1. Mössbauer Spectroscopic Study of a Mural Painting from Morgadal Grande, Mexico.
- Author
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Kuno, A., Matsuo, M., Soto, A. Pascual, and Tsukamoto, K.
- Subjects
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METALLURGY in archaeology , *MURAL art , *PIGMENTS , *MOSSBAUER spectroscopy , *SPECTRUM analysis , *ARCHAEOLOGICAL surveying - Abstract
In this study, 57Fe Mössbauer spectroscopy has been applied to fragments of a mural painting excavated at Morgadal Grande, Mexico, to characterize the pigments used. A sextet attributable to hematite (α-Fe2O3) was clearly detected in the red fragments. The spectra of orange fragments showed a doublet attributable to paramagnetic high-spin Fe3+, which presumably originates from goethite (α-FeOOH) exhibiting superparamagnetic relaxation due to its small particle size. The blue fragments contained little iron. The scattered X-ray Mössbauer spectra revealed that the thickness of the pigments was larger than 20 μm. [ABSTRACT FROM AUTHOR]
- Published
- 2004
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