Figure F51. Low-field volume-normalized (bulk) magnetic susceptibility, Koenigsberger ratio, median destructive field (MDF), and the ratio of the vector difference between steps of progressive AF demagnetization (

Figure F51. Low-field volume-normalized (bulk) magnetic susceptibility, Koenigsberger ratio, median destructive field (MDF), and the ratio of the vector difference between steps of progressive AF demagnetization (

RM) = [(RM₀ - RM₅)/(RM₂₀ - RM₅₀)] vs. depth for Hole 1206A samples. RM₀ - RM₅ = the vector difference between the untreated NRM and NRM after demagnetization at 5 mT, RM₂₀ - RM₅₀ = the difference between the NRM after 20-mT treatment and NRM after 50-mT treatment. Open circles = lava flow samples, solid circles = volcaniclastic samples. TD = total depth.