Evaluation of relative comparator and k O-NAA for characterization of Aboriginal Australian ochre

Rachel Popelka-Filcoff, Claire Lenehan, Michael Glascock, John Bennett, Attilla Stoipic, Jamie Quinton, Allan Pring, Keryn Walshe

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    Ochre is a significant material in Aboriginal Australian cultural expression from ceremonial uses to its application on many types of artifacts. However, ochre is a complex material, with associated surrounding minerals potentially challenging the overall analysis. In recent literature several studies have attempted to characterize ochre by a variety of techniques to understand procurement and trade. However, ochre is difficult to differentiate on major elemental or mineralogical composition and requires a detailed analysis of its geochemical "fingerprint". Neutron activation analysis (NAA) provides the high sensitivity (sub-ppm), precision and accuracy in multi-elemental analysis required for ochre. The elements of interest for ochre generally include rare earth elements (REEs) and certain transition metal elements as well as arsenic and antimony. Data from relative comparator NAA (MURR, University of Missouri, USA) is compared with data from k0-NAA OPAL (ANSTO, Lucas Heights, Australia). A discussion of the two methods will be examined for their utility in "fingerprinting" the provenance of ochre. The continuing importance of NAA to archaeometry will also be discussed.

    Original languageEnglish
    Pages (from-to)19-24
    Number of pages6
    JournalJournal of Radioanalytical and Nuclear Chemistry
    Volume291
    Issue number1
    DOIs
    Publication statusPublished - Jan 2012

    Keywords

    • K -Neutron activation analysis
    • Method comparison
    • Neutron activation analysis
    • Nuclear archaeometry
    • Ochre

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