Figure F88. Stepwise AF demagnetization up to 60 mT at 72.5 cm of the archive half of Section 183-1139A-69R-2 from basement Unit 17. The magnetization has a MDF of 10 mT and a single-component magnetization as is evident by the straight lines in the orthogonal vector projections. J₀ is the magnetization intensity before AF treatment.