Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-27T08:37:37.301Z Has data issue: false hasContentIssue false
  • English
  • Français

Relations between the spectral reflectance and the chemical composition in the magnetite-ulvöspinel series

Published online by Cambridge University Press:  05 July 2018

B. Halfen
B. Halfen*
Affiliation:
Department of Mineralogy and Petrology, Institute of Geology, University of Lund, Sölvegatan 13, S-223 62 Land, Sweden
Get access Rights & Permissions [Opens in a new window]

Summary

Spectral reflectances and chemical compositions of twenty-eight different grains of exsolved titanomagnetite were measured. Relations between reflectance and composition were established by calculating best-fit planes (Kummell, 1879) for the reflectance at 499 and at 617 nm. These were then transformed to expressions from which the contents of Ti and Mg can be estimated. Even though these estimates are not as accurate as microprobe values, the method is still a useful tool in the study of chemical variation in exsolved titanomagnetites.

Type
Research Article
Information
Mineralogical Magazine , Volume 42 , Issue 322 , June 1978 , pp. 265 - 269
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1978

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

Agrell, (S. O.), Peckett, (A.), Boyd, (F. R.), Haggerty, (S. E.), Bunch, (T. E.), Cameron, (E. N.), Dence, (M. R.), Douglas, (J. A. V., Plant, (A. G.), Traill, (R. J.), James, (O. B.), Keil, (K.), and Prinz, (M.), 1970. Proc. Apollo II Lunar Sc. Conf. 1, 81-6.Google Scholar
Halfen, (B.), 1976. Mineral. Mag. 40, 843-51.CrossRefGoogle Scholar
Klemm, (D. D.), 1962. Neues Jahrb. Mineral., Abh. 97, 337-56.Google Scholar
Kummell, (C. H.), 1879. The Analyst (Des Moines), 6, 97–105.CrossRefGoogle Scholar
Medenbach, (O.), 1972. Chemische Zusammensetzung irdis-chef Ulvite aus natürtich reduzierten Basalten. Ph.D. thesis, Heidelberg (Germany).Google Scholar
Nickel, (E. H.), 1958. Can. Mineral. 6, 191-9.Google Scholar
O'Reilly, (W.) and Banarjee, (S. K.), 1967. Mineral. Mag. 36, 29-37.Google Scholar
Prévot, (M.) and Mergoil, (J.), 1973. Ibid. 39, 474-81.Google Scholar
Ramdohr, (P.), 1953. Econ. Geol. 48, 677-88.CrossRefGoogle Scholar
Springer, (G.), 1967. Fortschr. Mineral. 45, 103-24.Google Scholar
Sweatman, (T. R.) and Long, (J. V. P.), 1969. J. Petrol. 10, 332-79.CrossRefGoogle Scholar