Extended Data Fig. 5: Perspective view showing the sediment lens beneath the Pāpaku fault and underlying basement seismic velocities.
From: Slow slip along the Hikurangi margin linked to fluid-rich sediments trailing subducting seamounts
Light shading shows the geometry of the sediment lens beneath the Pāpaku fault. The colored surface lies 500 m below the top of the subducting basement (red line) and shows the average velocity within the uppermost 500 m of subducting basement. Basement velocities are consistently lower beneath the sediment lens associated with the Pāpaku seamount than regions outside of the influence of the sediment lens to the southwest. This correlation suggests that the sediment lens inhibits drainage from beneath it.
