Republication from phys.org/
British-developed bronze flat-axe from Selchausdal, northwest Zealand (NM B5310, photo: Nørgaard). The 20-cm-long axe has a geometric decoration covering the surface. Low-impurity copper is alloyed with 10% Sn. Scandinavia holds the largest proportion of British type axes outside the British Isles 2000-1700 BC. Credit: Heide W. Nørgaard (2019)
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The geographic origins of the metals in Scandinavian mixed-metal artifacts reveal a crucial dependency on British and continental European trading sources during the beginnings of the Nordic Bronze Age, according to a study published July 24, 2019 in the open-access journal PLOS ONE by Heide W. Nørgaard from Aarhus University, Denmark, and colleagues.