-Pliocene volcanism to the North and East of Ngaoundéré (Adamawa, Cameroon)

Comptes Rendus - Geoscience

Volumn 340, Issue 1, 2008, Pages 28-37

  Nkouandou, Oumarou F ^a   Ngounouno, Ismaïla ^a   Déruelle, Bernard ^b   Ohnenstetter, Daniel ^c   Montigny, Raymond ^d   Demaiffe, Daniel ^e  

^a UNIVERSITY OF NGAOUNDERE   (Cameroon)

^b INSTITUT DE PHYSIQUE DU GLOBE DE PARIS   (France)

^c CRPG CNRS   (France)

^d UNIVERSITÉ DE STRASBOURG EOST   (France)

^e UNIVERSITÉ LIBRE DE BRUXELLES   (Belgium)

Author keywords

Adamawa; Cameroon; Mio Pliocene; Ngaound r ; Petrogenesis; Volcanism

Indexed keywords

BASALT; CRUSTAL CONTAMINATION; GARNET; ISOTOPIC COMPOSITION; LAVA; PETROGENESIS; PETROLOGY; PHONOLITE; PLIOCENE; TRACE ELEMENT; TRACHYTE; VOLCANISM;

AFRICA; CAMEROON; NGAOUNDERE; NORD PROVINCE; SUB-SAHARAN AFRICA; WEST AFRICA;

TRACHYTES;

EID: 38349145601     PISSN: 16310713     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.crte.2007.10.012     Document Type: Article

References (32)

1. Ashwal L.D., Demaiffe D., and Torsvik T.H. Petrogenesis of Neoproterozoic granitoids and related rocks from the Seychelles: the case for an Andean-type arc origin. J. Petrol. 43 (2002) 45-83
2. Carignan J., Hild P., Mévelle G., Morel J., and Yeghicheyan D. 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 Newslett. 25 (2001) 187-198
3. Chauvel C., Hofmann A.W., and Vidal P. HIMU-EM: The French Polynesian connection. Earth Planet. Sci. Lett. 110 (1992) 99-119
4. Déruelle B., Ngounouno I., and Demaiffe D. The 'Cameroon Hot Line' (CHL): A unique example of active alkaline intraplate structure in both oceanic and continental lithospheres. C. R. Geoscience 339 (2007) 589-600
5. Dorbath L., Dorbath C., Stuart G., and Fairhead D. Structure de la croûte sous le plateau de l'Adamaoua (Cameroun). C. R. Acad. Sci. Paris. Ser. II 298 (1984) 539-542
6. Dumont J.-F. Étude structurale des bordures nord et sud du plateau de l'Adamoua : influence du contexte atlantique. Géodynamique 2 (1987) 55-68
7. J. Ézangono, B. Déruelle, J.-J. Ménard, Benmoreites from Tchabal Djinga volcano (Adamaoua, Cameroon): products of kaersutite + plagioclase assimilation by a trachytic magma, Terra Abstr. Suppl. 1, Terra Nova 7 (1995) 161.
8. Ferguson A.K. The natural occurrence of aegyrine-neptunite solid solution. Contrib. Mineral. Petrol. 60 (1977) 247-253
9. Gouhier J., Nougier J., and Nougier D. Contribution à l'étude volcanologique du Cameroun (« ligne du Cameroun » - Adamaoua). Ann. Fac. Sci. Cameroun 17 (1974) 3-48
10. Green T.H. Experimental studies of trace-element partitioning applicable to igneous petrogenesis - Sedona 16 years later. Chem. Geol. 117 (1994) 1-36
11. Hamilton D.L. Nephelines as crystallization temperature indicators. J. Geol. 69 (1961) 321-329
12. Hansen K. Lamprophyres and carbonatitic lamprophyres related to rifting in the Labrador Sea. Lithos 13 (1980) 145-153
13. Hofmann A.W. Chemical differentiation of the Earth: the relationship between mantle, continental crust, oceanic crust. Earth Planet. Sci. Lett. 90 (1988) 297-314
14. Kelley K.A., Plank T., Ludden J., and Staudigel H. Composition of altered oceanic crust at ODP sites 801 and 1149. Geochem. Geophys. Geosyst. 4 (2003) 10.1029/2002GC000435
15. Lasserre M. Contribution à l'étude géologique de l'Afrique. Étude de la partie orientale de l'Adamaoua (Cameroun central). Bull. Dir. Min. Geol. 4 (1961) 1-131
16. B.E. Leake and 20 co-authors, Nomenclature of amphiboles: Report of the Subcommittee on amphiboles of the International Mineralogical Association Commission on new minerals and mineral names, Mineral. Mag. 61 (1997) 295-321.
17. 39Ar dates, petrology, Sr-Nd-O isotopes and their petrogenetic significance. Contrib. Mineral. Petrol. 135 (1999) 133-150
18. Morimoto N., Fabriès J., Ferguson A.K., Ginzburg I.V., Ross M., Seifert F.A., Zussman J., Aoki K., and Gottardi G. Nomenclature of pyroxenes. Mineral. Mag. 52 (1988) 535-550
19. Nielsen T.F.D. The occurrence and formation of Ti-aegyrines in peralkaline syenites. An example from the Tertiary ultramafic alkaline Gardiner complex, East Greenland. Contrib. Mineral. Petrol. 69 (1979) 235-244
20. Njonfang E., Ngako V., Kwekam M., and Affaton P. Les orthogneiss calco-alcalins de Foumban-Bankim : témoins d'une zone interne de marge active panafricaine en cisaillement. C. R. Geoscience 338 (2006) 606-616
21. Nono A., Déruelle B., Demaiffe D., and Kambou R. Tchabal Nganha volcano in Adamawa (Cameroon): petrology of a continental alkaline lava series. J. Volcanol. Geotherm. Res. 60 (1994) 147-178
22. T. Oba, K. Yagi, Y. Hariya, Stability relations of kaersutite reinvestigated and natural and synthetic samples, Congr. I.M.A. (1982) Karma 282.
23. Parsons I., and Brown W.L. Sidewall crystallization in the Klokken intrusion: Zoned ternary feldspars and coexisting minerals. Contrib. Mineral. Petrol. 98 (1988) 431-443
24. Poudjom Djomani Y.H., Diament M., and Wilson M. Lithospheric structure across the Adamawa plateau (Cameroon) from gravity studies. Tectonophysics 273 (1997) 317-327
25. Stracke A., Hofmann A.W., and Hart R.S. FOZO, HIMU, and the rest of the mantle zoo. Geochem. Geophys. Geosyst. 6 (2005) 10.1029/2004GC000824 Q05007
26. Strong D.F., and Taylor R.P. Magmatic-subsolidus and oxidation trends in composition of amphiboles from silica-saturated peralkaline igneous rocks, Tschermaks. Mineral. Petrol. Mitt. 32 (1984) 211-222
27. Tchakounté J.N., Toteu S.F., Van Schmus W.R., Penaye J., Deloule E., Mvondo Ondoua J., Houketchang M.B., Ganwa A.A., and White W.M. Evidence of ca 1.6-Ga detrital zircon in the Bafia Group (Cameroon): Implication for the chronostratigraphy of the Pan-African Belt north of the Congo craton. C. R. Geoscience 339 (2007) 132-142
28. Tchameni R., Pouclet A., Penaye J., Ganwa A.A., and Toteu S.F. Petrography and geochemistry of the Ngaoundéré Pan-African granitoids in central North Cameroon: implications for their sources and geological setting. J. Afr. Earth Sci. 44 (2006) 511-529
29. Temdjim R., Njilah I.K., Kamgang P., and Nkoumbou C. Données nouvelles sur les laves felsiques de Ngaoundéré (Adamaoua, ligne du Cameroun) : chronologie K-Ar et pétrologie. Afr. J. Sci. Technol. 5 (2004) 113-123
30. Thornton C.P., and Tuttle O.F. Chemistry of igneous rocks, I. Differentiation Index. Am. J. Sci. 258 (1960) 664-684
31. Toteu S.F. Geochemical characterization of the main petrographical and structural units of Northern Cameroon: implications for Pan-African evolution. J. Afr. Earth Sci. 10 (1990) 615-624
32. Weaver B.L. The origin of ocean island basalt end-member compositions: trace element and isotopic constraints. Earth Planet Sci. Lett. 104 (1991) 381-397