Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden
Jamie L. Weaver, Scott A. Wight, Carolyn Pearce, John McCloy, Thomas Lam, Rolf Sjoblom, David Peeler, Michael Schweiger, Albert Kruger, Scott Whittaker, Edward Vicenzi
Numerous Iron Age hillforts were constructed throughout Europe on high ground to serve ancient settlements. The edifice walls of a small fraction of hillforts were vitrified as a result of high temperature activity, most likely to reinforce the walls. Swedish hillfort glasses from the Broborg site near Uppsala, Sweden have recently been proposed as an analogue material to inform long term nuclear waste storage. As part of that effort, a fragment of the Broborg hillfort wall was embedded and polished prior to examination by x-ray methodologies to determine its composition and microstructure.