Figure 3
From: Evidence for frozen melts in the mid-lithosphere detected from active-source seismic data
Results of traveltime analyses and preferred velocity model for oceanic MLD. (a) Ray tracing based on traveltime picks of DR1. The background velocity model was used to determine reflection traveltime picks. The traveltime picks and calculated arrivals are shown in Supplementary Fig. S1. Magnetic anomaly numbers (M20–M1) are shown along the top of the profile. (b) P-wave velocity model for each reflector (oceanic MLD) with a gradual velocity change (maximum ~7% decrease). Based on our ray tracing, we placed the low-velocity structure on observed reflection points, and then calculated synthetic waveforms (Fig. 2). Waveform calculation tests with other velocity models are shown in Supplementary Figs S2 and S3.
