Table T1. Summary of laboratory consolidation results.
Hole, core, section,
interval (cm)
Test
device
Depth
Initial
sample
void ratio
Specific
gravity
(Gs)
Lith.
unit
Age
Description
In situ ´
(kPa)
Pc´
(kPa)
OCR
Cc
Cr
eo
Pc´ – ´
OCRm
(mbsf)
(mcd)
(kPa)
(m)*
207-
1257C-1R-2, 140 LT 84.90 84.90 1.87 2.70 IIB early Oligocene–early Eocene Siliceous nannofossil chalk with foraminifers 490 2000 4.08 1.03 0.04 5.18 1510 246
1257C-6R-3, 140 LT 134.50 135.70 0.97 2.63 IIIA late–middle Paleocene Nannofossil chalk, foram nannofossil chalk 850 1850 2.18 0.36 0.08 1.97 1000 163
1257C-13R-1, 130 LT 198.60 201.15 1.78 2.33 IV Cretaceous Black shale 1330 1850 1.39 1.01 0.07 4.91 520 85 0.72
1257C-16R-5, 135 LT 233.55 234.71 0.74 2.79 V middle–late Albian Silty calcareous claystone 1575 550 0.35 0.29 0.08 1.48 –1025 –167 0.19
1258B-36R-2, 8 LA 331.68 344.49 1.12 2.70 III Maastrichtian Nannofossil chalk with forams 2575 2750 1.07 0.70 0.12 3.37 175 28
1258B-45R-4, 45 LA 401.21 422.04 1.20 2.35 IV Cretaceous Black shale 3240 1250 0.39 0.45 0.05 2.53 –1990 –324
1259A-3R-5, 127 LT 25.57 25.57 2.20 2.74 IA early Miocene, slumped Oligocene Foram nannofossil ooze 140 450 3.21 0.88 0.09 4.08 310 50
1261A-4R-2, 90 LT 72.10 72.10 1.48 2.78 IB middle Pliocene–late Miocene Nannofossil clay 450 250 0.56 0.67 0.12 2.94 –200 –33
1261A-4R-2, 90 B LA 72.10 72.10 1.60 2.78 IB middle Pliocene–late Miocene Nannofossil clay 450

0.83 0.18 3.54


1261A-6R-6, 134 LA 197.95 197.95 1.19 2.70 IB middle Pliocene–late Miocene Nannofossil clay 1400 1550 1.11 0.80 0.18 3.54 150 24
1261A-9R-5, 139 LA 263.59 263.59 1.16 2.68 IB middle Pliocene–late Miocene Nannofossil clay 1935 2600 1.34 0.76 0.17 3.42 665 108
1261A-13R-4, 140 LT 300.60 300.60 1.04 2.50 IB middle Pliocene–late Miocene Nannofossil clay 2245 2400 1.07 0.58 0.12 2.78 155 25
1261A-20R-1, 140 LT 363.50 363.50 0.99 2.73 IC late Miocene Clayey nannofossil ooze 2775 2900 1.05 0.26 0.03 1.81 125 20

Notes: Lith. = lithostratigraphic. * = assuming mean density of 1.65 g/cm3. LT = Geocomp Loadtrack testing apparatus, LA = lever arm testing apparatus. ´ = effective stress, Pc´ = preconsolidation pressure, OCR = overconsolidation ratio, Cc = compression index, Cr = recompression index, eo = initial void ratio, OCRm = modified OCR.