Figure 2. Magnetic-anomaly base map for the Leg 168 study area with locations of drill sites assigned to the Hydrothermal Transition, Buried Basement, and Rough Basement Transects (after Shipboard Scientific Party, 1997c). Positive anomalies are shaded, and ages of magnetic polarity transitions are given in Ma. See Figure 1 for regional context of study area.

Figure 2. Magnetic-anomaly base map for the Leg 168 study area with locations of drill sites assigned to the Hydrothermal Transition, Buried Basement, and Rough Basement Transects (after Shipboard Scientific Party, 1997c). Positive anomalies are shaded, and ages of magnetic polarity transitions are given in Ma. See Figure 1 for regional context of study area.