Table T1. Two-way traveltimes (TWTs) for the seafloor, 865 mbsf, and the upper sill for each of the interpretations shown in Figure F10.

Table T1. Two-way traveltimes (TWTs) for the seafloor, 865 mbsf, and the upper sill for each of the interpretations shown in Figure F10.


	MCS model	Interpretation 1	Interpretation 2	Interpretation 3
TWT of synthetic reflection linked to 865 mbsf		7.02 s	6.98 s	7.045 s
TWT between seafloor and reflection linked to 865 mbsf		0.98 s	0.94 s	1.05 s
Average velocity between seafloor and 865 mbsf	1839 m/s	1765 m/s	1840 m/s	1648 m/s
Difference between MCS model and inferred velocity for the layer between seafloor and 865 mbsf		74 m/s	1 m/s	191 m/s
TWT of synthetic reflection linked to upper sill		7.625 s	7.625 s	7.625 s
TWT synthetic reflection linked to 865 mbsf and reflection linked to upper sill		0.605 s	0.645 s	0.58 s
Average velocity between 865 mbsf and U reflection/upper sill	2508 m/s	2473 m/s	2319 m/s	2579 m/s
Difference between MCS model and inferred velocity for the layer between 865 mbsf and upper sill		35 m/s	189 m/s	71 m/s

Notes: Average velocities for the layers defined by these horizons are calculated from multichannel seismic (MCS) data and implied by each of the interpretations. Differences between velocities are derived from the interpretations and those from MCS data.