Supplementary Materials - videos - for 'The root to the Galápagos mantle plume on the core-mantle boundary' by Cottaar et al.

<p>Movie S1.</p> <p>Animation of interaction between the wavefront and the ultra-low velocity zone for Event A&nbsp;using a modified version of the wavefront tracker by&nbsp;(Hauser&nbsp;<em>et al.</em>, 2008). Only horizontal propagation is considered. Event location - blue star, seismometer locations &ndash; blue triangles.&nbsp;Velocities show the shear wave velocity deviations at 2800 km depth from the tomographic SEMUCB-WM1&nbsp;(French and Romanowicz, 2014)&nbsp;&nbsp;and the ultra-low velocity zone.&nbsp;</p> <p>&nbsp;</p> <p>Movie S2.</p> <p>Animation of interaction between the wavefront and the ultra-low velocity zone for Event B&nbsp;using a modified version of the wavefront tracker by&nbsp;(Hauser&nbsp;<em>et al.</em>, 2008). Only horizontal propagation is considered. Event location - blue star, seismometer locations &ndash; blue triangles.&nbsp;Velocities show the shear wave velocity deviations at 2800 km depth from the tomographic SEMUCB-WM1&nbsp;(French and Romanowicz, 2014)&nbsp;and the ultra-low velocity zone.&nbsp;</p> <p>&nbsp;</p> <p>Movie S3.</p> <p>Animation of interaction between the wavefront and the ultra-low velocity zone for Event C&nbsp;using a modified version of the wavefront tracker by&nbsp;(Hauser&nbsp;<em>et al.</em>, 2008). Only horizontal propagation is considered. Event location - blue star, seismometer locations &ndash; blue triangles.&nbsp;Velocities show the shear wave velocity deviations at 2800 km depth from the tomographic SEMUCB-WM1&nbsp;(French and Romanowicz, 2014)&nbsp;and the ultra-low velocity zone.&nbsp;</p> <p>&nbsp;</p> <p>Movie S4.</p> <p>Animation of interaction between the wavefront and the ultra-low velocity zone for Event D&nbsp;using a modified version of the wavefront tracker by&nbsp;(Hauser&nbsp;<em>et al.</em>, 2008). Only horizontal propagation is considered. Event location - blue star, seismometer locations &ndash; blue triangles.&nbsp;Velocities show the shear wave velocity deviations at 2800 km depth from the tomographic SEMUCB-WM1&nbsp;(French and Romanowicz, 2014)&nbsp;and the ultra-low velocity zone.&nbsp;</p>