M�ssbauer spectra of synthetic Ca-Fe pyroxenoids and lunar pyroxferroite

Autor: D. H. Lindsley, Eric Dowty
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