Differentiation of ferro-basaltic magmas under conditions open and closed to oxygen: Implications for the skaergaard intrusion and other natural systems

Journal of Petrology

Volumn 37, Issue 4, 1996, Pages 837-858

  Toplis, M J ^a,b   Carroll, M R ^a  

^a UNIVERSITY OF BRISTOL   (United Kingdom)

^b UNIVERSITÄT BAYREUTH   (Germany)

Author keywords

Ferro basalt; Iron enrichment; Oxygen fugacity; Skaergaard

Indexed keywords

BASALT; DIFFERENTIATION; FRACTIONAL CRYSTALLIZATION; OXYGEN FUGACITY;

EID: 0030511836     PISSN: 00223530     EISSN: None     Source Type: Journal    
DOI: 10.1093/petrology/37.4.837     Document Type: Article

References (51)

1. Anderson, A. T. & Wright, T. L., 1972. Phenocrysts and glass inclusions and their bearing on the oxidation and mixing of basaltic magmas, Kilauea Volcano, Hawaii. American Mineralogist 57, 188-216.
2. Brooks, C. K. & Nielsen, T. F. D., 1978. Early stages in the differentiation of the Skaergaard magma as revealed by a closely related suite of dike rocks. Lithos 11, 1-14.
3. Brooks, C. K. & Nielsen, T. F. D., 1990. The differentiation of the Skaergaard Intrusion. A discussion of Hunter and Sparks. Contributions to Mineralogy and Petrology 104, 244-247.
4. Brooks, C. K., Larsen, L. M. & Nielsen, T. F. D., 1991. Importance of iron-rich tholeiitic magmas at divergent plate margins: a reappraisal. Geology 19, 269-272.
5. Buddington, A. F. & Lindsley, D. H., 1964. Iron-titanium oxide minerals and synthetic equivalents. Journal of Petrology 5, 310-357.
6. Byers, C. D., Christie, D. M., Muenow, D. W. & Sinton, J. M., 1984. Volatile contents and ferric-ferrous ratios of basalt, ferrobasalt, andesite and rhyodacite glasses from the Galapagos 95·5°W propagating rift. Geochimica et Cosmochimica Acta 48, 2239-2245.
7. Campbell, I. H. & Nolan, J., 1974. Factors affecting the stability field of Ca-poor pyroxene and the origin of the Ca-poor minimum in Ca-rich pyroxenes from tholeiitic intrusions. Contributions to Mineralogy and Petrology 48, 205-218.
8. Carmichael, I. S. E., 1964. The petrology of Thingmuli, a Tertiary volcano in eastern Iceland. Journal of Petrology 5, 435-460.
9. Carmichael, I. S. E., 1967. The iron-titanium oxides of salic volcanic rocks and their associated ferromagnesian silicates. Contributions to Mineralogy and Petrology 14, 36-64.
10. Carmichael, I. S. E. & Ghiorso, M. S., 1986. Oxidation-reduction relations in basic magma: a case for homogeneous equilibria. Earth and Planetary Science Letters 78, 200-210.
11. Christie, D. M., Carmichael, I. S. E. & Langmuir, C. H., 1986. Oxidation states of mid-ocean ridge basalt glasses. Earth and Planetary Science Letters 79, 397-411.
12. Frost, B. R. & Lindsley, D. H., 1992. Equilibria among Fe-Ti oxides, pyroxenes, olivine and quartz: Part II. Application. American Mineralogist 77, 1004-1020.
13. Frost, B. R., Lindsley, D. H. & Anderson, D. J., 1988. Fe-Ti oxide-silicate equilibria: assemblages with fayalitic olivine. American Mineralogist 73, 727-740.
14. Ghiorso, M. S. & Carmichael, I. S. E., 1985. Chemical mass transfer in magmatic processes. II. Applications in equilibrium crystallization, fractionation and assimilation. Contributions to Mineralogy and Petrology 90, 121-141.
15. Ghiorso, M. S. & Sack, R. O., 1995. Chemical mass transfer in magmatic processes. IV. A revised and internally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures. Contributions to Mineralogy and Petrology 119, 197-212.
16. Ghiorso, M. S., Carmichael, I. S. E., Rivers, M. L. & Sack, R. O., 1983. The Gibbs free energy of mixing of natural silicate liquids; an expanded regular solution approximation for the calculation of magmatic intensive variables. Contributions to Mineralogy and Petrology 84, 107-145.
17. Helz, R. T., 1987. Differentiation behavior of Kilauea Iki lava lake, Kilauea Volcano, Hawaii: an overview of past and current work. In: Mysen, B. O. (ed.) Magmatic Processes: Physiochemical Principles. Geochemical Society Special Publication 1, 241-258.
18. Hess, P. C., Rutherford, M. J., Guillemette, R. N., Ryerson, F. J. & Tuchfeld, H. A., 1975. Residual products of fractional crystallization of lunar magmas: an experimental study. Proceedings of the 6th Lunar Science Conference. Houston, TX: Lunar Science Institute, pp. 895-909.
19. Hill, R. & Roeder, P., 1974. The crystallization of spinel from basaltic liquid as a function of oxygen fugacity. Journal of Geology 82, 709-729.
20. Hunter, R. H. & Sparks, R. S. J., 1987. The differentiation of the Skaergaard Intrusion. Contributions to Mineralogy and Petrology 95, 451-461.
21. Hunter, R. H. & Sparks, R. S. J., 1990. The differentiation of the Skaergaard Intrusion. Reply to McBirney and Naslund. Contributions to Mineralogy and Petrology 106, 248-254.
22. Juster, T. C., Grove, T. L. & Perfit, M. R., 1989. Experimental constraints on the generation of Fe-Ti basalts, andesites, and rhyodacites at the Galapagos spreading centre, 85°W and 95°W. Journal of Geophysical Research 94, 9251-9274.
23. Kilinc, A., Carmichael, I. S. E., Rivers, M. L. & Sack, R. O., 1983. The ferric-ferrous ratio of natural silicate liquids equilibrated in air. Contributions to Mineralogy and Petrology 83, 136-140.
24. Langmuir, C. H., 1989. Geochemical consequences of in situ crystallization. Nature 340, 199-205.
25. Langmuir, C. H. & Hanson, G. N., 1981. Calculating mineral-melt equilibria with stoichiometry, mass balance, and single-component distribution coefficients. In: Newton, R. C., Navrotsky, A. & Wood, B. J. (eds) Advances in Physical Geochemistry, Vol. 1: Thermodynamics of Minerals and Melts. Berlin: Springer-Verlag.
26. McBirney, A. R., 1989. The Skaergaard layered series: I. Structure and average compositions. Journal of Petrology 30, 363-397.
27. McBirney, A. R. & Naslund, H. R., 1990. The differentiation of the Skaergaard Intrusion. A discussion of Hunter and Sparks. Contributions to Mineralogy and Petrology 104, 235-240.
28. Morse, S. A., 1979. Kiglapait geochemistry: II. Petrography. Journal of Petrology 20, 591-624.
29. Morse, S. A., 1981. Kiglapait geochemistry IV: The major elements. Geochimica et Cosmochimica Acta 45, 461-479.
30. Morse, S. A., 1984. Cation diffusion in plagioclase feldspar. Science 225, 504-505.
31. Morse, S. A., 1990. The differentiation of the Skaergaard Intrusion. A discussion of Hunter and Sparks. Contributions to Mineralogy and Petrology 104, 240-244.
32. Morse, S. A., 1996. Kiglapait mineralogy III: Olivines and the principles of igneous fractionation. Journal of Petrology, in press.
33. Morse, S. A., Lindsley, D. H. & Williams, R. J., 1980. Concerning intensive parameters in the Skaergaard Intrusion. American Journal of Science 280A, 159-170.
34. Naslund, H. R., 1989. Petrology of the Basistoppen sill, East Greenland: a calculated magma differentiation trend. Journal of Petrology 30, 299-319.
35. Nielsen, R. L., 1988. A model for the simulation of combined major and trace element liquid lines of descent. Geochimica et Cosmochimica Acta 52, 27-38.
36. Nielsen, R. L., 1990. Simulation of igneous differentiation processes. In: Nicholls, J. & Russell, J. K. (eds) Modern Methods of Igneous Petrology: Understanding Magmatic Processes. Mineralogical Society of America, Reviews in Mineralogy 24, 65-105.
37. Osborn, E. F., 1959. Role of oxygen pressure in the crystallization and differentiation of basaltic magma. American Journal of Science 257, 609-647.
38. Presnall, D. C., 1966. The join forsterite-diopside-iron oxide and its bearing on the crystallization of basaltic and ultramafic magmas. American Journal of Science 264, 753-809.
39. Sato, M., 1978. Oxygen fugacity of basaltic magmas and the role of gas-forming elements. Geophysical Research Letters 5, 447-449.
40. Sato, M. & Valenza, M., 1980. Oxygen fugacities of the layered series of the Skaergaard intrusion, East Greenland. American Journal of Science 280A, 134-158.
41. Shi, P. & Libourel, G., 1991. The effects of FeO on the system CMAS at low pressure and implications for basalt crystallization processes. Contributions to Mineralogy and Petrology 108, 129-145.
42. O2 and T-ρ paths of tholeiitic magmas. Contributions to Mineralogy and Petrology 113, 73-86.
43. Sparks, R. S. J., 1988. Petrology and geochemsitry of the Loch Ba ring-dyke, Mull (N.W. Scotland): an example of the extreme differentiation of tholeiitic magmas. Contributions to Mineralogy and Petrology 100, 446-461.
44. Sparks, R. S. J., Huppert, H. E., Koyaguchi, T. & Hallworth, M. A., 1993. Origin of modal and rhythmic igneous layering by sedimentation in a convecting magma chamber. Nature 361, 246-248.
45. Thomson, B. A., 1986. The petrology and geochemistry of the Tertiary cone-sheet complex, Island of Mull, Scotland. Ph.D. Thesis, King's College, London.
46. Toplis, M. J. & Carroll, M. R., 1995. An experimental study of the influence of oxygen fugacity on Fe-Ti oxide stability, phase relations, and mineral-melt equilibria in ferro-basaltic systems. Journal of Petrology 36, 1137-1170.
47. Toplis, M. J., Libourel, G. & Carroll, M. R., 1994. The role of phosphorus in the crystallization processes of basalt: an experimental study. Geochimica et Cosmochimica Acta 58, 797-810.
48. Wager, L. R., 1960. The major element variation of the layered series of the Skaergaard intrusion and a re-estimation of the average composition of the hidden layered series and of the successive residual magmas. Journal of Petrology 1, 364-398.
49. Wager, L. R. & Brown, G. M., 1967. Layered Igneous Rocks. Edinburgh: Oliver and Boyd, 558 pp.
50. Weaver, J. S. & Langmuir, C. H., 1990. Calculation of phase equilibria in mineral-melt systems. Computers and Geosciences 16(1), 1-19.
51. 2; intensive parameters in the Skaergaard intrusion, East Greenland. American Journal of Science 271, 132-146.