Digital imaging technology and experimental archeology: a methodological framework for the identification and interpretation of fire modified rock (FMR) |
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Authors: | Simen Oestmo |
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Institution: | Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, 900 S. Cady Mall, Rm. 233, Tempe, AZ 85281, USA |
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Abstract: | This paper presents the results of a series of experiments for the identification and analysis of fire modified rock (FMR). FMR is a common but frequently overlooked artifact type. Experiments were conducted simulating the effects of different hypothetical burning scenarios on rocks similar to those found in a South African Middle Stone Age site. A digital imaging method was then used to quantify FMR color values, designed to limit intra-analyst bias. Statistical tests and a blind test suggest that unburned rocks and experimental FMR can be separated statistically based on physical appearance. Two burning scenario models, based on measured experimental data were applied to archaeological FMR from a South African Middle Stone Age site named Pinnacle Point 5-6 (PP5-6) and show that the archaeological samples are not statistically different from a simulated campfire and possibly a lithic raw material heat-treatment fire. |
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Keywords: | Fire modified rock Experimental archeology Hearths African Middle Stone Age Digital imaging technology |
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