Laser profilometry and length-scale analysis of stone tools: second series experiment results
Based on the need to develop a method to reliably and objectively document and discriminate the use‐wear on archaeological stone tools, Stemp et al. (2009) tested whether the surface roughness measured on experimentally worn stone tools used on different contact materials could be discriminated. Res...
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Published in | Scanning Vol. 32; no. 4; pp. 233 - 243 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
San Francisco
Wiley Subscription Services, Inc., A Wiley Company
01.07.2010
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Subjects | |
Online Access | Get full text |
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Summary: | Based on the need to develop a method to reliably and objectively document and discriminate the use‐wear on archaeological stone tools, Stemp et al. (2009) tested whether the surface roughness measured on experimentally worn stone tools used on different contact materials could be discriminated. Results of these initial experiments indicated that discrimination was possible and also determined the scales over which this discrimination occurred. In this article, we report the results of additional experiments using the same method on a second set of tools to test its reliability and reproducibility. In these experiments, four flint flakes were intensively used for 20 min on either conch shell or dry deer antler. The surface roughness or texture of the stone tools was measured by generating 2D profiles using a UBM laser profilometer. Relative lengths (RLs) calculated from the profiles were used directly as characterization parameters and subsequently compared statistically at each scale using the F‐test to establish a level of confidence for the differentiation at each scale represented in the measured profiles. The mean square ratios of measurement data were used to determine whether the variation in roughness was statistically significant and to what level of confidence. The scales at which there was a high level of confidence were the ones at which the tools were differentiable. The results of these experiments confirm our previous findings that RLs, over certain scale ranges, can discriminate the stone tool surface wear profiles produced by the different contact materials. SCANNING 32: 233–243, 2010. © 2010 Wiley Periodicals, Inc. |
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Bibliography: | Keene State College Faculty Development Grant ArticleID:SCA20200 istex:B805650A4FFFB07E3C7C08F6EB9B4658CA2ADB59 ark:/67375/WNG-KH16DDS2-8 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 0161-0457 1932-8745 1932-8745 |
DOI: | 10.1002/sca.20200 |