REE partitioning between apatite and melt in a peralkaline volcanic suite, Kenya Rift Valley

Mineralogical Magazine

Volumn 72, Issue 6, 2009, Pages 1147-1161

  Macdonald, R ^a,b   Baginski B ^a   Belkin, H E ^c   Dzierzanowski, P ^a   Jezak, L ^a  

^a UNIVERSITY OF WARSAW   (Poland)

^b LANCASTER UNIVERSITY   (United Kingdom)

^c U S GEOLOGICAL SURVEY   (United States)

Author keywords

Britholite; Fluorapatite; Magma mixing; Peralkaline rhyolites; Trachytes

Indexed keywords

BRITHOLITE; FLUORAPATITE; MAGMA MIXING; PERALKALINE RHYOLITES; TRACHYTES;

APATITE; CALCIUM; CRYSTALLIZATION; ELECTRON PROBE MICROANALYSIS; PARAFFIN WAXES; PHOSPHATE MINERALS; SILICATE MINERALS; SODIUM; VOLCANOES; YTTERBIUM; ZIRCON;

GRANITE;

BRITHOLITE; CRYSTALLIZATION; FLUORAPATITE; PARTITIONING; PERALKALINE ROCK; RARE EARTH ELEMENT; RHYOLITE; TRACHYTE; ZONING;

AFRICA; EAST AFRICA; EAST AFRICAN RIFT; KENYA; KENYA RIFT; SUB-SAHARAN AFRICA;

TRACHYTES;

EID: 69249217923     PISSN: 0026461X     EISSN: None     Source Type: Journal    
DOI: 10.1180/minmag.2008.072.6.1147     Document Type: Article

References (30)

1. Andersen, D.J., Lindsley, D.H. and Davidson, P.M. (1993) QUILF: a Pascal program to assess equilibria among Fe-Mg-Ti oxides, pyroxenes, olivine and quartz. Computers & Geosciences, 19, 1333-1350.
2. Armstrong, J.T. (1995) CITZAF: A package of correction programs for the quantitative electron microbeam X-ray analysis of thick polished materials, thin films, and particles. Microbeam Analysis, 4, 177-200.
3. Boyce, J.W. and Hervig, R.L. (2009) Apatite as a monitor of late-stage magmatic processes at Volcán Irazú, Costa Rica. Contributions to Mineralogy and Petrology, 157, 135-145.
4. Buhn, B., Wall, F. and Le Bas, M.J. (2001) Rare-earth element systematics of carbonatitic fluorapatites, and their significance for carbonate magma evolution. Contributions to Mineralogy and Petrology, 141, 572-591.
5. Cherniak, D.J. (2000) Rare earth element diffusion in apatite. Geochimica et Cosmochimica Acta, 64, 3871-3885.
6. Clarke, M.C., Woodhall, D.G., Allen, D. and Darling, G. (1990) Geological, volcanological and hydrogeological controls on the occurrence of geothermal activity in the area surrounding Lake Naivasha, Kenya. Ministry of Energy Report, Nairobi, Kenya, 138 pp.
7. Comodi, P., Liu, Y., Stoppa, F. and Woolley, A.R. (1999) A multi-method analysis of Si-, S- and REE- rich apatite from a new find of kalsilite-bearing leucitite (Abruzzi, Italy). Mineralogical Magazine, 63, 661-672.
8. Exley, R.A. (1980) Microprobe studies of REE-rich accessory minerals: implications for Skye granite petrogenesis and REE mobility in hydrothermal systems. Earth and Planetary Science Letters, 48, 97-110.
9. Fransolet, A.-M. and Schreyer, W. (1981) Unusual, iron-bearing apatite from a garnetiferous pegmatoid, Northampton Block, Western Australia. Neues Jahrbuch fur Mineralogie Monatshefte, 317-327.
10. Heumann, A. and Davies, G.R. (2002) U-Th disequilibrium and Rb-Sr age constraints on the magmatic evolution of peralkaline rhyolites from Kenya. Journal of Petrology, 43, 557-577.
11. Hughes, J.M., Cameron, M. and Mariano, A.N. (1991) Rare-earth-element ordering and structural variations in natural rare-earth-bearing apatites. American Mineralogist, 76, 1165-1173.
12. Macdonald, R. and Bailey, D.K. (1973) The chemistry of the peralkaline oversaturated obsidians. U.S. Geological Survey Professional Paper, 440-N-1, N1-N37.
13. Macdonald, R., Davies, G.R., Bliss, C.M., Leat, P.T., Bailey, D.K. and Smith, R.L. (1987) Geochemistry of high-silica rhyolites, Naivasha, Kenya rift valley. Journal of Petrology, 28, 979-1008.
14. Macdonald, R., Belkin, H.E., Fitton, J.G., Rogers, N.W., Nejbert, K., Tindle, A.G. and Marshall, A.S. (2008) The roles of fractional crystallization, magma mixing, crystal mush remobilization and volatile-melt interactions in the genesis of a young basalt peralkaline rhyolite suite, the Greater Olkaria Volcanic Complex, Kenya Rift Valley. Journal of Petrology, 49, 1515-1547.
15. Mahood, G.A. and Hildreth, W. (1983) Large partition coefficients for trace elements in high-silica rhyolites. Geochimica et Cosmochimica Acta, 47, 11-30.
16. Mahood, G.A. and Stimac, J.A. (1990) Trace-element partitioning in pantellerites and trachytes. Geochimica et Cosmochimica Acta, 54, 2257-2276.
17. Mandarino, J.A. (1999) Fleischer's Glossary of Mineral Species. The Mineralogical Record Inc. Tucson, Arizona, USA, 225 pp.
18. Marshall, A.S., Macdonald, R., Rogers, N.W., Fitton, J.G., Tindle, A.G., Nejbert, K. and Hinton, R.W. (2009) Extreme fractionation of peralkaline silicic magmas:the Greater Olkaria Volcanic Complex, Kenya Rift Valley. Journal of Petrology, 50, 323-359.
19. Oberti, R., Ottolini, L., Della Ventura, G. and Parodi, G.C. (2001) On the symmetry and crystal chemistry of britholite: New structural and microanalytical data. American Mineralogist, 86, 1066-1075.
20. Pan, Y. and Fleet, M.E. (2002) Compositions of the apatite-group minerals: substitution mechanisms and controlling factors. Pp. 13-49 in: Phosphates: Geochemical, Geobiological, and Materials Importance (M.J. Kohn, J. Rakovan and J.M. Hughes, editors). Reviews in Mineralogy and Geochemistry 48, Mineralogical Society of America, Chantilly, Virginia, USA.
21. Piccoli, P.M. and Candela, P.A. (2002) Apatite in igneous systems. Pp. 255-292 in: Phosphates: Geochemical, Geobiological, and Materials Importance (M.J. Kohn, J. Rakovan and J.M. Hughes, editors). Reviews in Mineralogy and Geochemistry, 48, Mineralogical Society of America, Chantilly, Virginia, USA.
22. Roeder, P.L., McArthur, D., Ma, X.P. and Palmer, G.R. (1987) Cathodoluminescence and microprobe study of rare-earth elements in apatite. American Mineralogist, 72, 801-811.
23. Rønsbo, J.G. (1989) Coupled substitutions involving REEs and Na and Si in apatites from alkaline rocks from the Ilímaussaq intrusion, South Greenland, and the petrological implications. American Mineralogist, 74, 896-901.
24. Rønsbo, J.G. (2008) Apatite in the Ilímaussaq alkaline complex: Occurrence, zonation and compositional variation. Lithos, 106, 71-82.
25. Scaillet, B. and Macdonald, R. (2001) Phase relations of peralkaline silicic magmas and petrogenetic implications. Journal of Petrology, 42, 825-845.
26. Scaillet, B. and Macdonald, R. (2003) Experimental constraints on the relationships between peralkaline rhyolites of the Kenya Rift Valley. Journal of Petrology, 44, 1867-1894.
27. Sha, L.-K. and Chappell, B.W. (1999) Apatite chemical composition, determined by electron microprobe and laser-ablation inductively coupled plasma mass spectrometry, as a probe into granite petrogenesis. Geochimica et Cosmochimica Acta, 63, 3861-3881.
28. Sun, S.-S. and McDonough, W.F. (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Pp. 313-345 in: Magmatism in the Ocean Basins (A.D. Saunders and M.J. Norry, editors). Geological Society, London, Special Publication, 42.
29. Tepper, J.H. and Kuehner, S.M. (1999) Complex zoning in apatite from the Idaho batholith: A record of magma mixing and intracrystalline trace element diffusion. American Mineralogist, 84, 581-595.
30. Wilding, M.C., Macdonald, R., Davies, J.E. and Fallick, A.E. (1993) Volatile characteristics of peralkaline rhyolites from Kenya: an ion microprobe, infrared spectroscopic and hydrogen isotope study. Contributions to Mineralogy and Petrology, 144, 264-275.