Archaeological studies of consumption are hampered by the lack of quantified data. New data from the Neolithic site of Catalhiiyiik in Turkey allows the annual consumption of obsidian at the site to be calculated as a minimum of between 116 to 318 kg. The method employed is simple and can be employed at other sites provided appropriate sampling, topographic survey, and dating strategies are implemented.
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Cessford et al. (2005) studied this question.
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