MÖSSBAUER ANALYSIS OF GLAUCONITES OF DIFFERENT BELGIAN FINDING PLACES
The Mössbauer spectra of twenty different glauconite samples from different origin and age are discussed. The spectra are fitted with five doublets : two doublets must be ascribed to Fe3+, two others to Fe2+ (both in octahedral sites (M1 and M2)). The assignment of the fifth doublet to ferric ions in tetrahedral sites is doubtful ; interlayer iron complexes can not be excluded. The correlation between the green colour of the samples and the ferrous to ferric ratio is very clear. A correlation between the age of the samples and their hyperfine parameters, derived from the Mössbauer spectra, cou... Mehr ...
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| Dokumenttyp: | Artikel |
| Erscheinungsdatum: | 1979 |
| Verlag/Hrsg.: |
HAL CCSD
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| Schlagwörter: | [PHYS.HIST]Physics [physics]/Physics archives |
| Sprache: | Englisch |
| Permalink: | https://search.fid-benelux.de/Record/base-26921334 |
| Datenquelle: | BASE; Originalkatalog |
| Powered By: | BASE |
| Link(s) : | https://hal.science/jpa-00218528 |
The Mössbauer spectra of twenty different glauconite samples from different origin and age are discussed. The spectra are fitted with five doublets : two doublets must be ascribed to Fe3+, two others to Fe2+ (both in octahedral sites (M1 and M2)). The assignment of the fifth doublet to ferric ions in tetrahedral sites is doubtful ; interlayer iron complexes can not be excluded. The correlation between the green colour of the samples and the ferrous to ferric ratio is very clear. A correlation between the age of the samples and their hyperfine parameters, derived from the Mössbauer spectra, could not be observed.