Fig. 5. Geologic map of Chalk Cove fault study site in map view, illustrating main fault trace and hanging-wall fracture systems. Detailed fracture mapping areas of Fig. 6 and 7 are shaded in gray. Transect CCHW1 is downsection and Transect CC2/CC3 is upsection (see Fig. 4). Red shading and traces represent fault core gouge, small slip surfaces, or iron-oxide stained zones. Sample locations are identified.