Lead isotope and metal source of Shang bronzes: a response to Sun et al.’s comments

In this brief response to Sun et al.’s ( 2018 ) comments on our paper, we re‐emphasize that archaeological, chemical and isotopic evidence are all relevant to the discussion about the metal source of the Shang period with highly radiogenic lead isotope ratios. The southern African bronzes have much lower lead contents and quite different lead isotopic signatures than the Shang bronzes. More importantly, there was no metallurgy of any kind in southern Africa before c.200 ce , so southern Africa cannot possibly be the source of Shang bronze, which date to about 1500 to 1000 bce .     

Enacting nationalism through youthful mobilities? Youth,mobile phones and digital capitalism in a Lao‐Vietnamese borderland

Mobile phone use has become a defining feature of what it means to be young, and the relatively remote Lao‐Vietnamese borderland area that is the focus of this study is no exception. Drawing on Benedict Anderson's Imagined Communities, this article investigates the interplay between the everyday styles of being young, the forces of digital capitalism and the enactment of nationalism. We do this with a focus on ethnic minority youth's appropriation of the mobile services offered by Viettel, the most popular mobile services provider in the study area and owned by the Vietnamese Ministry of Defence. We suggest that the everyday performances of being young, revolving around the mobile phone, are affected by the forces of digital capitalism. We further suggest that the cultural context of Viettel's digital capitalism is embedded in a fabric of Vietnamese nationalism, leading ethnic minority youth, consciously and unconsciously, to enact nationalism through their everyday styles of being young.     

CHARACTERIZATION AND PROVENANCE OF LATE ANTIQUE WINDOW GLASS FROM THE PETRA CHURCH IN JORDAN*

Fifth‐ to seventh‐century window glass fragments from the Petra Church in Jordan were analysed by EPMA and spectrophotometry to characterize their optical properties and chemical composition. The objective of this study was to determine the provenance of the raw glass and the secondary production procedures of the window‐panes. Judging from the material evidence, both the crown window‐panes and possibly the rectangular samples were produced through glass‐blowing techniques. The chemical data show that the assemblage forms a homogeneous group of soda–lime–silica glass of the Levantine I type. The green glass, however, has higher silica and lower soda contents than the aqua‐blue fragments. The composition of one sample suggested the recycling of Roman glass. Our results confirm the trade of glass between the Levantine coast and Petra during Late Antiquity. No colouring agents other than iron were detected. Spectrophotometry confirmed the presence of iron and showed that the window fragments absorbed light relatively equally across the visible part of the spectrum. The windows thus seem to have provided an almost colourless illumination for the sacred interior.