IODP Expedition 344: Costa Rica Seismogenesis Project (CRISP-A2)
Figure 8

Downhole log images obtained in Hole U1414A.  FMS = Formation MicroScanner, UBI = Ultrasonic Borehole Imager.  The partially overlapping tracks in the FMS images were collected in two logging passes.  The thin borehole enlargement at 375 mbsf marks the transition from compacted sediments above to basalt below.