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The effects of exterior and lateral platform morphology and raw material on flake size and shape: results from new controlled experiments

Author(s): George Leader ; Aylar Abdollahzadeh ; Sam Lin ; Harold Dibble

Year: 2017

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Summary

Previous controlled experiments have illustrated that exterior platform angle and platform depth have a strong influence on the size and shape of a flake. Using specially made cores and a hydraulic knapping machine we present results from two new controlled experiments. The first of these involves altering the exterior and lateral margins of the platform and seeing the effects these changes have on flake mass in relation to platform depth. In the second controlled experiment, glass cores (which were used in all of our previous experiments) are replaced with cores made from basalt, obsidian and flint. In this experiment, the emphasis is on the amount of force required for the removal of flakes from each raw material in relation to platform depth. The results from both experiments have important implications for the prediction of flake size based on these important independent variables.


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The effects of exterior and lateral platform morphology and raw material on flake size and shape: results from new controlled experiments. George Leader, Aylar Abdollahzadeh, Sam Lin, Harold Dibble. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 430542)


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Abstract Id(s): 15638

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America