Origin of rare earth element variations in clinopyroxene from plutonic and associated volcanic rocks from the Fouldé basin, northern Kédougou inlier, Sénégal, West Africa

European Journal of Mineralogy

Volumn 21, Issue 5, 2009, Pages 1029-1043

  Dioh, Edmond ^a   Béziat, Didier ^b   Grégoire, Michel ^b   Debat, Pierre ^b  

^a Ifan   (Senegal)

^b OBSERVATOIRE MIDI PYRÉNÉES   (France)

Author keywords

Basalts; Clinopyroxene; Exsolution texture; In situ trace elements; Monzogabbros; Paleoproterozoic; S n gal

Indexed keywords

BASALT; CALCIUM OXIDE; COOLING; FELDSPAR; METEORITES; RARE EARTHS; TEXTURES; VOLCANOES;

CLINOPYROXENES; COMPOSITIONAL DIFFERENCE; COMPOSITIONAL SIMILARITIES; EXSOLUTION; MAJOR AND TRACE ELEMENTS; MONZOGABBROS; PALEOPROTEROZOIC; TRACE ELEMENT COMPOSITION;

TRACE ELEMENTS;

ANDESITE; BASALT; CALC ALKALINE ROCK; CLINOPYROXENE; EMPLACEMENT; EXSOLUTION; GABBRO; MAFIC ROCK; PLUTONIC ROCK; RARE EARTH ELEMENT; TRACE ELEMENT; VOLCANIC ROCK;

AFRICA; SENEGAL; SUB-SAHARAN AFRICA; WEST AFRICA;

EID: 70449356639     PISSN: 09351221     EISSN: None     Source Type: Journal    
DOI: 10.1127/0935-1221/2009/0021-1963     Document Type: Article

References (37)

1. Barnes, S. J. (1986) : The effect of trapped liquid crystallization on cumulus mineral compositions in layered intrusions. Contrib. Mineral. Petrol., 93, 524-531.
2. Bassot, J. P. (1966) : Etude géologique du Sénégal oriental et de ses confins guinéo-maliens. Mém. BRGM, 40, BRGM éd., 322 p.
3. - (1987) : Le complexe volcano-plutonique calco-alcalin de la rivière Daléma (Est Sénégal) : discussion de sa signification géodynamique dans le cadre de l'orogénie éburnéenne (Protérozoïque inférieur). J. Afr. Earth Sci, 6, 505-519.
4. Bedard, J. H. (1994) : A procedure for calculating the equilibrium distribution of trace elements among the minerals of cumulate rocks, and the concentration of trace elements in coexisting liquids. Chem. Geol, 118, 143-153.
5. Bernstein, S. (2006) : In situ fractional crystallization of a mafic pluton: microanalytical study of a Paleogene gabbronorite plug in East Greenland. Lithos, 92, 222-237.
6. Borghini, G. & Rampone, E. (2007) : Postcumulus processes in oceanic-type olivine-rich cumulate: the role of trapped melt crystallization versus melt/rock interaction. Contrib. Mineral. Petrol., 154, 619-633.
7. Cawthorn, G. R. (1996) : Models for incompatible trace element abundances in cumulus minerals and their application to plagioclase and pyroxenes in the Bushveld Complex. Contrib. Mineral. Petrol., 123, 109-115.
8. Charlier, B., Auwera, J. V., Duchesne, J. C. (2005) : Geochemistry of cumulates from the Bjerkreim Sokndal layered intrusion (S. Norway). Part II. REE and the trapped liquid fraction. Lithos, 83, 255-276.
9. Chen, J. & Xu, Z. Q. (2005) : Pargasite and ilmenite exsolution texture in clinopyroxenes from the Hujialing garnet-pyroxenite, Su-Lu UHP terrane, Central China: a geodynamic implication. Eur. J. Mineral., 17, 895-903.
10. Coogan, L. A., Kempton, P. D., Saunders, A. D., Norry, M. J. (2000) : Melt aggregation within the crust beneath the Mid-Atlantic Ridge: evidence from plagioclase and clinopyroxene major and trace element compositions. Earth Planet. Sci. Lett., 176, 245-257.
11. Coogan, L. A., Wilson, R. N., Gillis, K. M., MacLeod, C. J. (2001) : Near-solidus evolution of oceanic gabbros: insights from amphibole geochemistry. Geochim. Cosmochim. Acta, 65, 4339-4357.
12. Cortesogno, L., Gaggero, L., Zanetti, A. (2000) : Rare earth and trace elements in igneous and high-temperature metamorphic minerals of oceanic gabbros (MARK area, Mid-Atlantic Ridge). Contrib. Mineral. Petrol., 139, 373-393.
13. Debat, P., Diallo, D. P, Ngom, P. M., Rollet, M., Seyler, M. (1984) : La série de Mako dans ses parties centrale et méridionale (Sénégal Oriental, Afrique de l'Ouest). Précisions sur révolution de la série volcano-sédimentaire et données géochimiques préliminaires sur les formations magmatiques post-tectoniques. J. Afr. Earth Sci., 2, 71-19.
14. Dia, A., Van Schmus, W. R., Kröner, A. (1997) : Isotopic constraints on the age and formation of a Palaeoproterozoic volcanic arc complex in the Kedougou inlier, Eastern Senegal, West Africa. J. Afr. Earth Sci., 24, 197-213.
15. Dioh, E. (1995) : Caractérisation, signification et origine des formations birimiennes encaissantes du granite de Dioumbalou (partie septentrionale de la boutonnière de Kédougou-Sénégal oriental). Thèse, Université Cheick Anta Diop, Dakar, 445 p.
16. Dioh, E., Béziat, D., Debat, P., Grégoire, M., Ngom, P. M. (2006) : Diversity of the Palaeoproterozoic granitoids of the Kédougou inlier (eastern Sénégal) : petrographical and geochemical constraints. J. Afr. Earth Sci., 44, 351-371.
17. Francalanci, L., Davies, G. R., Lustenhouwer, W., Tommasini, S., Mason, P. R. D., Conticelli, S. (2005) : Intra-grain Sr isotope evidence for crystal recycling and multiple magma reservoirs in the recent activity of Stromboli Volcano, Southern Italy. J. Petrol., 46, 1997-2021.
18. Gao, Y., Hoefs, J., Hellebrand, E., von der Handt, A., Snow, J. E. (2007) : Trace element zoning in pyroxenes from ODP Hole 735B gabbros: diffuse exchange or synkinematic crystal fractionation? Contrib. Mineral. Petrol., 153, 429-442.
19. Gueye, M., Ngom, P. M., Diène, M., Thiam, Y., Siegesmund, S., Wemmer, K., Pawlig, S. (2008) : Intrusive rocks and tectonometamorphic evolution of the Mako Paleoproterozoic belt (Eastern Senegal, West Africa). J. Afr. Earth Sci., 50, 88-110.
20. Hirdes, W. & Davis, D. W. (2002) : U-Pb geochronology of Palaeoproterozoic rocks in the southern part of the Kédougou- Kéniéba Inlier, Senegal, West Africa: evidence for diachronous accretionary development of the Eburnean Province. Precambrian Res., 118, 83-99.
21. Kretz, R. (1983) : Symbols for rock-forming minerals. Am. Mineral., 68, 277-279.
22. Leake, B. E., Wooley, A. R., Arps, C. E. S., Birch, W. D., Gilbert, M. C., Grice, J. D., Hawthorne, F. C., Kato, A., Kisch, H. J., Krivovichev, V. G., Linthout, K., Laird, J., Mandarino, J. A., Maresch, W. V., Nickel, E. H., Rock, N. M. S., Schumacher, J. C., Smith, D. C., Stephenson, N. C. N., Ungaretti, L., Whittaker, E. J. W., Youzhi, G. (1997) : Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Eur. J. Mineral., 9, 623-651. (Pubitemid 27437101)
23. Le Bas, M. J., Le Maitre, R. W., Streckeisen, A., Zanettin, B. (1986) : A chemical classification of volcanic rocks based on the total alkali-silica diagram. J. Petrol., 27, 745-750.
24. Leterrier, J., Maury, R. C., Thonon, P., Girard, D., Marchal, M. (1982) : Clinopyroxene composition as a method of identification of the magmatic affinities of paleovolcanic series. Earth Planet. Sci. Lett., 59, 139-154.
25. Loucks, R. R. (1990) : Discrimination of ophiolitic from non ophiolitic ultramafic-mafic allochthons in orogenic belts by the Al/Ti ratio in clinopyroxene. Geology, 18, 346-349.
26. Meyer, P. S., Dick, H. J. B., Thomson, G. (1989) : Cumulates gabbro from the Southwest Indian Ridge, 54°S-7° 13'E: implication for magmatic processes at a slow spreading ridge. Contrib. Mineral. Petrol., 103, 44-63.
27. Milesi, J. P., Feybesse, J. L., Ledru, P., Dommanget, A., Ouedraogo, M. F., Marcoux, E., Prost, A. E., Vinchon, C., Sylvain, J. P., Johan, V., Tegyey, M., Calvez, J. Y., Lagny, P. (1989) : Les minéralisations aurifères de l'Afrique de l'Ouest. Leur évolution lithostructurale au Protérozoïque inférieur. Chron. Rech, Min. Fr., 497, 3-98.
28. Miyashiro, A. (1978) : Nature of alkalic volcanic rock series. Contrib. Mineral. Petrol, 66, 91-104.
29. Miyawaki, R. & Nakai, I. (1996) : Crystal chemical aspects of rare earth minerals, in " Rare earth minerals: chemistry, origin and ore deposits ", A. P. Jones, F. Wall, CT. Williams C. T., eds. Chapman & Hall, 21-40.
30. Natland, J. H. & Dick, H. J. B. (1996) : Melt migration through highlevel gabbroic cumulates of the East Pacific Rise at the Hess Deep: inferences from rock textures and mineral compositions. in " Proceedings of the ocean drilling program, scientific results ", C. Mével, K. M. Gillis, J. F. Allan, P. S. Meyer, eds. 147, 21-58.
31. Ndiaye, P. M., Dia, A., Vialette, Y., Diallo, D. P., Ngom, P. M., Sylla, M., Wade, S., Dioh, E. (1997) : Données pétrographiques, géochimiques et géochronologiques nouvelles sur les granitoïdes du Supergroupe de Dialé-Daléma (Sénégal oriental) : implications pétrogéné tiques et géodynamiques. J. Afr. Earth Sci., 25, 193-208.
32. Pawlig, S., Gueye, M., Klieschies, R., Scharz, S., Wenner, K., Siegesmund, S. (2006) : Geochemical and Sr-Nd isotopic data on Birimian formations of the Kédougou-Kéniéba Inlier (Eastern Senegal) : implications on the Paleoproterozoic evolution of the West African craton. South Afr. J. Geol, 109, 411-427.
33. Pons, J., Debat, P., Oudin, C., Valero, J. (1991) : Emplacement kinematics of a syntectonic Saraya granite (Sénégal, West Africa). Bull. Soc. Géol. Fr., 162, 1075-1082.
34. Ross, K. & Elthon, D. (1997) : Cumulus and postcumulus crystallization in the ocean crust: major-and trace-element geochemistry of leg 153 gabbroic rocks, in " Proceedings of the ocean drilling program, scientific results ", J. A. Karson, M. Cannat, D. J. Millet, D. Elthon, eds. 153, 333-350.
35. Sun, S. S. & McDonough, W. F. (1989) : Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes, in " Magmatism in ocean basins ", A. D. Saunders & M. J. Norry, eds. Geol. Soc. London, Spec. Publ, 42, 313-345.
36. Tribuzio, R., Tiepolo, M., Vannucci, R., Bottazzi, P. (1999) : Trace element distribution within the olivine-bearing gabbros from the Northern Apennine ophiolites (Italy) : evidence for post-cumulus crystallization in MOR-type gabbroic rocks. Contrib. Mineral. Petrol., 134, 123-133.
37. Yang, J. J. (2006) : Ca-rich Garnet-Clinopyroxene Rocks at Hujialin in the Su-Lu Terrane (Eastern China) : Deeply Subducted Arc Cumulates? J. Petrol., 47, 965-990.