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Characterization of Goethite and Hematite in a Tunisian Soil Profile by Mössbauer Spectroscopy
Clays and clay minerals
As part of the characterization of a Tunisian red soil profile, six samples, taken at different depths, were investigated by MSssbauer spectroscopy at room temperature and at 80 K to obtain information about the various types of Fe oxides present. By considering magnetic hypertine field distributions, the spectra of goethite and hematite were well resolved. Chemical analyses of the samples revealed a partial substitution of Fe by A1 and Mn. The spectral behavior of the goethite wasdoi:10.1346/ccmn.1986.0340307 fatcat:efbvw4ppizdbbhioptpfu54qgi