The Contribution of Transmission Electron Microscopy (TEM) to Understanding Pre‐Columbian Goldwork Technology

This paper highlights the contribution of transmission electron microscopy (TEM) when combined with scanning electron microscopy and energy‐dispersive X‐ray microanalysis (SEM/XEDS) to characterize objects in archaeology. The application of TEM in archaeology is not yet a common tool, but it may provide data that are significant to understanding pre‐Columbian gold metallurgy, specifically the gilding and silvering methods. Two gilded rods were studied using a combination of TEM and SEM/XEDS techniques. The objects were found at the Atacames archaeological site, in the Esmeraldas region, Ecuador, which was occupied between ad 750 and 1526 by the Atacames culture. The microchemical and structural results of the inner and the external gilded part of the artefacts support the hypothesis of a gold diffusion to the surface enhanced by chemical treatment with chloride‐rich solutions, heating and successive annealing processes. The present study reveals that microstructural investigation by TEM provides useful information with which to investigate the techniques used to modify the chemical surface composition of pre‐Columbian artefacts.     

Determining the Provenance of Cayo Pottery from Grenada,Lesser Antilles,Using Portable X‐Ray Fluorescence Spectrometry

Portable XRF was used to analyse the chemical composition of 52 indigenous Cayo ceramics from excavations and from private collections on Grenada, Lesser Antilles. Initially, a comparative baseline of data representing three different islands (Grenada, St Vincent and Trinidad) was created by analysing with pXRF ceramic material that had previously been analysed both chemically and petrographically. The field data, when compared to the laboratory baseline data, indicated that the majority of the ceramics were made with clay local to Grenada. Four samples were potentially made with clay from another, as yet unidentified, source.     

Lead Isotope Analysis of Tooth Enamel from a Viking Age Mass Grave in Southern Britain and the Constraints it Places on the Origin of the Individuals

Lead analysis of tooth enamel from individuals recovered from a Viking Age burial pit in southern England provides further evidence for their childhood origins outside Britain. All except one of the men have very low Pb concentrations that exclude anthropogenic Pb exposure. Strontium and oxygen isotope compositions identify a core group of men who have Pb isotope compositions of ²⁰⁸Pb/²⁰⁶Pb = 2.065 ± 0.021 (n = 20, 2SD) that, when compared with data from European soils, appear to exclude a childhood in the Scandinavian countries of Norway, Sweden and Finland, whereas areas of Northern continental Europe cannot be excluded.     

Late Pleistocene Lithic Procurement and Geochemical Characterization of the Cerro Kaskio Obsidian Source in South‐western Bolivia

Primary questions regarding the foraging behaviour of the first hunter–gatherers who colonized the New World are how they found, procured and utilized high‐quality raw materials for manufacturing stone tools. In this paper, we present evidence from the late Pleistocene site of Cueva Bautista in the highlands of south‐western Bolivia, which demonstrates that a substantial portion of the recovered stone tool assemblage originated in Cerro Kaskio, a recently discovered obsidian source located 15 km south‐west of the site. In addition to describing the geological and geochronological setting, we provide the first geochemical characterization of the Cerro Kaskio source by means of instrumental neutron activation analysis and energy‐dispersive X‐ray fluorescence. Supported on the technological analysis and archaeometric sourcing of the obsidian lithics found in Cueva Bautista, we discuss the nature of the procurement strategies practised by the earliest mobile hunter–gatherers who explored and colonized the Andean highlands. We conclude that opportunistic lithic resource procurement was probably an important component of the first foraging societies that explored the highland Andes.     

Application of Kernel Density Estimates to Lead Isotope Compositions of Bronzes from Ningxia,North‐West China

The aim of this paper is to apply kernel density estimates (KDEs) to the visualization and interpretation of lead isotope data from bronze assemblages found along the northern border of central China, here designated as the Arc. New lead isotope analyses of 30 leaded tin–bronze artefacts from the Wangdahu cemetery (c.500–300 bc ) in the Ningxia Hui Autonomous Region, north‐west China, provide the basis for the discussion. By using multivariate KDEs and the calculated likelihood of the overlap, the present work shows that the Wangdahu objects feature a unique linear array of isotope ratios, representing an important element of overall bronzes from the Arc in the first millennium bc . This characteristic isotope signature is fundamentally different from that of Dajing ores in north‐east China, as well from that of early Qin bronzes in Shaanxi and Gansu provinces. This suggests that a variety of metal resources were utilized by peoples living in the Arc. The KDE approach thus proves effective at presenting and comparing lead isotope data.     

Entry into working life: Internal migration and the job match quality of higher‐educated graduates

We estimate the impact of internal migration on job‐match quality for recent Dutch university and college graduates. We find positive yet modest wage returns. After controlling for the self‐selection of migrants with an IV approach, this effect is no longer significant for university graduates and all graduates from peripheral areas. We also find that, for our alternative job‐match measures, where there is evidence of migrant self‐selection, controlling for self‐selection strongly reduces the effect of internal migration on job‐match quality. In some cases, the returns on internal migration are found to be negative, which may signal forced migration.     

Magdalenian Children: Projectile Points,Portable Art and Playthings

Children, no doubt, were a significant component of Upper Palaeolithic societies. Despite this fact, however, serious identification and consideration of material culture which may have belonged to children – at least at one time during their use‐life – have not been undertaken. This situation extends to the best represented and most intensively studied of the European Palaeolithic techno‐complexes, the Magdalenian (c.21,000–14,000 cal BP), and consequently, we know very little about the children of this enigmatic people. As play, including object play, is a ‘true cultural universal’, we can be certain that Magdalenian children integrated objects into their games, with these playthings later incorporated into the archaeological record. Through examining ethnographic accounts of recent hunter‐gatherer children and reconsidering archaeological assemblages in light of these data, this paper suggests that Magdalenian playthings probably included full‐sized adult weapon tips and – more significantly – pieces of what archaeologists term ‘art mobilier’.     

Horses and the Embodiment of Elite Masculinity in the Dolenjska Hallstatt Culture

In later prehistory horse ownership was a manifestation of wealth and physical prowess, and demonstrated access to distant lands. Because of the expense and restricted availability of horses, they are often reduced to indicators of status without more nuanced considerations of how lived human‐horse interactions enmeshed them in these status displays. To complicate the simple horse/status object equivalence, this article presents a specific case for the symbolic and social significance of horses in Early Iron Age south‐eastern Slovenia through the lens of equine iconography, and argues that horses and particularly equestrianism were essential to embodying elite masculine identity. Broadly, this article seeks to move beyond equating high‐status goods with high‐status people by discussing how particular events, bodily abilities and human‐animal relationships were all intertwined in the materialization of social distinction for a particular group.     

Digital Technology in Research and Documentation of Hunter-Gatherer Rock Art in South Africa

The use of digital technology to enhance and manipulate photographs of rock paintings affords researchers insights into imagery that was formerly invisible or obscure. Image enhancement and manipulation software have greatly increased the data set available for study. There is a wide range of techniques available in the digital repertoire, depending on the aim of the research. Here, three South African case studies are discussed in which hunter-gatherer rock paintings are enhanced and manipulated to create digital “tracings” using the computer programmes Adobe Lightroom, Adobe Photoshop and DStretch. The results obtained with these simple techniques are presented here, because they might prove useful for rock art research elsewhere in the world. It must be noted, however, that these technological developments do not eliminate the subjective nature of recording and interpreting rock art or the necessity of a theoretical framework in which to understand the imagery.