A New Look at Bjurselet. The Neolithic Flint Axe Caches from Västerbotten, Sweden using non-destructive energy dispersive x-ray fluorescence analysis for provenance determination

Because of the inexact nature of visual classification schemes and the resulting uncertainties of specifying raw material origins, geochemical methods applicable for sourcing Scandinavian flint have been sought. The authors have shown that EDXRF analysis yields geochemical data sufficiently precise...

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Bibliographic Details
Main Authors: Olausson, Deborah, Hughes, Richard, Högberg, Anders
Format: Article in Journal/Newspaper
Language:English
Published: Wiley-Blackwell 2012
Subjects:
Online Access:https://lup.lub.lu.se/record/3412402
Description
Summary:Because of the inexact nature of visual classification schemes and the resulting uncertainties of specifying raw material origins, geochemical methods applicable for sourcing Scandinavian flint have been sought. The authors have shown that EDXRF analysis yields geochemical data sufficiently precise and accurate to discriminate among many different varieties of archaeologically significant flint. However, these results are based on geologic specimens, most of which were culled fresh from in situ deposits. The goal of the present article was to determine if EDXRF analysis could yield meaningful results when applied to archaeological specimens. The Middle Neolithic flint objects discovered in the province of Västerbotten in northern Sweden, some 1500 kilometers distant from any flint sources, were deemed to be a suitable archaeological case study. Results from the Bjurselet analyses suggest that light patination does not appear to seriously compromise the geochemical results, at least for the elements tested here. Although EDXRF data alone were not sufficient for pinpointing the exact place of origin for the flint at Bjurselet, the results confirmed conclusions based on other kinds of evidence. The results provide an incentive to build up a more comprehensive geochemical library for further provenance work.