Figure 4 (continued). C. Downhole log data from Hole 997B. Data shown include the natural gamma-ray log from the NGT, bulk-density data from the HLDT, acoustic velocity data from the LSS-SDT, and deep-reading electrical resistivity data from the DITE. Also shown are the depths of logging Units 1, 2, and 3 (Table 2) and the projected Ro baseline.