Functional Analysis of Stone Tools: A Cautionary Note on the Role of Animal Fats

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Abstract
Recent studies have suggested that variations in areal distributions of utilized and non-utilized lithic materials can aid in the delineation of functional site areas. Microscopic analyses of experimentally produced and utilized flakes suggest that due to an accumulation of animal fats along the working edge significant numbers of utilized flakes may not display wear indicating use. Factors of lithology and variations in butchering technique are considered and implications for areal patterns explored.

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