Table T2. Summary of reflector sequence and age from the Pearl River Mouth Basin (Ludmann and Wong, 1999 [L&W]) and the observed sequence of reflectors at the Leg 184 sites.

From L&W
Site 1143
Site 1144
Site 1145
Site 1146
Site 1148
Reflectors
equence
Epoch Age
(Ma)

TWT
(s)
Depth
(mcd)
Age
(Ma)

TWT
(s)
Depth
(mcd)
Age
(Ma)

TWT
(s)
Depth
(mcd)
Age
(Ma)

TWT
(s)
Depth
(mcd)
Age
(Ma)

TWT
(s)
Depth
(mcd)
Age
(Ma)
T0 Pleistocene 0.45




0.47 370 0.715
0.12 85 0.6







T0´ Pliocene/Pleistocene 1.85




0.75 610* 1.23*
0.21 160 1.87
0.2 155 1.36



T1 Miocene/Pliocene 5.2
0.27 210 5.2












0.20 175 4.4
T2 middle/upper Miocene 10.2
0.55 460 9.1








0.5 430 9.8



T4 lower/middle Miocene 14
0.67 560* 11.3*



















0.95 820* 17.0*




1.0 760* 17*







T5 Oligocene/Miocene 25.2












0.77 700* 20.9*
0.52 450 22.6
















0.8 740* 22.2*



T7 lower Oligocene 32












1.0 950* 29.2*
0.85 790 31.5




















0.90 840 31.8

Notes: TWT = two-way traveltime in seconds. Reflector T5 is adopted from Chen et al. (1987), as given in table 1 of L&W. We indicate the approximate correlation of Leg 184 reflectors with the L&W sequence. However, in a number of sites (especially Sites 1146 and 1148), we find multiple reflectors over an age interval that roughly correlates with the L&W reflector chronology. * indicates that the estimates of depth and age are derived from downward continuation of the velocity and linear sedimentation rate structure from the base of the cored section. Hence, these estimated values are approximate at best.