Comparing traditional and virtual approaches in the micro-excavation and analysis of cremated remains

Abstract The excavation and micro-excavation of archaeological contexts are, and always have been, destructive operations by definition. This study, although preliminary, has allowed the experimentation and application of computed tomography and engineering softwares (used for the creation and manipulation of three-dimensional surfaces) in micro-stratigraphic archaeological excavations, with the objective to overcome the very destructiveness that is intrinsic to the traditional method. For this purpose, a Roman cremation urn from the monumental necropolis in Via Emilia est – Tangenziale Pasternak (Modena) was chosen as a test subject. The application of this approach consented the analysis of both context and remains as close as possible to their original condition, exhibiting minor fragmentation in comparison with the traditional method which in turn allowed a clearer determination of the individual’s biological profile. Moreover, also in virtue of the observation of elements which were not detected by the traditional method, virtual micro-excavation is to be considered a promising approach for the investigation of particular archaeological contexts, enabling greater preservation and enhancing both documentation and analysis.

[1]  K. Waterhouse The effect of weather conditions on burnt bone fragmentation. , 2013, Journal of forensic and legal medicine.

[2]  Marc Kachelrieß,et al.  Empirical beam hardening correction (EBHC) for CT. , 2010, Medical physics.

[3]  B. Mizaikoff,et al.  FIB/SEM tomography with TEM-like resolution for 3D imaging of high-pressure frozen cells , 2012, Histochemistry and Cell Biology.

[4]  R. Brooks,et al.  Beam hardening in X-ray reconstructive tomography , 1976 .

[5]  J. Richter,et al.  Preservation of Burned Bones: An Investigation of the Effects of Temperature and pH on Hardness , 2006 .

[6]  K. Kupczik,et al.  Dynamic Modelling of Tooth Deformation Using Occlusal Kinematics and Finite Element Analysis , 2016, PloS one.

[7]  J. Mckinley Bone Fragment Size in British Cremation Burials and its Implications for Pyre Technology and Ritual , 1994 .

[8]  K J Batenburg,et al.  Iterative correction of beam hardening artifacts in CT. , 2011, Medical physics.

[9]  Ravishankar Chityala,et al.  Segmentation and Visualization of a Large, High-Resolution Micro-CT Data of Mice , 2013, Journal of Digital Imaging.

[10]  B Burnett,et al.  Micro-CT for saw mark analysis on human bone. , 2018, Forensic science international.

[11]  J. Hublin,et al.  Exploring the biomechanics of taurodontism , 2015, Journal of anatomy.

[12]  E. Cunha,et al.  Weight References for Burned Human Skeletal Remains from Portuguese Samples , 2013, Journal of forensic sciences.

[13]  A. Sperduti,et al.  Towards a new osteometric method for sexing ancient cremated human remains. Analysis of Late Bronze Age and Iron Age samples from Italy with gendered grave goods , 2019, PloS one.

[14]  K. Aplin,et al.  Using a 3-stage burning categorization to assess post-depositional degradation of archaeofaunal assemblages: Some observations based on multiple prehistoric sites in Australasia , 2016 .

[15]  J. Hsieh,et al.  An iterative approach to the beam hardening correction in cone beam CT. , 2000, Medical physics.

[16]  J. Dunlop Traffic Light Discoloration in Cremated Bones , 1978, Medicine, science, and the law.

[17]  T. Anderson,et al.  Analysis of Roman cremation vessels by computerized tomography , 1995 .

[18]  Davide Caramella,et al.  An investigation of Etruscan cremations by Computed Tomography (CT) , 2010, Antiquity.

[19]  Lucia Martina Scalise,et al.  A multianalytic investigation of weapon-related injuries in a Late Antiquity necropolis, Mutina, Italy , 2018 .

[20]  S. Brooks,et al.  Skeletal age determination based on the os pubis: A comparison of the Acsádi-Nemeskéri and Suchey-Brooks methods , 1990 .

[21]  Aki Kallonen,et al.  Analysis of short fibres orientation in steel fibre-reinforced concrete (SFRC) by X-ray tomography , 2013, Journal of Materials Science.

[22]  Niels Lynnerup,et al.  COMPUTED TOMOGRAPHY AND COMPUTED RADIOGRAPHY OF LATE BRONZE AGE CREMATION URNS FROM DENMARK: AN INTERDISCIPLINARY ATTEMPT TO DEVELOP METHODS APPLIED IN BIOARCHAEOLOGICAL CREMATION RESEARCH* , 2012 .