Non-destructive pXRF of mafic stone tools

作者：Grave Peter^*; Attenbrow Val; Sutherland Lin; Pogson Ross; Forster Nicola

来源：Journal of Archaeological Science, 2012, 39(6): 1674-1686.

DOI：10.1016/j.jas.2011.11.011

• Portable X-ray fluorescence analysis
• Trade and exchange
• Provenance
• Stone axes
• Ground-edged hatchets
• Southeastern Australia

Archaeological use of non-destructive pXRF has been most systematically applied to the classification and provenancing of volcanic glass (obsidian) artefacts. Comparable work has yet to be developed for non-vitreous artefacts. We report results of pXRF analysis for a sample of grey to black (mafic) aboriginal hatchets from Sydney and adjacent coastal regions to the north and south. The study shows both broad and detailed classification is achievable depending on rock type and degree of elemental depletion or enrichment of the samples. PXRF analysis reveals not only distinct patterns of resource use between the three regions of this study but also enables a high degree of geographic resolution in the case of the basalt artefacts of our sample. We conclude that non-destructive pXRF is effective for reliable characterisation of non-vitreous stone artefacts that have a sufficiently complex and enriched compositional signature (i.e., unaltered basalts); with similar to 50% of the basalt hatchets in our sample matched with spatially and geologically specific sources.

• 出版日期2012-6