
Figure F8.
Resistivity-at-the-bit image of Hole 808I showing all interpreted fractures.
Fractures are separated into conductive (blue) and resistive (red) fractures.
Tadpoles show fractures as dip direction with respect to north and dip
(0°-90°). Deformation intensifies significantly at the frontal thrust (389-414
mbsf), a fractured interval correlated with Leg 131 Site 808 core analysis
(559-574 mbsf), and the décollement zone (~950 mbsf). The interval of
continuous strong borehole breakouts is labeled between ~270 and ~530 mbsf,
coincident with log Unit 2 and bracketing the frontal thrust zone. Fracture
orientations are dominantly northeast-southwest (northwest-southeast dip
directions) within the frontal thrust zone and 560-mbsf fractured interval but
are more variably oriented with depth. A north-south fracture orientation
(east-west dip direction) is dominant within the décollement zone.

