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Olivine composition determination with small-diameter X-ray powder cameras1

Published online by Cambridge University Press:  14 March 2018

J. L. Jambor  and
Charles H. Smith
J. L. Jambor
Affiliation:
Geological Survey of Canada, Ottawa
Charles H. Smith
Affiliation:
Geological Survey of Canada, Ottawa
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Summary

Olivine composition can be rapidly and accurately obtained by using standard (Straumanis-mounting) 57·3 mm X-ray powder cameras. A determinative curve based on analysed natural olivines has been constructed by plotting the mol. % Fo against the spacing of back-reflection line 174. The regression equation for the composition range Fo100 to Fo30 is

Fo (mol. %) = 4151·46−3976·45 d174

using Fe-Kα1 radiation. The fayalite end (Fo30 to Fo0) of the determinative curve shows a relatively sharp break from a straight-line relationship of d-spacing versus composition. Practical applications of the determinative curve are briefly presented.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 33 , Issue 264 , March 1964 , pp. 730 - 741
Copyright
Copyright © 1964, The Mineralogical Society

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Footnotes

1

Canadian Contribution No. 3 to the International Upper Mantle Project.

References

[Eliseev, (.N )] F1 (Mem. All-Union Min. Soc.), vol. 86, p. 657.[M.A. 14-137].Google Scholar
Heckroodt, (R. O.), 1958. Trans. Geol. Soc. South Afric., vol. 61, p. 377.[M.A. 14-351].Google Scholar
Jackson(D.), .), 1960. U.S. Geol. Survey, Prof. Paper 400B, p. 432.[M.A. 15-219].Google Scholar
Penfield, (S.L.) and Forbes, (E.H.), 1896. Amer. Journ. Sci., ser.., vol. 1, p. 129.CrossRefGoogle Scholar
Simonen, (A.), 1961. Bull. Comm. géol. Finland., vol. 196, p. 371.[M.A. 15-467].Google Scholar
Wager, (L.R.), 1960. Journ. Petrolog., vol. 1, p. 364.[M.A. 15-316].Google Scholar
Wheeler, (P.), 2nd), 1960. Bull. Geol. Soc. Amer., vol. 71, p. 1755.[M.A. 15-314].CrossRefGoogle Scholar
Yoder, (S.)., Jr. and Sahama, (Th. G.), 1957. Amer. Min., vol. 42, p. 475.[IV[.A. 14-196].Google Scholar