Figure F16. Equal-area lower-hemisphere stereographic projections of fractures related to prism faults in the interval 200-525 mbsf after paleomagnetic reorientation. A. Representative planes for the entire interval. The bold great circle labeled 1 represents narrow fractures that are axial-planar to small asymmetric folds in the fault zone at 306 mbsf (the base of the deformation band domain), and the circle labeled 2 represents the main fracture set in the same horizon. These southeast dips suggest the fault may be a prism backthrust. Note the similarity in orientation of the axial-planar fractures with the southeast-dipping set of deformation bands shown in Figure F14D. B. Poles to the planes shown in A. C. Slickensided surfaces from the fault zone at 504 mbsf, thought to be part of a northwest-dipping protothrust.