Table T3. Velocity changes applied to the Site 1166 and 742 impedance logs to match the synthetic seismograms directly to the seismic profiles.
Lithostratigraphic unit
Logging unit
Lower
boundary
(mbsf)
Two-way
traveltime to
base of unit
(s)
Modified
two-way
traveltime to
base of unit
(s)
Change in
original
velocity
(fraction)
AGSO line (Site 1166)



IB 2a 112.07 0.1076 0.1098 0.98
IC 2b 125.03 0.121 0.1239 0.95
ID 2c 142.1 0.1344 0.138 0.95
II 3 163.13 0.1565 0.1625 0.9
III 4a 194.07 0.183 0.1871 1.08
III 4b 273.01 0.245 0.2445 1.08
IV-V (TD) 5 (TD) 366.89 0.3297 0.3355 0.93
Palmer line (Site 1166)



IB 2a 112.07 0.1076 0.1132 0.95
IC 2b 125.03 0.121 0.1248 1.15
ID 2c 142.1 0.1344 0.1365 1.15
II 3 163.13 0.1565 0.1627 0.84
III 4a 194.07 0.183 0.1831 1.3
III 4b 273.01 0.245 0.239 1.11
IV-V (TD) 5 (TD) 366.89 0.3297 0.3237 1
Palmer line (Site 742)



I + II
120.4 0.1115 0.1062 1.05
III
138.99 0.1301 0.1239 1.05
IV
172.67 0.1573 0.1519 0.97
V (TD)
269.9 0.2409 0.2315 1.05

Notes: TD = total depth. For Site 1166, these changes are too large to be realistic.