Petrographic and geochemical study of Doua granitoids (adamawa-yade domain, center Cameroon): Petrogenesis and geodynamic implication
-
2022-01-02 https://doi.org/10.14419/ijag.v9i2.31702
-
Petrography, Geochemistry, Granitoids, Doua, Adamawa-Yade Domain, Pan-African Fold Belt of Central Africa -
Abstract
The region Doua is located in the central area or Adamawa-Yade domain of the Pan-African fold belt in Cameroon. This work focuses on the petrography and geochemistry of granitoids in this region. The study area is made up of plutonic rocks (amphibole and biotite granite, biotite and muscovite granite, syeno-diorite, syenite. The geochemical study of the granitoids in the area shows that the rocks are magnesian and slightly iron-bearing, potassic to hyper-potassic calc - alkaline, metaluminous and belongs to type I granitoids. The profiles of the rare earths (REE) show a negative anomaly in Eu. The multi-element spectra show positive anomalies, or negative anomalies for some samples in Ba and Negative anomalies in Nb-Ta, Sr and Ti. The process which led to the formation of these rocks is fractional crystallization. These rocks are setup in a syn-collisional subduction environment (volcanic arc granitoids).
Â
Â
 -
References
[1] Bessoles B., Trompette R., 1980. Géologie de l’Afrique. La chaîne panafricaine « zone mobile de l’Afrique (partie Sud) et zone mobile Soudanaise ». Memoire du BRGM. Paris 1980, 375p.
[2] Nzenti J. P., Barbey P., Macaudière J., Soba D., 1988. Origin and evolution of the late Precambrian high-grade Yaoundé gneisses (Cameroon). Precambrian Research, 38, 91–109. https://doi.org/10.1016/0301-9268(88)90086-1.
[3] Ngako V., Jegouzo P., Nzenti J. P., 1992. Champ de raccourcissement et de cratonisation du Nord-Cameroun du paléozoïque supérieur au paléozoïque moyen. Comptes Rendus de l’Académie des Sciences, Paris, 315, 457-463.
[4] Ngako V., Affaton P., Njanko T., 2003. Pan-African tectonique evolution in central and southern Cameroon: Transposition during sinistral shear mouvements. Journal of African Earth Sciences, 36, 207-214. https://doi.org/10.1016/S0899-5362(03)00023-X.
[5] Almeida F. F., Hasui Y., Neves B. B., Fuck R. A., 1981. Brazilian structural provinces. Earth Sciences Review, 17, 1-29. https://doi.org/10.1016/0012-8252(81)90003-9.
[6] Castaing C., Triboutet C., Feybesse J. L., Chevremont P., 1993. Tectonometamorphic evolution of Ghana, Togo and Benin in the ligth of the Pan-African / Basiliano orogeny. Tectonophysics, 218, 323-347. https://doi.org/10.1016/0040-1951(93)90322-B.
[7] Neves S. P., Melo S. C., Moura C. A. V., Mariano G., Silva J. M. R., 2004. Zircon Pb-Pb geochronology of the Caruaru area, north-eastern Brazil: temporal constraints on the Proterozoic evolution of Borborema Province. International Geology Review, 46, 52-63. https://doi.org/10.2747/0020-6814.46.1.52.
[8] Oliveira E. P., Toteu S. F., Araújo M. N. C., Carvalho M. J., Nascimento R. S., Bueno J. F., Mcnaughton N., Basilici G., 2006. Geologic correlation between the Neoproterozoic Sergipano belt (NE Brazil) and the Yaoundé belt (Cameroon, Africa). Journal of African Earth Sciences, 44, 470-478. https://doi.org/10.1016/j.jafrearsci.2005.11.014.
[9] Van Schmus W. R., Oliveira E. P., Da Silva Filho A. F., Toteu S. F., Penaye J., Guimarães I. P., 2008. Proterozoic links between the Borborema Province, NE Brazil, and the Central African Fold Belt. Geological Society, London, Special Publication, V. 294, 69-99. https://doi.org/10.1144/SP294.5.
[10] Archanjo C. J., Viegas L. G. F., Hollanda M. H. B. M., Souza L. C., Liu D., 2013. Timing of the HT/LP transpression in the Neoproterozoic Seridó Belt (Borborema Province, Brazil): constraints from U-Pb (SHRIMP) geochronology and implications for the connections between NE Brazil and West Africa. Gondwana Research, 23, 701-714. https://doi.org/10.1016/j.gr.2012.05.005.
[11] Toteu S. F., Penaye J., Poudjom D. Y., 2004. Geodynamic evolution of the Pan-African belt in central Africa with special reference to Cameroon. Canadian Jounal of Earth Sciences, 41, 73-85. https://doi.org/10.1139/e03-079.
[12] Ngako V., Affaton P., Njonfang E., 2008. Pan-African tectonics in northwestern Cameroon: implication for the history of western Gondwana. Gondwana Research, 14, 509-522. https://doi.org/10.1016/j.gr.2008.02.002.
[13] Toteu S. F., Van Schmus W. R., Penaye J., Michard A., 2001. New U-Pb and Sm-Nd data from North central Cameroon and bearing on the pre-panafrican history of central Africa. Precambrian Research, 67, 45-73. https://doi.org/10.1016/S0301-9268(00)00149-2.
[14] Tchakounte J., Toteu S. F., Van Schmus W. R., Penaye J., Deloule E., Mvondo O. J., Bouyo H. M., Ganwa A. A., White W., 2007. Evidence of Ca 1.6 Ga detrical zircon in the Bafia Group (Cameroun): Implication for the chronostratigraphy of the Pan-African Belt North of the Congo Craton. Comptes Rendus de Géosciences, 339, 132-142. https://doi.org/10.1016/j.crte.2007.01.004.
[15] Ganwa A. A., Wolfgang F., Wolfgang S., Shang K. C., Mvondo Ondoa J., Satir M., Tchakounte Numbem J., 2008a. Zircon 207Pb / 206Pb evaporation ages of Panafrican métasédimentary rocks in the Kombé-II area (Bafia group Cameroon): constaints on protolith age and provenance. Journal of African Earth Sciences, V. 51, 77-88. https://doi.org/10.1016/j.jafrearsci.2007.12.003.
[16] Njanko T., Nedelec A., Affaton P., 2006. Synkinematic high-K calc-alkaline plutons associated with the Pan-African Central Cameroon shear zone (W-Tibati area): Petrology and geodynamic significance. Journal of Africa Earth Sciences, 44, 494–510. https://doi.org/10.1016/j.jafrearsci.2005.11.016.
[17] Nzenti J. P., Badibanga K., Gerhard W., Ruananza T. L., 2006. Synkinematic emplacement of granitoids in a Pan-African shear zone in Central Cameroon. Journal of African Earth Sciences, 45, 75-76. https://doi.org/10.1016/j.jafrearsci.2006.01.005.
[18] Ganwa A. A., Siebel W., Frisch W., Shang C. K., Ekodeck G. E., 2011c. Geochemistry and geochronology of the Méiganga metadiorite: implications on the timing of D2 deformational phase in Adamawa Yadé Domain in Cameroon. International Journal of Biological and Chemical Sciences, 5(4), 1754-1767. https://doi.org/10.4314/ijbcs.v5i4.37.
[19] Ganwa A. A., Klötzli U. S., Hauzenberger C., 2016. Evidence for Archean inheritance in the pre-Panafrican crust of Central Cameroon: Insight from zircon internal structure and LA-MCICP-MS U-Pb ages. Journal of African Earth Sciences, 120, 12-22. https://doi.org/10.1016/j.jafrearsci.2016.04.013.
[20] Daouda D., Tchameni R., Bascou J., Awe Wangmene S., Fosso Tchunte P. M., Bouchez J. L., 2017. Microstructures and magnetic fabrics of the Ngaoundéré granite pluton (Cameroon): Implications to the late-Pan-African evolution of Central Cameroon Shear Zone. Journal of African Earth Sciences, 129, 887-897. https://doi.org/10.1016/j.jafrearsci.2017.02.027.
[21] Naïmou S., Ganwa A. A., Urs Klötzli., Amadou D. K., Ekodeck G. E., 2014. Petrography and geochemistry of Precambrian basement straddling the Cameroon-Chad border: The Touboro-Baïbokoum area. International Journal of Geosciences, 5, 498-431. https://doi.org/10.4236/ijg.2014.54040.
[22] Toteu S. F., Penaye J., Poudjom D. Y., 2004. Geodynamic evolution of the Pan-African belt in central Africa with special reference to Cameroon. Canadian Journal of Earth Sciences, 41, 73-85. https://doi.org/10.1139/e03-079.
[23] Abdelsalam, M. G., Liégeois, J. P., Stern R. J., 2002. The Saharan Metacraton. Journal of African Earth Sciences, 34, 119-136. https://doi.org/10.1016/S0899-5362(02)00013-1.
[24] Toteu S. F, Yongue Fouateu R, Penaye J., Tchakounte J., Ciriaque S. A., Mouangue, Van Schmus W. R., Deloule E., Stendal H., 2006. U–Pb dating of plutonic rocks involved in the nappe tectonic in southern Cameroon: consequence for the Pan-African orogenic evolution of the central African fold belt. Journal of African Earth Sciences, 44. 479-493. https://doi.org/10.1016/j.jafrearsci.2005.11.015.
[25] Soba D., Michard A., Toteu S. F., Norman D. I., Penaye J., Ngako V., Nze Nti J. P., Dautel D., 1991. Données géochronologiques nouvelles (Rb-Sr ; U-Pb ; Sm-Nd) sur la zone mobile panafricaine de l’Est Cameroun : Age protérozoïque supérieur de la série de Lom. Comptes Rendus de l’Académie des Sciences, Paris, 315, 1453-1458.
[26] Amadou D. K., Ganwa A. A., Klötzli Urs, Hauzenberger C., Ngounouno I., Naïmou S., 2017. The Pan-African Biotite-Muscovite Granite and Amphibole-Biotite Granite of Doua (Central Cameroon): Zircon Features, LA-MC-ICP-MS U-Pb Dating and Implication on Their Tectonic Setting. Journal of Geosciences and Geomatics, Vol. 5, No. 3, 119-129. https://doi.org/10.12691/jgg-5-3-3.
[27] Toteu S. F., Penaye J., Deschamps Y., Nyama Atibagoua B., Bouyo Houkrtchang M., Sep Nlonmgan J. P., Mbola Ndzama S. P., 2008. Géologie et ressources minérales du Cameroun 1/1000000 33rd. International Congress, Oslo Norway, 6-14.
[28] Ganwa A. A., Wolfgang S., Wolfgang F., Kongnyuy C. S., 2011b. Geochemistry of magmatic rocks and time constraints on deformational phases and shear zone slip in the Méiganga area, central Cameroon. International Geology Review, Vol. 33, N° 7, June 2011, 759-784. https://doi.org/10.1080/00206810903211161.
[29] Ganwa A. A., Wolfgang S., Kongnyuy C. S., Naimou S. and Ekodeck G. E., 2011a. New Constraints from Pb-Evaporation Zircon Ages of the Méiganga Amphibole-Biotite Gneiss, Central Cameroon, on Proterozoic Crustal Evolution. International Journal of Geosciences, 2011, 2, 138-147. https://doi.org/10.4236/ijg.2011.22014.
[30] Nkouandou O. F., Ngounouno I., Déruelle B., Ohnenstetter D., Montigny R., Damaiffe D., 2008. Pretology of the Mio-Pliocene volcanism to the North and East of Ngaoundere (Adamwa-Cameroon). Comptes Rendus Géosciences, 340, 28-37. https://doi.org/10.1016/j.crte.2007.10.012.
[31] Tchameni R., Pouclet A., Penaye J., Ganwa A. A., Toteu S.F., 2006. Petrography and géochemistry of the Ngaoundéré Pan-African granitoïds in Central Nord Cameroon: implication for their sources and geological setting. Journal of African Earth Sciences 44, 511-529. https://doi.org/10.1016/j.jafrearsci.2005.11.017.
[32] Djouka-Fonkwé M. L., Schulz B., Schüssler U., Tchouankoué J. P., Nzolang, C., 2008. Geochemistry of the Bafoussam Pan-African I- and S-type granitoids in western Cameroon. Journal of African Earth Sciences, 50, 148-167. https://doi.org/10.1016/j.jafrearsci.2007.09.015.
[33] Ganwa A. A., Wolfgang S., Kongnyuy C. S., Naimou S. and Ekodeck G. E., 2011a. New Constraints from Pb-Evaporation Zircon Ages of the Méiganga Amphibole-Biotite Gneiss, Central Cameroon, on Proterozoic Crustal Evolution. International Journal of Geosciences, 2011, 2, 138-147. https://doi.org/10.4236/ijg.2011.22014.
[34] Ngnotue T., Nzenti J. P., Barbey P., Tchoua F. M., 2000. The Ntui-Bétamba high-grade ngeisses: a Nortward extension of the pan-African Yaoundé gneisses in Cameroon. Journal of African Earth Sciences, 31, 369-381. https://doi.org/10.1016/S0899-5362(00)00094-4.
[35] Cox K. G., Bell J. D., Pankust R. J., 1979. The interpretation of igneous rocks. George Allen & Unwin. https://doi.org/10.1007/978-94-017-3373-1.
[36] Wilson M., 1989. Igneous Petrogenesis. London: Unwin Hyman, London, 466p. https://doi.org/10.1007/978-1-4020-6788-4.
[37] Le Maitre R. W., 1989. A Classification of Igneous Rocks and Glossary of Terms. Recommendations of the IUGS Commission on the Systematics of Igneous Rocks. Oxford: Blackwell. 193p.
[38] Maniar P. D., Piccoli P. M., 1989. Tectonic Discrimination of Granitoids. The Geological Society of America, 101, 635-643. https://doi.org/10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2.
[39] Harker, 1909. The natural history of igneous rocks. Methuen, London.
[40] Mc Donough W. F., Sun S. S. 1995. The composition of the Earth. Chemical Geology, 120, 223-253. https://doi.org/10.1016/0009-2541(94)00140-4.
[41] Miyashiro, A. (1978) Nature of Alkalic Volcanic Rock Series. Contributions to Mineralogy and Petrology, 66, 91-104. https://doi.org/10.1007/BF00376089.
[42] Irvine T. N., Barragar W. R. A., 1971. A guide to the chemical classification of the common volcanic rocks. Canadian Journal of Earth Sciences, 8, 523-548. https://doi.org/10.1139/e71-055.
[43] Frost B. R., Barnes C. G., Collins W. J., Arculus R. J., Ellis D. J., Frost C. D., 2001. A geochemical classification for granitic rocks. Journal of Petrology, 42, 2033-2048. https://doi.org/10.1093/petrology/42.11.2033.
[44] Pearce J. A., Harris N. B. W., Tindle A. G., 1984. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal of Petrology, 25, 956-983. https://doi.org/10.1093/petrology/25.4.956.
[45] Harris N. B. W., Pearce J. A., Tindle A. G., 1986. Geochimical characteristics of collision-zone magmatism. In: Coward M. P. and Reis A. C. (eds), Collision tectonics, Geological Society London, Special Publications, 19, 67-81. https://doi.org/10.1144/GSL.SP.1986.019.01.04.
[46] Clemens J. D., Wall V. J., 1981. Origin and crystallization of some peraluminous (S-type) granitic magmas. Canadian Mineralogist, 19, 111-131.
[47] Liankun S., Kuirong Y., 1989. A two-stage crust-mantel interaction model for mafic microgranular enclaves in the Daning granodiorite pluton, Guangxi, China. In Didier J. and Barbarin B (Eds), Enclaves and granite petrology, Developments in Petrology, 13, Elsevier, 95-110.
[48] Zorpi M. J., Coulon C., Orsini J. B., Cocirta C., 1989. Magma mingling, zoning and emplacement in calc-alkaline granitoid plutons. Tectonophysics, 157, 315-329. https://doi.org/10.1016/0040-1951(89)90147-9.
[49] Haïmeur J., Iz-Eddine E. A. E. H., Chabane A., 2004. Pétrologie et géochimie des granitoïdes calco-alcalins de Zaër (Maroc central) : modèle pétrogénétique. Bulletin de l’Institut Scientifique, Rabat, section Sciences de la Terre, n°26, 27-48.
[50] Orsini J. B., Cocirta C., Zorpi M. J., 1991. Genesis of mafic microgrenular enclaves trough differentiation of basic magmas, mingling and chemical exchanges with their host granitoïd magma. In Didier J. and Babarin B. (Eds) Enclaves and granite petrology, Developments in Petrology, 13, Elsevier, 445-463.
[51] Rollingson H. R., 1993. Using geochemical data: evaluation, presentation, interpretation. Pearson Education Limited, Essex. 352 p.
[52] Zhu D., Mo X., Wang L., Zhao Z., Niu Y., Zhou C., Yang Y., 2009. Petrogenesis of highly fractionated I-type granites in the Zayu area of eastern Gangdese, Tibet: Constraints from zircon U-Pb geochronology, geochemistry and Sr-Nd-Hf isotopes. Science in China, Series D: Earth Sciences, 52(9), 1223-1239. https://doi.org/10.1007/s11430-009-0132-x.
[53] Davidson J. P., McMillan N. J., Moorbath S., Worner G., Harmon R. S., Lopez-Escobar L., 1990. The Nevados de Payachata volcanic region (18°S/69°W, N) II. Evidence for widespread crustal involvement in Andean magmatism. Contributions to Mineralogy and Petrology, 105, 412-432. https://doi.org/10.1007/BF00286829.
[54] Nomo N. E., Tchameni. R.., Vanderhaeghe O., Barbey P., Fosso Tchunte P. M., Wambo Takodjou J. D., Lemdjou B. Y., Saha Fouotsa A. N., 2015. Petrography and Geochemistry of the Mbip Granitic Massif, SW Tcholliré (Central North Cameroon): Petrogenetic and Geodynamic Implication. International Journal of Geosciences, 6, 761-775. https://doi.org/10.4236/ijg.2015.67062.
[55] Peycru P., Dupin J. M., Fogelgesang J. F., Van D. R. C., Cariou F., Perrier C., Augère B., 2008. Géologie, Tout-En-Un. BCPST. Dunod, Paris, 641 p.
[56] Heinhorst J., Lehmann B., Seltmann S., 1996. New geochemical data on granitic rocks of central Kazakhstan. In Granite-related ore deposits of central Kazakhstan and adjacent areas (eds. V. Shatov, R. Seltmann, A. Kremenetsky, B. Lehmann, V. Popov, and P. Ermolov). Glagol Publishing House, St. Petersburg.
[57] Zoheir B. A., Mehanna A. M., Qaoud N. N., 2008. Geochemistry and geothermobarometry of the Um Eleiga Neoproterozoic island arc intrusive complex, SE Egypt: genesis of a potential gold-hosting intrusion. Applied Earth Sciences: IMM Transactions section B, 117(3), 89-111. https://doi.org/10.1179/174327508X375620.
[58] Taylor S. R., McLennan S. M., 1985. The continental cust: its composition and evolution. Blackwell, 312p.
[59] Rudnick R. L., Fountain D. M., 1995. Nature and composition of the Continental-Crust a Lower Crust perspective. Revue of Geophysics, 33(3), 267-309. https://doi.org/10.1029/95RG01302.
[60] Bouyo M. H., Zhao Y., Penaye J., Zhang S. H., Njel, U. O., 2015. 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 Research, 21, 40-53. https://doi.org/10.1016/j.precamres.2015.01.012.
[61] Liégeois J. P., Black R., Navez J., Latouche L., 1994. Early and late Pan-African orogenies in the Aïr assembly of terrane (Tuareg shield, Niger). Precambrian Research, 67, 59-88. https://doi.org/10.1016/0301-9268(94)90005-1.
[62] Barbarin B., 1999. A review of the relationships between granitoïd types, their origins and their geodynamic environnments. Lithos, 46, 605-626. https://doi.org/10.1016/S0024-4937(98)00085-1.
[63] Ganwa A. A., Klötzli U. S., Hauzenberger C., 2016. Evidence for Archean inheritance in the pre-Panafrican crust of Central Cameroon: Insight from zircon internal structure and LA-MCICP-MS U-Pb ages. Journal of African Earth Sciences, 120, 12-22. https://doi.org/10.1016/j.jafrearsci.2016.04.013.
[64] Pouclet A., Vidal M., Doumnang J. C., Vicat J. P., Tchameni R., 2006. 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, 44, 543–560. https://doi.org/10.1016/j.jafrearsci.2005.11.019.
-
Downloads
-
How to Cite
Diguim Kepnamou, A., Seguem, N., Mama, N., Adama Adama Dairou, A., Bienvenu, B., Kalaza Josue, H., Wangmene Salomon 5, Ngounouno Ismaila, A., & Ismaila, N. (2022). Petrographic and geochemical study of Doua granitoids (adamawa-yade domain, center Cameroon): Petrogenesis and geodynamic implication. International Journal of Advanced Geosciences, 9(2), 99-109. https://doi.org/10.14419/ijag.v9i2.31702Received date: 2021-07-15
Accepted date: 2021-08-11
Published date: 2022-01-02