Figure F25. A. Vector end-point diagram for a sample from within Cryptochron 4r.2r-1 that illustrates a primary normal polarity direction after removal of the drill-string overprint (Sample 178-1095B-34X-2, 120 cm [400 mbsf]). B. Enlarged view of the boxed region from A. C. Change in the intensity of remanence during AF demagnetization. D. Equal-area projection of the remanence vector during AF demagnetization.