Compositional data analysis in archaeometry

We shall call an n × p data matrix fully-compositional if the rows sum to a constant, and sub-compositional if the variables are a subset of a fully-compositional data set1. Such data occur widely in archaeometry, where it is common to determine the chemical composition of ceramic, glass, metal or other artefacts using techniques such as neutron activation analysis (NAA), inductively coupled plasma spectroscopy (ICPS), X-ray fluorescence analysis (XRF) etc. Interest often centres on whether there are distinct chemical groups within the data and whether, for example, these can be associated with different origins or manufacturing technologiesGeologische Vereinigung; Universitat de Barcelona, Equip de Recerca Arqueomètrica; Institut d’Estadística de Catalunya; International Association for Mathematical Geology; Patronat de l’Escola Politècnica Superior de la Universitat de Girona; Fundació privada: Girona, Universitat i Futur

Compositional data analysis of archaeological glass: problems and possible solutions

Presentation in CODAWORK'03, session 4: Applications to archeometryGeologische Vereinigung; Universitat de Barcelona, Equip de Recerca Arqueomètrica; Institut d’Estadística de Catalunya; International Association for Mathematical Geology; Patronat de l’Escola Politècnica Superior de la Universitat de Girona; Fundació privada: Girona, Universitat i Futur

A study of the Roman personal ornaments made of metal, excluding brooches, from Southern Britain

5 volsSIGLEAvailable from British Library Lending Division - LD:D57771/85 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

A study of the Roman personal ornaments made of metal, excluding brooches, from Southern Britain

5 volsSIGLEAvailable from British Library Lending Division - LD:D57771/85 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Characterizing Roman Artifacts to Investigate Gendered Practices in Contexts Without Sexed Bodies

This article concerns the characterization of Roman artifacts so that they can play a greater role in gendered approaches to Roman sites—sites that constitute lived spaces but lack actual references to sexed bodies. It commences with a brief discussion on gendered approaches in the two main strands of Roman archaeology—classical and provincial. Within the differing frameworks of the wider disciplines of classics and archaeology, both strands focus on contexts with sexed bodies—burials, figurative representation, and inscriptions. The discussion serves as a background for more integrated and more interrogative approaches to relationships between Roman artifacts and gendered practices, approaches that aim to develop interpretative tools for investigating social practice in contexts where no representational or biologically sexed bodies are evident. Three types of artifacts—brooches, glass bottles, and needles—are used to demonstrate how differing degrees of gender associations of artifacts and artifact assemblages can provide insights into gender relationships in settlement contexts. These insights in turn contribute to better understandings of gendered sociospatial practices across the Roman world

What does early Christianity look like? Mortuary archaeology and conversion in Late Iron Age Scotland

The study of the inhumation cemeteries of Late Iron Age Scotland tends to revolve around the vexed question of whether or not they provide evidence for Christianity. As a result, our approach has been to look for ‘Christian’ practices (lack of grave goods, west-east orientation) that are expectations based on analogy with the more standardised Christianity of the later medieval period. As these burial practices originate in a Late Iron Age context, recent theoretical approaches from the study of late prehistory also need to be applied. It is the emergence of cemeteries that is new in the mid-first millennium AD, and this distinction is still under-theorized. Recent theoretical models seek to understand the significance of place, and how these cemeteries are actively involved in creating that place rather than using a predefined ‘sacred’ place. By tracing their role in shaping and being shaped by their landscapes, before, during and after their use for burial, we can begin to speak more clearly about how we can use mortuary archaeology to study the changes of c. AD 400-600. It is argued that the ambiguity of these sites lies not with the burials themselves, but in our expectations of Christianity and paganism in the Late Iron Age