Propagating Rift Hypothesis
New hull-mounted Simrad EM122 multibeam echo sounder bathymetry collected on R/V Marcus G. Langseth in 2013, combined with British Simrad EM12 multibeam data (Keeton et al., 1997) along and east of the axis north of the Percivale FZ, surrounded by predicted bathymetry from Smith and Sandwell (1997). Heavy white step-like transform-eliminating reorganization boundaries based on FZ terminations, dashed where they extend from the youngest Pendragon FZ terminations to the Morganore FZ terminations, dashed-dot lines north of Pendragon are E scarps from previous figure. FZs are thin white lines, NTO wakes are dotted white lines. Thick white dashed lines are simplified spreading axes.
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