The technological versus methodological revolution of portable XRF in archaeology

Portable X-ray fluorescence (pXRF) instruments have gained considerable attention within the archaeological community. Few other recent instrumental developments have generated such debate. Much of this debate, which is dominated by scepticism over analytical performance, has occurred in informal settings. Rather than judge the use of pXRF based on unpublished work and conference banter, we conducted an extensive literature review of peer-reviewed research that used this technology. Our focus is developing an understanding of how, where, and why pXRF is being used in archaeology. What interests us most are research designs into which only pXRF could be integrated and the new research approaches these instruments may facilitate. Trends that emerged from the literature are surprising. For example, only 43% of the archaeological “pXRF” papers actually involve handheld instruments. In addition, more than four-fifths of handheld pXRF in archaeology is apparently conducted in laboratory contexts. Only 3% has been conducted in a fieldhouse or on-site laboratory, and 15% at an excavation, on a survey, or inside a historic structure. Here we argue that, while the technical capability to analyse archaeological materials using portable instruments may exist, it is not necessarily true the methodological and theoretical frameworks are in place to allow such activities to be archaeologically successful and significant. Because handheld pXRF is uniquely suited to in situ analysis, we expect the first changes in methodological and theoretical approaches will involve space, context, and related frameworks.     

Safe Places in Domestic Spaces: Two-Year-Olds at Play in their Homes

This paper contributes to the growing research literature on children's ‘intimate geographies’ by focusing on two-year-old children's explorations and play within the domestic spaces of their homes. It draws on video data showing three young girls playing in selected home spaces i.e. a family grocery shop in Peru, the upstairs rooms of a house in America, and the balcony of an apartment in Italy. Through analysis of short video sequences the paper describes the way children use and invest meaning in these spaces. It is argued that the three domestic locations can be seen as ‘safe places’, in both material and personal senses; and that they enable children's sense of belonging, foster their ‘emplaced knowledge’ and build on their confidence to explore spaces further afield.     

Sousveilling the ‘Global War on Terror’

This article theorises what it means to challenge official regimes of surveillance in the War on Terror by further developing the notion of ‘sousveillance’. In particular, we focus on the performative dimension of surveillance by attending to its sites of struggle, particularly where alternative and counter-performances work to disrupt and dislodge official regimes of vision. These potent counter-performances have become important flashpoints for discussion in the ongoing negotiation of security state power since the onset of the War on Terror. The article begins by considering what it means to call surveillance ‘performative’ and how such official performances have had a documented chilling effect on free expression and democratic deliberation. It continues by exploring Steve Mann’s notion of ‘sousveillance’, or the view from below, as a theoretical resource for understanding counter-visual performances that otherwise challenge authoritarian surveillant practices. Finally, the article illustrates these dynamics through a number of sousveillant performances that have provoked new deliberative spaces in the context of the War on Terror.     

Mapping an invisible population: the uneven geography of second-home tourism

Second-home tourism is a very popular form of tourism in many countries, particularly in the Nordic countries. More than half of the Swedish population have access to second homes. Previous studies have revealed that there is great variation between different second homes. Examples range from rustic Australian shacks, lonely cabins in the Norwegian mountains, spacious Swedish archipelago villas and palatial Russian dachas. Still, second homes are often seen and analysed as a unitary category – a perspective that obscures the considerable heterogeneity within the category as well as spatial differences in the impact of second-home tourism. Using a second-home typology from previous research and data on about 660,000 second homes, we analyse the heterogeneity of second homes by mapping the composition of the Swedish second-home stock. Results show the uneven geography of second-home tourism, revealing significant and sometimes steep differences between peripheral areas and urban hinterlands, tourism hot-spots, and areas in decline. Based on these results, we assert that there is good cause to move away from using second homes as a unitary category. Instead, we argue for viewing second homes as an umbrella concept with dwelling use in focus. This enables a greater sensibility to place and more accurate analyses of the uneven impacts of second-home tourism. The results also give greater insights into the impact of the ‘invisible population’ of second-home owners from a public planning perspective.     

The Use of Mineralogy to Identify Sources of Soapstone Artefacts: an Example from Soapstone Ridge,Georgia (USA)

The late Archaic Soapstone Ridge quarries, near Atlanta, Georgia, are the largest sources of archaeological soapstone in the south‐eastern USA. Ten soapstone artefacts from the coastal plain, over 200 km south of Soapstone Ridge (SSR), were used in an attempt to relate their mineralogy to that of the Soapstone Ridge quarries and to investigate the utility of mineralogy in the sourcing of soapstone. There is an overall similarity in the abundance of the major soapstone minerals, talc, chlorite and amphiboles in the artefacts and the SSR soapstone. Differences in the variety of amphibole (tremolite/actinolite, magnesiohornblende and magnesiocumingtonite/anthophyllite) and FeTi oxides (magnetite and ilmenite) eliminate SSR as a source for some of the artefacts. The compositions of chlorite (Cr), magnesiohornblende (Si, Al) and Fe oxides (Cr, Mn) in other artefacts are not consistent with a Soapstone Ridge source. The talc compositions are identical in the artefacts and the SSR soapstone. The mineral assemblage and compositions of two artefacts are consistent with a Soapstone Ridge source. Despite an overall similarity in the modal mineralogy of the artefacts and Soapstone Ridge quarries, there is enough diversity to distinguish between artefacts from Soapstone Ridge or some other source. Mineralogy is a useful tool for the evaluation of soapstone sources.