Figure 28: XY plot demonstrating the difference between increased magnetic responses interpreted as probable SFBs or cut archaeological features, ferrous sources and geology. Each trace represents data collected along an east–west traverse (with coloured amplitude scale for clarity). The continuous 'background texture' of the geology running NW-SE dominates the sample area (several of these trends are identified by arrows); ferrous responses are present, both from individual discrete sources and the backfill of a previous excavation trench. The inset contains SFB signatures (two are ringed) for comparison
Figure 28

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