Introduction
Although a few geophysical research projects have been successfully conducted in Iceland (Horsley & Dockrill, 2002; Wunderlich et al., 2015; Wilken et al., 2016; Damiata et al., 2017; Gabler et al., 2023), it is still deemed challenging to carry out geophysical prospection there. As the bedrock comprises mostly igneous rocks, considerable background noise can be expected to impair the results, especially for magnetic survey. Another problem is posed by the archaeological remains themselves. Viking Age structures are usually made of turf, which was often extracted locally. The contrast between the structures and the surrounding soil is thus subtle, if existing at all. Foundation stones enhance the detectability of turf structures (Coolen & Mehler, 2015; Wunderlich et al., 2015; Damiata et al., 2017), however stones were rarely used during the Viking Age (Wunderlich et a...


