An 57Fe Mossbauer effect study on glauconites from different locations in Belgium and Northern France
- 1 June 1985
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 20 (2) , 171-179
- https://doi.org/10.1180/claymin.1985.020.2.02
Abstract
Sixteen glauconite samples from different locations in Belgium and Northern France were investigated by 57Fe Mössbauer spectroscopy at room temperature. The spectra were fitted with three Fe3+ and two Fe2+ doublets, both Fe species occupying M1(trans) and M2(cis) sites in the T-O-T layers. The third Fe3+ doublet was assigned to interlayer ferric complexes. The observed Mössbauer parameters did not show significant variations from sample to sample. No direct relation between K and Fe content was observed, although within some distinct groups (e.g. Bande Noire, Cenomanian) the amount of Fe2+ increased with increasing K content.Keywords
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