“…Vigliotti et al (2003) show that magnetic susceptibility, as well as other magnetic properties of marine sediment west of Elba Island, are enriched in layers dating to the ancient smelting period on Elba. Mighall, Foster, Crew, Chapman, and Finn (2009) conclude that magnetic susceptibility helps to detect ore remains and furnace dust (at least in peat records); i.a., Powell, McDonnell, Batt, and Vernon (2008) and Birch, Scholger, Walach, Stremke, and Cech (2015) state that a magnetic susceptibility is a valuable tool for identifying iron smelting activities on sites. Because of the more pronounced pattern of As in corelogging data compared to homogenized samples of the <2 mm sieve separate, we assume that the enrichment of arsenic is mainly related to the presence of (coarse) slag fragments (cf.…”