| Abstract: |
An excavation carried out at the site of Non Sila in northeast Thailand indicated that it was a quarry and workshop for the production of underground axe/adze performs. As far as can be determined the site was in use during the Metal Age times, the first millennium BC, and this indicates the persistence of volcanic stone as a cheap alternative raw material to bronze and iron for tool making. The reduction sequence for the preforms appears to be straightforward, involving the hard hammer shaping of easily procured andesitic tuff nuclei.
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