This study deals with the site, Tanum 1821:1, Tanum kommun, Västra Götalands län, Sverige (figure 1), where a number of soil samples have been collected in connection to a settlement with a preliminary dating to the Bronze Age. The site consisted of 11 hearths, 10 cooking pits, 1 cultural layer, 18 concentrations of fire-cracked stones, 3 post holes, 5 settlement pits and 9 other settlement features. The site had an extent of approximately 130 x 60 meters (E-W). The samples were collected in connection with an excavation conducted by Rio Kulturkooperativ.
The bedrock in the area consists of granite. Till is the dominating soil type in the area with thin quaternary deposits further to the east. The site is situated approximately 65-70 m.a.s.l near a small river, the vegetation consists of mainly spruce with sporadic birches.