Figure F2. Single-channel seismic profile collected on the transit to Site 1173. Location of seismic profile is shown in Figure F1. A single 80-in³ water gun was used. Processing includes despiking, notch filtering (60 Hz), bandpass filtering (10-80 Hz), three-trace mix, F-K migration (constant velocity at 1550 m/s), bandpass filtering (10-80 Hz) three-trace mix, automatic gain control (500 ms), and mute to water bottom. (This figure is also available in an oversized format along with Fig. F1 for reference.)