The role of continental crust and lithospheric mantle in the genesis of Cameroon Volcanic Line lavas: Constraints from isotopic variations in lavas and megacrysts from the Biu and Jos Plateaux

Journal of Petrology

Volumn 46, Issue 1, 2005, Pages 169-190

  Rankenburg, K ^a,b   Lassiter, J C ^a   Brey, G ^b  

^a MAX PLANCK INSTITUTE FOR CHEMISTRY   (Germany)

^b Inst Fuer Mineralogie   (Germany)

Author keywords

Crustal contamination; CVL; Megacrysts; Ocean floor; Osmium isotopes

Indexed keywords

CONTINENTAL BREAKUP; CRUSTAL CONTAMINATION; ISOTOPIC COMPOSITION; LAVA; MAGMA CHEMISTRY; MEGACRYST; MESOZOIC; OSMIUM ISOTOPE;

AFRICA; CAMEROON; EASTERN HEMISPHERE; SUB-SAHARAN AFRICA; WEST AFRICA; WORLD;

EID: 12444269016     PISSN: 00223530     EISSN: None     Source Type: Journal    
DOI: 10.1093/petrology/egh067     Document Type: Article

References (89)

1. Abouchami, W., Galer, S. J. G. & Hofmann, A. W. (2000). High precision lead isotope systematics of lavas from the Hawaiian Scientific Drilling Project. Chemical Geology 169(1-2), 187-209.
2. Alves, S., Schiano, P. & Allègre, C. J. (1999). Rhenium-osmium isotopic investigation of Java subduction zone lavas. Earth and Planetary Science Letters 168(1-2), 65-77.
3. Ballentine, C.J., Lee, D. C. & Halliday, A. N. (1997). Hafnium isotopic studies of the Cameroon line and new HIMU paradoxes. Chemical Geology 139(1-4), 111-124.
4. Barfod, D. N., Ballentine, C. J., Halliday, A. N. & Fitton, J. G. (1999). Noble gases in the Cameroon line and the He, Ne, and Ar isotopic compositions of high μ (HIMU) mantle. Journal of Geophysical Research-Solid Earth 104(B12), 29509-29527.
5. Belyatsky, B. V., Levsky, L. K., Trukhalev, A. L, Pogrebitsky, Y. E., Vasil'eva, I. M. & Kurentsova, N. A.(1997). Precambrian granite-gneiss from the Mid-Atlantic Ridge (26°N): a U-Pb and Sm-Nd isotopic study. Geochemistry International 35(8), 770-773.
6. Bennett, V. C., Norman, M. D. & Garcia, M. O. (2000). Rhenium and platinum group element abundances correlated with mantle source components in Hawaiian picrites: sulphides in the plume. Earth and Planetary Science Letters 183(3-4), 513-526.
7. Birck, J. L., Roy-Barman, M. & Capmas, F. (1997). Re-Os isotopic measurements at the femtomole level in natural samples. Geostandards Newsletter 21(1), 19-27.
8. Bohrson, W. A. & Spera, F. J. (2001). Energy-constrained open-system magmatic processes II: Application of energy-constrained assimilation-fractional crystallization (EC-AFC) model to magmatic systems. Journal of Petrology 42(5), 1019-1041.
9. Bonatti, E., Ligi, M., Borsetti, A. M., Gasperini, L., Negri, A. & Sartori, R. (1996). Lower Cretaceous deposits trapped near the equatorial Mid-Atlantic Ridge. Nature 380(6574), 518-520.
10. Borisova, A. Y., Belyatsky, B. V., Portnyagin, M. V. & Sushchevskaya, N. M. (2001). Petrogenesis of olivine-phyric basalts from the Aphanasey Nikitin Rise: evidence for contamination by cratonic lower continental crust. Journal of Petrology 42(2), 277-319.
11. Brügman, G. E., Yang,J. H., Snow,J. E., Rehkämper, M. & Mezger, K. (1999). Gemeinsame Bestimmung der Os-Isotopie und der Edelmetallkonzentrationen in Peridotiten, Basalten, Sulfiden und Eisenmeteoriten. Kolloquium des DFG-Schwerpunktprogramms 'Ocean Drilling Program and Deep Sea Drilling Project, Togungsprogramm und Abstracts 21-22.
12. Bultitude, R. J. & Green, D. H. (1971). Experimental study of crystal-liquid relationships at high pressures in olivine nephelinite and basanite compositions. Journal of Petrology 12(1), 121-147.
13. Cherniak, D. J. (2001). Pb diffusion in Cr diopside, augite, and enstatite, and consideration of the dependence of cation diffusion in pyroxene on oxygen fugacity. Chemical Geology 177(3-4), 381-397.
14. Coulon, C., Vidal, P., Dupuy, C., Baudin, P., Popoff, M., Maluski, H. & Hermitte, D. (1996). The Mesozoic to Early Cenozoic magmatism of the Benue Trough (Nigeria): geochemical evidence for the involvement of the St Helena plume. Journal of Petrology 37(6), 1341-1358.
15. Dada, S. S. (1998). Crust-forming ages and Proterozoic crustal evolution in Nigeria: a reappraisal of current interpretations. Precambrian Research 87(1-2), 65-74.
16. Dada, S. S., Briqueu, L., Harms, U., Lancelot, J. R. & Matheis, G. (1995). Charnockitic and monzonitic Pan-African Series from north-central Nigeria: trace-element and Nd, Sr, Pb isotope constraints on their petrogenesis. Chemical Geology 124(3-4), 233-252.
17. Davies, G. R., Spriggs, A. J. & Nixon, P. H. (2001). A non-cognate origin for the Gibeon kimberlite megacryst suite, Namibia: implications for the origin of Namibian kimberlites. Journal of Petrology 42 1), 159-172.
18. DePaolo, D. J. (1981). Trace element and isotopic effects of combined wallrock assimilation and fractional crystallization. Earth and Planetary Science Letters 53, 189-202.
19. Dickin, A. P., Halliday, A. N. & Bowden, P. (1991). A Pb, Sr and Nd isotope study of the basement and Mesozoic ring complexes of the Jos Plateau, Nigeria. Chemical Geology 94(1), 23-32.
20. Douglass, J. & Schilling, J. G. (2000). Systematics of three-component, pseudo-binary mixing lines in 2D isotope ratio space representations and implications for mantle plume-ridge interaction. Chemical Geology 163(1-4), 1-23.
21. Douglass, J., Schilling, J. G. & Fontignie, D. (1999). Plume-ridge interactions of the Discovery and Shona mantle plumes with the southern mid-Atlantic ridge (40 degrees-55 degrees S). Journal of Geophysical Research-Solid Earth 104(B2), 2941-2962.
22. Esperanca, S., Carlson, R. W., Shirey, S. B. & Smith, D. (1997). Dating crust mantle separation: Re-Os isotopic study of mafic xenoliths from central Arizona. Geology 25(7), 651-654.
23. Esser, B. K. & Turekian, K. K. (1993). The osmium isotopic composition of the continental crust. Geochimica et Cosmochimica Acta 57 13), 3093-3104.
24. Fitton, J. G. (1980). The Benue trough and Cameroon Line-a migrating rift system in West Africa. Earth and Planetary Science Letters 51(1), 132-138.
25. Fitton, J. G. & Dunlop, H. M. (1985). The Cameroon Line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt. Earth and Planetary Science Letters 72(1), 23-38.
26. Frey, F. A., Weis, D., Borisova, A. Y. & Xu, G. (2002). Involvement of continental crust in the formation of the Cretaceous Kerguelen Plateau: new perspectives from ODP Leg 120 sites. Journal of Petrology 43(7), 1207-1239.
27. Frisch, T. & Wright, J. B. (1971). Chemical composition of high-pressure megacrysts from Nigerian Cenozoic lavas. Neues Jahrbuch für Mineralogie, Monatshefte 7, 289-304.
28. Gannoun, A., Burton, K. W., Barfod, D. N. & Halliday, A. (2001). Osmium-isotope variations in Cameroon Line basalts: HIMU mantle versus crustal contamination. EOS Transactions, American Geophysical Union, Fall Meeting Suplement 82(47), Abstract V21D-07.
29. Ghiorso, M. S., Hirschmann, M. M., Reiners, P. W. & Kress, V. C. (2002). The pMELTS: a revision of MELTS for improved calculation of phase relations and major element partitioning related to partial melting of the mantle to 3 GPa. Geochemistry, Geophysics, Geosystems 3, article number 1030.
30. Grant, N. K., Rex, D. C. & Freeth, S.J. (1972). Potassium-argon ages and strontium isotope ratio measurements from volcanic rocks in northeastern Nigeria. Contributions to Mineralogy and Petrology 35(4), 277-292.
31. Green, D. H. & Ringwood, A. E. (1967). The genesis of basaltic magmas. Contributions to Mineralogy and Petrology 15, 103-190.
32. Halliday, A. N., Dickin, A. P., Fallick, A. E. & Fitton, J. G. (1988 . Mantle dynamics-a Nd, Sr, Pb and O isotopic study of the Cameroon Line volcanic chain. Journal of Petrology 29(1), 181-211.
33. Halliday, A. N., Davidson, J. P., Holden, P., Dewolf, C., Lee, D. C. & Fitton, J. G. (1990). Trace-element fractionation in plumes and the origin of HIMU mantle beneath the Cameroon Line. Nature 347 6293), 523-528.
34. Halliday, A. N., Lee, D. C., Tommasini, S., Davies, G. R., Paslick, C. R., Fitton, J. G. & James, D. E. (1995). Incompatible trace-elements in OIB and MORB and source enrichment in the sub-oceanic mantle. Earth and Planetary Science Letters 133(3-4), 379-395.
35. Hart, S. R. (1984). A large-scale isotope anomaly in the Southern-Hemisphere mantle. Nature 309(5971), 753-757.
36. Hauri, E. H. (2002). Osmium isotopes and mantle convection. Philosophical Transactions of the Royal Society of London, Series A 360(1800), 2371-2382.
37. Hauri, E. H. & Hart, S. R. (1993). Re-Os isotope systematics of HIMU and EM-2 oceanic island basalts from the South Pacific Ocean. Earth and Planetary Science Letters 114(2-3), 353-371.
38. Hawkesworth, C. J., Rogers, N. W., Van Calsteren, P. W. C. & Menzies, M. A. (1984). Mantle enrichment processes. Nature 311(5984), 331-335.
39. Ingle, S., Weis, D. & Frey, F. A. (2002). Indian continental crust recovered from Elan Bank, Kerguelen Plateau (ODP Leg 183, Site 1137). Journal of Petrology 43(7), 1241-1257.
40. Ingle, S., Weis, D., Doucet, S. & Mattielli, N. (2003). Hf isotope constraints on mantle sources and shallow-level contaminants during Kerguelen hot spot activity since ∼120 Ma. Geochemistry, Geophysics, Geosystems 4(8), 1068.
41. Irving, A. J. (1974). Megacrysts from Newer Basalts and other basaltic rocks of southeastern Australia. Geological Society of America Bulletin 85(10), 1503-1514.
42. Irving, A. J. & Frey, F. A. (1984). Trace-element abundances in megacrysts and their host basalts-constraints on partition coefficients and megacryst genesis. Geochimica et Cosmochimica Acta 48 6), 1201-1221.
43. Jenner, G. A., Longerich, H. P., Jackson, S. E. & Fryer, B. J. (1990 . ICP-MS: a powerful tool for high-precision trace-element analysis in earth sciences-evidence from analysis of selected USGS reference samples. Chemical Geology 83(1-2), 133-148.
44. Kogiso, T., Hirschmann, M. M. & Reiners, P. W. (2004). Length scales of mantle heterogeneities and their relationship to ocean island basalt geochemistry. Geochimica et Cosmochimica Acta 68(2), 345-360.
45. Kröner, A., Ekwueme, B. N. & Pidgeon, R. T. (2001). The oldest rocks in West Africa: SHRIMP zircon age for Early Archean migmatitic orthogneiss at Kaduna, northern Nigeria. Journal of Geology 109 3), 399-406.
46. Lassiter, J. C. (2003). Rhenium volatility in subaerial lavas: constraints from subaerial and submarine portions of the HSDP-2 Mauna Kea drillcore. Earth and Planetary Science Letters 214(1-2 , 311-325.
47. Lassiter, J. C., Hauri, E. H., Reiners, P. W. & Garcia, M. O. (2000). Generation of Hawaiian post-erosional lavas by melting of a mixed lherzolite/pyroxenite source. Earth and Planetary Science Letters 178(3-4), 269-284.
48. Lee, D. C., Halliday, A. N., Fitton, J. G. & Poli, G. (1994). Isotopic variations with distance and time in the volcanic islands of the Cameroon Line-evidence for a mantle plume origin. Earth and Planetary Science Letters 123(1-4), 119-138.
49. Lee, D. C., Halliday, A. N., Davies, G. R., Essene, E.J., Fitton. J. G. & Temdjim, R. (1996). Melt enrichment of shallow depleted mantle: a detailed petrological, trace element and isotopic study of mantle-derived xenoliths and megacrysts from the Cameroon line. Journal of Petrology 37(2), 415-441.
50. Liu, C. Q, Masuda, A. & Xie, G. H. (1992). Isotope and trace-element geochemistry of alkali basalts and associated megacrysts from the Huangyishan Volcano, Kuandian, Liaoning, NE China. Chemical Geology 97(3-4), 219-231.
51. 187Os systematics in meteorites and cosmochemical consequences. Nature 302(5904), 130-132.
52. 39Ar dates, petrology, Sr-Nd-O isotopes and their petrogenetic significance. Contributions to Mineralogy and Petrology 135 2-3), 133-150.
53. Marzoli, A., Piccirillo, E. M., Renne, P. R., Bellieni, G., Iacumin, M., Nyobe, J. B. & Tongwa, A. T. (2000). The Cameroon Volcanic Line revisited: petrogenesis of continental basaltic magmas from lithospheric and asthenospheric mantle sources. Journal of Petrology 41 1), 87-109.
54. McDonough, W. F. & Sun, S. S. (1995). The composition of the Earth. Chemical Geology 120(3-4), 223-253.
55. McLeod, W. N., Turner, D. C. & Wright, E. P. (1971). The geology of the Jos Plateau. Bulletin of the Geological Survey of Nigeria 32 1), 17-23.
56. Morgan, J. W. & Walker, R. J. (1989). Isotopic determinations of rhenium and osmium in meteorites by using fusion, distillation and ion-exchange separations. Analytica Chimica Acta 222(2), 291-300.
57. Ngounouno, I., Deruelle, B., Demaiffe, D. & Montigny, R. (1997). New data on the Cenozoic volcanism of the Garoua valley (Upper Benue trough, northern Cameroon). Comptes Rendus de l'Académie des Sciences, Série II 325(2), 87-94.
58. Pearson, D. G. & Nowell, G. M. (2004). Re-Os and Lu-Hf isotope constraints on the origin and age of pyroxenites from the Beni Bousera peridotite massif; implications for mixed peridotite pyroxenite mantle sources. Journal of Petrology 45(2), 439-455.
59. Peucker-Ehrenbrink, B. & Jahn, B.-M. (2001). Rhenium-osmium isotope systematics and platinum group element concentrations: loess and the upper continental crust. Geochemistry, Geophysics, Geosystems 2 U33-U59.
60. Pilot, J., Werner, C. D., Haubrich, F. & Baumann, N. (1998). Palaeozoic and Proterozoic zircons from the Mid-Atlantic Ridge. Nature 393 6686), 676-679.
61. Poudjom-Djomani, Y. H., Nnange, J. M., Diament, M., Ebinger, C.J. & Fairhead, J. D. (1995). Effective elastic thickness and crustal thickness variations in west central Africa inferred from gravity data. Journal of Geophysical Research-Solid Earth 100(B11), 22047-22070.
62. Putirka, K., Johnson, M., Kinzler, R., Longhi, J. & Walker, D. (1996 . Thermobarometry of mafic igneous rocks based on clinopyroxene-liquid equilibria, 0-30 kbar. Contributions to Mineralogy and Petrology 123(1), 92-108.
63. Rankenburg, K., Lassiter, J. C. & Brey, G. (2004). Origin of megacrysts in volcanic rocks of the Cameroon volcanic chain-constraints on magma genesis and crustal contamination. Contributions to Mineralogy and Petrology 147(2), 129-144.
64. Reisberg, L., Allègre, C. J. & Luck, J. M. (1991). The Re-Os systematics of the Ronda ultramafic complex of southern Spain. Earth and Planetary Science Letters 105, 196-213.
65. Righter, K. & Carmichael, I. S. E. (1993). Mega-xenocrysts in alkali olivine basalts-fragments of disrupted mantle assemblages. American Mineralogist 78(11-12), 1230-1245.
66. Righter, K. & Hauri, E. H. (1998). Compatibility of rhenium in garnet during mantle melting and magma genesis. Science 280(5370), 1737-1741.
67. Ringwood, A. E. (1982). Phase-transformations and differentiation in subducted lithosphere-implications for mantle dynamics, basalt petrogenesis, and crustal evolution. Journal of Geology 90 6), 611-643.
68. Roy-Barman, M., Luck, J. M. & Allègre, C. J. (1996). Os isotopes in orogenic lherzolite massifs and mantle heterogeneities. Chemical Geology 130, 55-64.
69. Roy-Barman, M., Wasserburg, G. J., Papanastassiou, D. A. & Chaussidon, M. (1998). Osmium isotopic compositions and Re-Os concentrations in sulfide globules from basaltic glasses. Earth and Planetary Science Letters 154(1-4), 331-347.
70. Rushmer, T. (1993). Experimental high-pressure granulites-some applications to natural mafic xenolith suites and Archean granulite terranes. Geology 21(5), 411-414.
71. Saal, A. E., Rudnick, R. L., Ravizza, G. E. & Hart, S. R. (1998). Re-Os isotope evidence for the composition, formation and age of the lower continental crust. Nature 393, 58-61.
72. Salzmann, U. (2000). Are modern savannas degraded forests?-A Holocene pollen record from the Sudanian vegetation zone of NE Nigeria. Vegetation History and Archaeobotany 9(1), 1-15.
73. Schaltegger, U., Amundsen, H., Jamtveit, B., Frank, M., Griffin, W. L., Gronvold, K., Tronnes, R. & Torsvik, T. (2002). Contamination of OIB by underlying ancient continental lithosphere: U-Pb and Hf isotopes in zircons question EM1 and EM2 mantle components. Geochimica et Cosmochimica Acta 66(15A), A673.
74. Schiano, P., Birck, J. L. & Allègre, C. J. (1997). Osmium-strontium-neodymium-lead isotopic covariations in mid-ocean ridge basalt glasses and the heterogeneity of the upper mantle. Earth and Planetary Science Letters 150(3-4), 363-379.
75. Schulze, D. J., Valley, J. R., Bell, D. R. & Spicuzza, M. J. (2001). Oxygen isotope variations in Cr-poor megacrysts from kimberlite. Geochimica et Cosmochimica Acta 65(23), 4375-4384.
76. Shirey, S. B. & Walker, R. J. (1998). The Re Os isotope system in cosmochemistry and high-temperature geochemistry. Annual Review of Earth and Planetary Sciences 26, 423-500.
77. Spera, F. J. & Bohrson, W. A. (2001). Energy-constrained open-system magmatic processes I: General model and energy-constrained assimilation and fractional crystallization (EC-AFC) formulation. Journal of Petrology, 42(5), 999-1018.
78. Stein, M. & Hofmann, A. W. (1992). Fossil plume head beneath the Arabian lithosphere. Earth and Planetary Science Letters 114(1), 193-209.
79. Sun, S. S. & McDonough, W. F. (1989). Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders, A. D. & Norry, M.J. (eds) Magmatism in the Ocean Basins. Geological Society, London, Special Publications 42, 313-345.
80. Taylor, S. R. & McLennan, S. M. (1995). The geochemical evolution of the continental crust. Reviews of Geophysics 33(2), 241-265.
81. Thirlwall, M. F. (1997). Pb isotopic and elemental evidence for OIB derivation from young HIMU mantle. Chemical Geology 139 1-4), 51-74.
82. Turner, D. C. (1978). Volcanoes of the Biu Basalt Plateau, northeastern Nigeria. Journal of Mining and Geology 15(2), 49-63.
83. Van Breemen, O., Pidgeon, R. T. & Bowden, P. (1977). Age and isotopic studies of some Pan-African granites from north-central Nigeria. Precambrian Research 4, 307-319.
84. Walker, R. J., Carlson, R. W., Shirey, S. B. & Boyd, F. R. (1989). Os, Sr, Nd, and Pb isotope systematics of Southern African peridotite xenoliths-implications for the chemical evolution of subcontinental mantle. Geochimica et Cosmochimica Acta 53(7), 1583-1595.
85. Weaver, B. L. (1991). The origin of ocean island basalt end-member compositions-trace-element and isotopic constraints. Earth and Planetary Science Letters 104(2-4), 381-397.
86. Wright, J. B. (1970). High pressure phases in Nigerian Cenozoic lavas: distribution and tectonic setting. Bulletin of Volcanology 34 833-847.
87. Wright, J. B. (1976). Volcanic rocks in Nigeria. In: Kogbe, C. A. (ed.) Geology of Negeria. Lagos: Elizabethan Publishing Co., pp. 125-173.
88. Yokoyama, T., Makishima, A. & Nakamura, E. (1999). Evaluation of the coprecipitation of incompatible trace elements with fluoride during silicate rock dissolution by acid digestion. Chemical Geology 157(3-4), 175-187.
89. Zuleger, E. & Erzinger, J. (1988). Determination of the REE and Y in silicate materials with ICP-AES. Fresenius Zeitschrift fur Analytische Chemie 332(2), 140-143.