Measuring Retouch Intensity in Lithic Tools: A New Proposal Using 3D Scan Data

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• 作者：Juan I. Morales ; Carlos Lorenzo…
• 关键词：Lithic technology ; Reduction index ; Volume estimation ; End ; scrapers ; 3D scan
• 刊名：Journal of Archaeological Method and Theory
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：22
• 期：2
• 页码：543-558
• 全文大小：1,270 KB
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• 作者单位：Juan I. Morales (1) (2)
  Carlos Lorenzo (1) (2)
  Josep M. Vergès (1) (2)
  
  1. IPHES, Institut Català de Paleoecologia Humana i Evolució Social, C/ Marcel lí Domingo, s/n, 43007, Tarragona, Catalonia, Spain
  2. àrea de Prehistòria Universitat Rovira i Virgili (URV), Av. Catalunya, 35, 43002, Tarragona, Catalonia, Spain
  
• 刊物类别：Humanities, Social Sciences and Law
• 刊物主题：Social Sciences
  Archaeology
  Anthropology
  
• 出版者：Springer Netherlands
• ISSN：1573-7764

文摘

Identifying reduction dynamics in prehistoric retouched stone tools is important for understanding technological trends, as well as site function, raw material management and mobility of nomadic hunter-gatherers. In the absence of refits, the final state of the abandoned piece is the only remain that archaeologists have for the study of lithic reduction. The establishment of experimentally tested indexes providing strong correlations between estimated and real reduction are needed. In our work, we propose a new procedure for estimate reduction percentage. In this proposal, data are obtained from high resolution three-dimensional (3D) scans and manual measurements are avoided. The experimental test has been realized using distally retouched tools, the less suitable tools for reduction studies. The correlation levels obtained between the measured data and the estimated data increase substantially the original published from manual measurement, reaching a r 2 value of 0.81 and a correlation of 0.9. The main contribution of the proposed method is the very high correlation obtained in the volume estimation (r 2--.89 and r--.94) using the 3D-based measurements. The 3D models of the unretouched and retouched flakes used in this work are free to use and accessible through an online repository.