pXRF: a study of inter-instrument performance

Integrating portable X-ray fluorescence (pXRF) instrumentation into archaeological investigations has generated as much interest as skepticism because several characteristics of the technique limit analytical accuracy and precision. This paper seeks to explore inter-instrument performance in order to assess the potential pXRF instrumentation has in examining the elemental composition of lithic raw materials. Two pXRF instruments, Delta and Omega models both manufactured by Olympus Innov-X Systems, were utilized to obtain the trace element signatures of five fine-grained volcanic sources and four obsidian sources in the Great Basin. We compared the two portable instruments to a wavelength-dispersive instrument extensively calibrated with geologic standards and to a commercial benchtop energy-dispersive system. Our results suggest that the relationships between the data produced by these different instruments are complex, and as we look to the future of pXRF use in archaeological analysis we argue that that the same strict protocols applied in laboratory-based XRF analyses, involving instrument calibration, evaluation of inter-instrument performance, and comparison to accepted geologic standards, need to be applied in pXRF analysis.     

路易斯·宾福德访谈

伦福儒问:让我们从过去谈起,先谈谈你早年的生活吧。宾福德答:我在弗吉尼亚州诺福克(Norfolk)上的高中,大部分学校时光都是在海边度过的。我对学校不是很有兴趣,倒是更愿意逮麝鼠,在海边泥滩上闲逛。     

Gender and Sanctity in the Middle Ages

This review essay examines recent trends and developments in the study of medieval sanctity and gender, looking at the range of approaches which have been and are being taken by both historians and literary scholars to a wide variety of hagiographic texts. Two recent studies of medieval hagiography are reviewed, John Kitchen, Saints' Lives and the Rhetoric of Gender: Male and Female in Merovingian Hagiography and the collection Gendered Voices: Medieval Saints and Their Interpreters edited by Catherine Mooney. These works are representative of differing approaches to the issue of male authors' representations of female sanctity and concomitant issues of gender ideology.     

Place-based corporate hegemony: General Electric in Tell City, Indiana, 1943–1947

This paper examines the dynamics behind the selling of a federally owned World War II factory in Tell City, Indiana in 1946 and 1947. The federal agency charged with disposing of wartime plant, the War Assets Administration, reversed its decision to sell the factory to a small innovative company, Electra-Voice, selling it instead to the giant electrical equipment manufacturer, General Electric. What would make federal administrators who were part of a powerful liberal state apparatus committed to economic competition and anti-monopoly change their mind? The answer lies in what I call place-based corporate hegemony. Probing the material consequences of everyday action, place-based corporate hegemony revolves around the formation of alliances based on axiomatic values, the continued appeal of these values, the redistribution of symbolic and material resources, and the incorporation of threatening elements. Deploying a range of archival materials I show how the concerted efforts of the community, business organizations, politicians and unions as well as General Electric to question the initial decision forced the state to rethink and change its decision.     

Death on the Seine: The mystery of the pagan king Setric

In 943, a pagan king called Setric arrived with a fleet on the Seine, seeking to ‘take over the whole area without a grant from the king’ and to bring the young Richard and his Rouen Northmen back ‘to the worship of idols, and to bring back pagan rites’. But this was not to be because the young Carolingian king Louis IV d’Outremer was quickly on the scene and engaged Setric and his dux Turmod in battle. Louis’s mounted forces were victorious and both Setric and Turmod were killed. As the great French historian Philippe Lauer said: ‘La défaite du viking Setric et du renégat Turmod est un événement important dans l’histoire de l’établissement des Normands en Neustrie’. The mystery examined in this article is, who was this pagan king Setric (ON Sigtryggr) who had been sent to Valhalla? And where had he come from —York or Denmark? It is shown that whilst a Danish origin for King Setric cannot be completely excluded, the equation of a King Sihtric of York with King Setric on the Seine is more likely and is supported by a plethora of onomastic, chronological, numismatic and contextual evidence.