Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12136/112
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Title: Assessment of statistical agreement of three techniques for the study of cut marks: 3D digital microscope, laser scanning confocal microscopy and micro-photogrammetry
Authors: Maté-González, Miguel Ángel
Aramendi, Julia
Yravedra Saínz de los Terreros, José
Blasco, Ruth
Rosell, Jordi
González Aguilera, Diego
Domínguez-Rodrigo, Manuel
Keywords: Experimental cut marks;Laser scanning confocal microscopy;Micro-photogrammetry;Statistical agreement;Three-dimensional digital microscope
Issue Date: Sep-2017
Publisher: Wiley
Citation: Journal of Microscopy, 2017, 267 (3), 356-370
Abstract: In the last few years, the study of cut marks on bone surfaces has become fundamental for the interpretation of prehistoric butchery practices. Due to the difficulties in the correct identification of cut marks, many criteria for their description and classification have been suggested. Different techniques, such as three-dimensional digital microscope (3D DM), laser scanning confocal microscopy (LSCM) and micro-photogrammetry (M-PG) have been recently applied to the study of cut marks. Although the 3D DM and LSCM microscopic techniques are the most commonly used for the 3D identification of cut marks, M-PG has also proved to be very efficient and a low-cost method. M-PG is a noninvasive technique that allows the study of the cortical surface without any previous preparation of the samples, and that generates high-resolution models. Despite the current application of microscopic and micro-photogrammetric techniques to taphonomy, their reliability has never been tested. In this paper, we compare 3D DM, LSCM and M-PG in order to assess their resolution and results. In this study, we analyse 26 experimental cut marks generated with a metal knife. The quantitative and qualitative information registered is analysed by means of standard multivariate statistics and geometric morphometrics to assess the similarities and differences obtained with the different methodologies. Lay description The study of anthropogenic marks on bone surfaces has become fundamental for the interpretation of archaeological sites and prehistoric butchery practices. Cut marks are one of the most common traces used in the identification of prehistoric human practices. Though theoretically cut marks are defined in classic studies as distinctive V-shaped grooves that appear on the surface of a bone after the removal of meat with the aid of a tool, their correct identification is not easy as cut marks can be mistaken for other nonanthropogenic traces that also appear on bone surfaces. In the last few decades, many criteria for the description and classification of cut marks have been suggested. Different techniques have been recently applied to the study of cut marks but their reliability has never been tested. In this paper, we compare three techniques recently used in the virtual reconstruction and analysis of cut marks in order to assess their resolution and results. These techniques are based on the use of two microscopes – a digital and a laser one – and of a digital camera in order to create 3D models. A total of 26 experimental cut marks generated with a metal knife were analysed in this study by means of 3D modelling, multivariate statistics and a coordinate-based methodology for the description and analysis of the form. Here we prove that the three techniques used are equally valid for the study of cut marks and, more importantly, that a noninvasive and low-cost method based on the use of a digital camera is perfectly valid for the analyses.
URI: http://hdl.handle.net/20.500.12136/112
ISSN: 0022-2720
1365-2818
DOI: 10.1111/jmi.12575
metadata.dc.relation.publisherversion: https://doi.org/10.1111/jmi.12575
Type: Article
Appears in Collections:Arqueología

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