Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-26T17:46:34.641Z Has data issue: false hasContentIssue false
  • English
  • Français

A reconnaissance of trace elements in anorthoclase megacrysts

Published online by Cambridge University Press:  05 July 2018

R. A. Mason ,
J. V. Smith ,
J. B. Dawson  and
S. B. Treves
R. A. Mason
Affiliation:
Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois USA 60637
J. V. Smith
Affiliation:
Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois USA 60637
J. B. Dawson
Affiliation:
Department of Geology, University of Sheffield, Sheffield, S1 3JD
S. B. Treves
Affiliation:
Department of Geology, University of Nebraska, Lincoln, Nebraska USA 68508
Get access Rights & Permissions [Opens in a new window]

Abstract

Major, minor, and trace elements were measured with electron and ion microprobes for eighteen anorthoclase megacrysts from five locations. Comparisons with concentration ranges tabulated by Smith (1974) show excellent agreement except for consistently lower values of Mg and B. The discrepancy for Mg probably reflects Mg-rich impurities contaminating samples analysed by bulk methods. The cause of the discrepancy for B is unknown and deserves further study. Samples from Mt. Erebus, Antarctica, contain glass inclusions from which the following crystal/liquid partition coefficients ensue: Mg, 0.008; P, 0.04; Ti, 0.08; Fe, 0.04; Ba, 5.2; Sr, 8; Rb, 0.27.

Type
Research Article
Information
Mineralogical Magazine , Volume 46 , Issue 338 , March 1982 , pp. 7 - 11
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Armstrong, R. L. (1978 New Zealand J. Geol. and Geophys. 21, 685–98.CrossRefGoogle Scholar
Chapman, N. A. (1974 Scot. J. Geol. 10, 223–7.CrossRefGoogle Scholar
Chapman, N. A. (1976 J. Petrol. 17, 472–98.CrossRefGoogle Scholar
Clocchiatti, R., Desnoyers, C., Sabroux, J-C., Tazieff, H., and Wilhelm, S. (1976 Bull. Soc.ft. Mineral. Crystal- Iogr. 99, 98–110.Google Scholar
Dudas, M. J., Schmitt, R. A., and Harward, M. E. (1971 Earth Planet. Sci. Lett. I1, 440–6.CrossRefGoogle Scholar
Forsyth, I. H., and Chisholm, J. I. (1977 The Geology of East Fife. Edinburgh, HMSO.Google Scholar
Goldich, S. S., Treves, S. B., Suhr, N. H., and Stuckless, J. S. (1975 J. Geol. 83, 415–35.CrossRefGoogle Scholar
Hanson, G. N. (1978 Earth Planet. Sci. Lett. 38, 26–43.CrossRefGoogle Scholar
Hoare, J. M., Condon, W. H., Cox, A., and Dalrymple, G. B. (1968 Geol. Soc. Am. Mere. 116, 377–413.Google Scholar
Irving, A. J. (1974 Geol. Soc. Am. Bull. 85, 150–314.2.0.CO;2>CrossRefGoogle Scholar
Kutolin, V. A., and Frolova, V. M. (1970 Contrib. Mineral. Petrol. 29, 163–79.CrossRefGoogle Scholar
Kyle, P. R. (1977 New Zealand J. Geol. and Geophys. 20, 1123–46.CrossRefGoogle Scholar
Mountain, E. D. (1925 Mineral. Mag. 20, 331–45.Google Scholar
Schramm, D. N., Tera, F., and Wasserburg, G. J. (1970 Earth Planet. Sci. Lett. 10, 44–59.CrossRefGoogle Scholar
Smith, J. V. (1974 Feldspar Minerals, vol. 2. Springer, Heidelberg.Google Scholar
Smith, J. V. and Ribbe, P. H. (1966 J. Geol. 74, 197–216.CrossRefGoogle Scholar
Smith, J. V. Delaney, J. S., Hervig, R. L., and Dawson, J. B. (1981 Lithos, in press.Google Scholar
Stern, W. B. (1969 Contrib. Mineral. Petrol. 20, 198–202.CrossRefGoogle Scholar
Sun, S. S., and Hanson, G. N. (1976 Ibid. 54, 139–55.Google Scholar