Figure F13. AF demagnetization of discrete Sample 178-1103A-27R-1, 13-15 cm. A. Orthogonal projection of the end-points of the remanence vector. Open and solid symbols represent the vertical and horizontal projections, respectively. The steeply inclined drill-string overprint was removed after AF demagnetization at 10 mT. B. Enlarged view of boxed region in A. After removal of the drill-string overprint at 10 mT, the intensity of this sample is in the noise level of the magnetometer. C. Change in the intensity of remanence during AF demagnetization. D. Equal-area projection of the remanence vector during AF demagnetization. No stable direction can be obtained from this sample.