Stonehenge rhyolitic bluestone sources and the application of zircon chemistry as a new tool for provenancing rhyolitic lithics

The source of the bluestones at Stonehenge has long been debated, and while there is general consensus that the so-called spotted dolerites are derived from a relatively small number of outcrops exposed in the highest parts of Mynydd Preseli, in southwest Wales the source of the rhyolitic component has attracted relatively little detailed attention. This is largely because unlike the uniqueness of the spots in the coarser grained doleritic rocks, the rhyolites are fine-grained in character and lack any obvious distinctiveness, especially in hand specimen. This makes their provenancing difficult. A recent study, however, suggested that there was a close lithological similarity between the informally-termed ‘rhyolite with fabric’ bluestone component and rhyolitic rocks from the Ordovician Fishguard Volcanic Group exposed in the Pont Saeson area of north Pembrokeshire. This study aims to see if the chemistry of zircons, which are present in both sets of samples, could be used to support the petrographical association. Analyses for certain high field strength elements (including the rare earth elements) obtained by LA-ICP-MS showed that indeed the analyses were nearly identical when compared using a range of statistical approaches, including similarity coefficients, statistical distance, and principal component analysis, while showing clear differences to sample sets which had no reason to be correlated with the Pont Saeson samples. There are two important conclusions arising from this study. Firstly, the identification of the Pont Saeson source of the ‘rhyolite with fabric’ bluestone from outcrops in low ground to the north of the Mynydd Preseli will without doubt lead to fresh debates about the mechanisms of transport of this component of the bluestones to the Stonehenge site. Secondly, the chemistry of zircons may well prove to have a wider application in the provenancing of fine-grained rhyolitic rocks which have an archaeological context.     

Rethinking Mississippian copper symbol badges: two previously unreported examples from east Alabama

ABSTRACT

Traditional interpretation of Mississippian copper symbol badges is that they were prestige items associated with both inherited and earned status. In this article we review the current state of knowledge regarding copper symbol badges, introduce two previously unreported examples from the Big Tallassee (1MC1) and Abercrombie (1RU61) sites, and propose a new interpretation for the circulation and disposition of copper symbol badges during the Mississippian and Protohistoric periods. We argue that these objects were initially incorporated into headdresses (worn in both life and death) at major Mississippian towns and then were later transformed into inalienable possessions associated with particular beings, people, or places as large polities collapsed and new political entities were formed.     

Bring Me Three Large Beers: Wooden Tankards at Roman Vindolanda

This paper presents, and places in context, two tankard staves and part of a lathe‐turned tankard base, all made from yew wood (Taxus baccata), identified as part of a review of over 1500 wooden small finds from the Roman fort of Vindolanda. These were originally part of large, skilfully produced, communal drinking vessels of a type that has recently been the subject of a major review. Wooden tankards of this type are currently considered to be at their earliest a Late Iron Age phenomenon but one which extends well into the Roman period and which has, so far, been recognized predominantly within Britain. The three elements, found at Vindolanda, must have derived from three separate vessels and come from different periods within the site. This paper explores, adds to and amplifies current thinking on the construction, use and discard of these vessels and, in particular, considers how the tankards were perceived within the context of a Roman fort.