Ferric iron in upper mantle Cr-spinels

a Mossbauer spectroscopic study

S. Nasir, A. F. Lahlooh, S. Mahmood, I. A. Al-Jarayesh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Mossbauer spectra for 14 Cr-bearing spinels, separated from spinel lherzolite xenoliths, were measured to study their Fe2+-Fe3+ crystallographic ordering. Spectra acquired at 298 and 77 K suggest that both Fe2+ and Fe3+ are tetrahedrally coordinated in lherzolite Cr-bearing spinels with low Fe3+/Fetot ratios. The investigated Cr-spinels show similar hyperfine parameters, quadrupole splittings and isomer shifts to Mossbauer studies of upper mantle Cr-spinels from lherzolite xenoliths as reported elsewhere, suggesting the similarity in Fe2+ and Fe3+ ordering. -from Authors

Original languageEnglish
Pages (from-to)369-375
Number of pages7
JournalChemie der Erde - Geochemistry
Volume53
Issue number4
Publication statusPublished - 1993

Fingerprint

Bearings (structural)
lherzolite
upper mantle
Earth mantle
Iron
iron
Isomers
spinel
isomers
quadrupoles
shift

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Nasir, S., Lahlooh, A. F., Mahmood, S., & Al-Jarayesh, I. A. (1993). Ferric iron in upper mantle Cr-spinels: a Mossbauer spectroscopic study. Chemie der Erde - Geochemistry, 53(4), 369-375.

Ferric iron in upper mantle Cr-spinels : a Mossbauer spectroscopic study. / Nasir, S.; Lahlooh, A. F.; Mahmood, S.; Al-Jarayesh, I. A.

In: Chemie der Erde - Geochemistry, Vol. 53, No. 4, 1993, p. 369-375.

Research output: Contribution to journalArticle

Nasir, S, Lahlooh, AF, Mahmood, S & Al-Jarayesh, IA 1993, 'Ferric iron in upper mantle Cr-spinels: a Mossbauer spectroscopic study', Chemie der Erde - Geochemistry, vol. 53, no. 4, pp. 369-375.
Nasir, S. ; Lahlooh, A. F. ; Mahmood, S. ; Al-Jarayesh, I. A. / Ferric iron in upper mantle Cr-spinels : a Mossbauer spectroscopic study. In: Chemie der Erde - Geochemistry. 1993 ; Vol. 53, No. 4. pp. 369-375.
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