Extended Data Fig. 4: Three-dimensional perspective view showing the sediment lens geometry.
From: Slow slip along the Hikurangi margin linked to fluid-rich sediments trailing subducting seamounts
This view looks north and shows the seismic data volume with the sediment lens (light shading) updip from the Pāpaku seamount. The Pāpaku sediment lens formed in the wake of the subducting Pāpaku seamount. The yellow surface is the Pāpaku fault, which forms a lateral ramp that intersects the décollement in an arcuate pattern. It extends farthest downdip above the Pāpaku seamount peak. The sediment lens beneath the Pāpaku fault fills in the space updip from the Pāpaku seamount. The peak of the Pāpaku seamount lies directly updip from the thickest section of the sediment lens, which thins to the SW updip of the flank of the Pāpaku seamount. A second sediment lens lies beneath Tuaheni ridge and is believed to have formed from an older subducted seamount.
