Figure F22. Plots of natural remanent magnetization (NRM) after alternating field (AF) demagnetization to 80 mT. A. Sample 347-M0063D-7H-2, 43 cm; 13.29 mbsf (15.25 mcd). B. Sample 347-M0063D-14H-1, 53 cm; 25.53 mbsf (27.27 mcd). C. Sample 347-M0063D-23H-2, 12 cm; 44.62 mbsf (45.48 mcd). D. Sample 347-M0063D-40H-1, 123 cm; 81.43 mbsf (85.09 mcd). Categories 1, 2, and 4 contain a vector that trends toward the origin during demagnetization. The Category 3 vector veers into a plane perpendicular to the last demagnetization axis, which is a sign of gyroremanent magnetization acquisition. Open squares = vertical, solid squares = horizontal.
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