M�ssbauer spectra of synthetic Ca-Fe pyroxenoids and lunar pyroxferroite
Autor: | D. H. Lindsley, Eric Dowty |
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Rok vydání: | 1974 |
Předmět: | |
Zdroj: | Contributions to Mineralogy and Petrology. 48:229-232 |
ISSN: | 1432-0967 0010-7999 |
Popis: | Resolution of the iron sites in the Mossbauer spectra of Ca-Fe pyroxenoids is only partial, two doublets being apparent in each case, whereas there are up to nine cation sites in each structure. Thus the inner and outer doublets represent, respectively: two sites and two sites in Ca0.5Fe0.5SiO3 (ferrobustamite); five sites and two sites in Ca0.15Fe0.85SiO3 (pyroxferroite); and five sites and four sites in FeSiO3 (ferrosolite III). Disorder of iron and calcium which exists in the two calcium-bearing pyroxenoids is not readily apparent in the spectra. |
Databáze: | OpenAIRE |
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