Megacrysts and associated xenoliths: Evidence for migration of geochemically enriched melts in the upper mantle beneath Scotland

Journal of Petrology

Volumn 40, Issue 6, 1999, Pages 935-956

  Upton, B G J ^a   Hinton, R W ^a   Aspen, P ^a   Finch, A ^b   Valley, J W ^c  

^a UNIVERSITY OF EDINBURGH   (United Kingdom)

^b UNIVERSITY OF BEDFORDSHIRE   (United Kingdom)

^c UNIVERSITY OF WISCONSIN MADISON   (United States)

Author keywords

Anorthoclase; Corundum; Mantle; Megacrysts; Scotland

Indexed keywords

GEOCHEMISTRY; MANTLE CHEMISTRY; MEGACRYST; MELT; ORTHOCLASE; XENOLITH;

SCOTLAND; UNITED KINGDOM;

EID: 0032825976     PISSN: 00223530     EISSN: None     Source Type: Journal    
DOI: 10.1093/petroj/40.6.935     Document Type: Article

References (69)

1. Anders, E. & Grevesse, N. (1989). Abundances of the elements: meteoritic and solar. Geochimica et Cosmochimica Acta 53, 197-214.
2. Aspen, P., Upton, B. G. J. & Dickin, A. P. (1990). Anorthoclase, sanidine and associated megacrysts in Scottish alkali basalts: high-pressure syenitic debris from upper mantle sources? European Journal of Mineralogy 2, 503-517.
3. Baker, J., Chazot, G., Menzies, M. & Thirlwall, M. (1998). Metasomatism of the shallow mantle beneath Yemen by the Afar plume - implications for mantle plumes, Hood volcanism, and intraplate volcanism. Geology 26, 431-434.
4. Barlow, A. E. (1915). Corundum, its occurrence, distribution, exploitation and uses. Canada Department of Mines, Geological Survey Memoir 57, 377.
5. Barron, B. J., Robertson, A. D. & Sutherland, F. L. (1996). Olivine 'leucitites', their xenolith and megacryst suites, Hoskings Peaks, north Queensland. Australian Journal of Earth Sciences 43, 231-244.
6. Barton, M., Varekamp, J. C. & Van Bergen, M. J. (1982). Complex zoning of clinopyroxenes in the lavas of Vulsini, Latinum: evidence of magma mixing. Journal of Volcanology and Geothermal Research 14, 361-388.
7. Blundy, J. D. & Wood, B. J. (1991). Crystal-chemical controls on the partitioning of Sr and Ba between plagioclase feldspar, silicate melts, and hydrothermal solutions. Geochimica et Cosmochimica Acta 55, 193-209.
8. Brooks, C. K. & Printzlau, I. (1978). Magma mixing in mafic alkaline volcanic rocks: the evidence from relict phenocryst phases and other inclusions. Journal of Volcanology and Geothermal Research 4, 315-331.
9. Cawthorn, R. G., Strong, D. F. & Brown, P. A. (1976). Origin of corundum-normative intrusive and extrusive magmas. Nature 259, 102-104.
10. Chapman, N. A. (1976). Inclusions and megacrysts from undersaturated tuffs and basanites, E. Fife, Scotland. Journal of Petrology 17, 472-498.
11. Chazot, G., Menzies, M. & Harte, B. (1996). Silicate glasses in spinel lherzolites from Yemen: origin and chemical composition. Chemical Geology (Isotope Geoscience) 134, 159-179.
12. Coenraads, R. R., Sutherland, F. L. & Kinny, P. (1990). The origin of sapphires: U-Pb dating of zircon inclusions sheds new light. Mineralogical Magazine 54, 113-122.
13. Coltorti, M., Bonadiman, C., Hinton, R. W., Siena, F. & Upton, B. G. J. (1999). Carbonatite metasomatism of the oceanic upper mantle: evidence from clinopyroxenes and glasses in ultramafic xenoliths of Grande Comore, Indian Ocean. Journal of Petrology 40, 133-165.
14. Colvine, R. J. L. (1968). Pyrope from Fife. Scottish Journal of Geology 4, 283-286.
15. De St Jorre, L. & Smith, D. G. W. (1988). Cathodoluminescent Ga-enriched feldspars from the Thor Lake rare-metal deposits, Northwest Territories. Canadian Mineralogist 26, 301-308.
16. Donaldson, C. H. (1984). Kinetics of pyrope megacryst reaction in ascending basaltic magma - relevance to high-pressure magmatic crystallisation at Elie Ness, East Fife. Geological Magazine 21, 615-620.
17. Draper, D. S. & Green, T. H. (1997). P-T phase relations of silicic, alkaline, aluminous xenolith glasses under anhydrous and C-O-H fluid-saturated conditions. Journal of Petrology 38, 1187-1224.
18. Duda, A. & Schmincke, H.-U. (1985). Polybaric differentiation of alkali basaltic magmas: evidence from green-core clinopyroxenes (Eifel, FRG). Contributions to Mineralogy and Petrology 91, 340-353.
19. Eiler, J. M., Valley, J. W. & Baumgartner, L. P. (1993). A new look at stable isotope thermometry. Geochimica et Cosmochimica Acta 57, 2571-2583.
20. Ferguson, J. & Fielding, P. E. (1971). The origin of the colours of yellow, green and blue sapphires. Chemical Physics Letters 10, 262-265.
21. Fielding, K. (1992). Element partitioning between coexisting carbonate and silicate liquids. Ph.D. Thesis, University of Edinburgh.
22. Frondel, C. (1954). Commercial synthesis of star sapphires and star rubies. Transactions of the American Institute of Mining and Metallurgy 6(1), 78-80.
23. Fujimaki, H. (1986). Partition coefficients of Hf, Zr, and REE between zircon, apatite and liquid. Contributions to Mineralogy and Petrology 94, 42-45.
24. Ghiorso, S. M. & Sack, O. R. (1991). Fe-Ti oxide geothermometry: thermodynamic formulation and estimation of intensive variables in silicic magmas. Contributions to Mineralogy and Petrology 108, 485-510.
25. 18O magma, Isle of Skye, Scotland: evidence from zircons. Geochimica et Cosmochimica Acta 61, 4975-4981.
26. Green, D. H. (1994). Experimental studies of trace-element partitioning applicable to igneous petrogenesis - Sedona 16 years later. Chemical Geology 117, 1-36.
27. Green, D. H. & Wallace, M. E. (1988). Mantle metasomatism by ephemeral carbonatite melts. Nature 336, 459-162.
28. Green, T. H. & Pearson, N. J. (1985). Rare earth element partitioning between clinopyroxene and silicate liquid at moderate to high pressure. Contributions to Mineralogy and Petrology 91, 24-36.
29. Guo, J. F., Green, J. F. & O'Reilly, S. Y. (1996a). Ba partitioning and the origin of anorthoclase megacrysts in basaltic rocks. Mineralogical Magazine 56, 101-107.
30. Guo, J., O'Reilly, S. Y. & Griffin, W. L. (1996b). Corundum from basaltic terrains: a mineral inclusion approach to the enigma. Contributions to Mineralogy and Petrology 122, 368-386.
31. Hamilton, D. L., Bedson, P. & Esson, J. (1989). The behaviour of trace elements in the evolution of carbonatites. In: Bell, K. (ed.) Carbonatites. London: Unwin Hyman, pp. 405-427.
32. Hinton, R. W. & Upton, B. G. J. (1991). The chemistry of zircons and coexisting phases from alkali basalt xenoliths and a syenite. Geochimica et Cosmochimica Acta 55, 3287-3302.
33. Hunter, R. H. & Upton, B. G. J. (1987). The British Isles - a Palaeozoic mantle sample. In: Nixon, P. H. (ed.) Mantle Xenoliths. New York: John Wiley, pp. 107-118.
34. Hunter, R. H., Upton, B. G. J. & Aspen, P. (1984). Meta-igneous granulite and ultramafic xenoliths from basalts of the Midland Valley of Scotland: petrology and mineralogy of the lower crust and upper mantle. Transactions of the Royal Society of Edinburgh, Earth Science 75, 75-84.
35. Irving, A. J. (1980). Petrology and geochemistry of composite ultramafic xenoliths in alkalic basalts and implications for magmatic processes within the upper mantle. American Journal of Science 280-A, 389-126.
36. Irving, A. J. (1984). Polybaric mixing and fractionation of alkalic magmas: evidence from megacryst suites. EOS Transactions, American Geophysical Union 65, 1153.
37. Irving, A. J. (1986). Polybaric magma mixing in alkali basalts and kimberlites: evidence from corundum, zircon and ilmenite megacrysts. 4th International Kimberlite Conference, Perth, 1986, Geological Society of Australia Abstract Series 16, 262-264.
38. Irving, A. J. & Frey, F. A. (1984). Trace element abundances in mcgacrysts and their host basalts: constraints on partition coefficients and megacryst genesis. Geochimica et Cosmochimica Acta 48, 1201-1221.
39. +-F photoconversion in corundum crystals. Journal of Physics and Condensed Matter 6, L569-L573.
40. 2+ activated alkaline earth feldspars. Journal of the Electrochemical Society: Solid State Science 118, 918-923.
41. 2. Journal of Petrology 39, 495-518.
42. Long, A. M., Menzies, M. A., Thirlwall, M. F., Upton, B. G. J. & Aspen, P. (1994). Carbonatite-mantle interaction: a possible origin for megacryst/xenolith suites in Scotland. In: Meyer, H. O. A. & Leonardos, O. H. (eds) Kimberlites, Related Rocks and Xenoliths. 1, International Kimberlite Conference, Brazil 1991, pp. 467-177.
43. Mariano, A. N. (1988). Some further applications of Cathodoluminescence. In: Marshall, D. J. (ed.) Cathodoluminescence of Geological Materials. New York: Unwin Hyman, pp. 94-123.
44. Mason, R. A., Smith, J. V., Dawson, J. B. & Treves, S. B. (1982). A reconnaissance of trace elements in anorthoclase megacrysts. Mineralogical Magazine 46, 7-11.
45. 4+ minerals. Physics and Chemistry of Minerals 16, 76-82.
46. Mazzone, P. & Haggerty, S. E. (1989). Peraluminous xenoliths in kimberlite: metamorphosed restites produced by partial melting of petites. Geochimica et Cosmochimica Acta 53, 1551-1561.
47. Meen, J. K. (1987). Mantle metasomatism and carbonatites: an experimental study of a complex relationship. Geological Society of America, Special Paper 215, 91-100.
48. Menzies, M. A. & Halliday, A. N. (1988). Lithospheric mantle domains beneath the Archean and Proterozoic crust of Scotland. Journal of Petrology, Special Lithosphere Issue 275-302.
49. 2- and LREE-rich mantle below eastern Australia: a REE and isotopic study of alkaline magmas and apatite-rich mantle xenoliths from the Southern Highlands Province, Australia. Earth and Planetary Science Letters 65, 287-302.
50. 18O magmas: Skye and Arran, Scotland. Abstract. Geological Society of America, Annual Meeting.
51. 2 pressure. Journal of the American Ceramic Society 39, 207.
52. Reisfeld, R., Eyal, M. & Jorgensen, C. K. (1987). Unusual luminescence of Ti (III) in aluminium oxide. Chimia 41, 117-119.
53. Schiano, P., Clochiatti, R. & Shimizu, N. (1994). Melt inclusions trapped in mantle minerals: a clue to identifying metasomatic agents in the upper mantle beneath continental and oceanic intraplate regions. Mineralogical Magazine 58A, V. M. Goldschmidt Conference, 807-808.
54. Schnetzler, C. C. & Philpotts, J. A. (1970). Partition coefficients of rare-earth elements between igneous matrix material and rock-forming mineral phenocrysts. II. Geochimica et Cosmochimica Acta 34, 331-340.
55. 3) system. Journal of Solid State Chemistry 103, 30-37.
56. Spicuzza, M. J., Valley, J. W. & McConnell, V. S. (1998). Oxygen isotope analysis of whole rock via laser fluorination: an air-lock approach. Abstract. Geological Society of America. Annual Meeting.
57. Stahle, V., Frenzel, G., Kober, B., Michard, A., Puchelt, H. & Schneider, W. (1990). Zircon syenite pegmatites in the Finero peridotite (Ivrea Zone): evidence for a syenite from a mantle source. Earth and Planetary Science Letters 101, 196-205.
58. Stephenson, P. J. (1976). Sapphire and zircon in some basaltic rocks from Queensland, Australia. Abstracts of the 25th International Geological Congress, Sydney 2, 602-603.
59. Sutherland, F. L. (1996). Alkaline rocks and gemstones, Australia: a review and synthesis. Australian Journal of Earth Sciences 43, 323-343.
60. Sutherland, F. L., Hoskin, P. W. O., Fanning, C. M. & Coenraads, R. R. (1998). Models of corundum origin from alkali basaltic terrains: a reappraisal. Contributions to Mineralogy and Petrology 133, 356-372.
61. Tait, A. S. (1959). Asterism in corundum. Journal of Gemmology 5, 65-72.
62. Thompson, R. N. (1974). Some high-pressure pyroxenes. Mineralogical Magazine 39, 768-787.
63. Upton, B. G. J., Aspen, P. & Chapman, N. A. (1983). The upper mantle and deep crust beneath the British Isles: evidence from inclusion suites in volcanic rocks. Journal of the Geological Society. London 140, 105-122.
64. Upton, B. G. J., Aspen, P. & Hunter, R. H. (1984). Xenoliths and their implications for the deep geology of the Midland Valley of Scotland and adjacent regions. Transactions of the Royal Society of Edinburgh, Earth Sciences 75, 65-70.
65. Upton, B. G. J., Aspen, P., Rex, D. C., Melcher, F. & Kinny, P. (1998). Lower crustal and possible shallow mantle samples from beneath the Hebrides: evidence from a xenolithic dyke at Gribun, western Mull. Journal of the Geological Society, London 155, 813-828.
66. Valley, J. W., Kitchen, N., Kohn, M. J., Niendorf, C. R. & Spicuzza, M. J. (1995). UWG-2, a garnet standard for oxygen isotope ratios: strategies for high precision and accuracy with laser heating. Geochimica et Cosmochimica Acta 59, 5223-5231.
67. Valley, J. W., Kinny, P. D., Schulze, D. J. & Spicuzza, M. J. (1998). Zircon megacrysts from kimberlite: oxygen isotope variability among mantle melts. Contributions to Mineralogy and Petrology 133, 1-11.
68. Walker, G. (1985). Mineralogical applications of luminescence techniques. In: Berry, F. L. & Vaughan, D. J. (eds) Chemical Bonding and Spectroscopy in Mineral Chemistry. London: Chapman and Hall, pp. 103-140.
69. Wallace, M. E. & Green, D. H. (1988). An experimental determination of primary carbonatite magma composition. Nature 335, 343-346.