A study of ochres from an Australian aboriginal bark painting using thermal methods

P. S. Thomas, B. H. Stuart, N. McGowan, J. P. Guerbois, M. Berkahn, V. Daniel

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The potential of thermogravimetric analysis (TG) as a tool for the characterisation of ochre paint used in indigenous Australian bark paintings has been investigated. TG has been combined with differential scanning calorimetry (DSC) and mass spectrometry (MS) to identify and quantify the main inorganic and organic components present in the paints. The results obtained were supported by comparison with infrared spectra and XRD data obtained for the same specimens. The potential of thermal methods for the characterisation ochres has been demonstrated, with subtle differences between small samples being able to be identified.

Original languageEnglish
Pages (from-to)507-513
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume104
Issue number2
DOIs
Publication statusPublished - May 2011
Externally publishedYes

Keywords

  • Differential scanning calorimetry
  • Infrared spectroscopy
  • Mass spectrometry
  • Ochre
  • Painting
  • Thermogravimetric analysis
  • X-ray diffraction

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