Table T1. Shipboard age determinations used to calculate sedimentation rates.

Age
(Ma)
Depth (mbsf)
Depth (mcd)
Code
Event abbreviation
Event/Zone/Chron
Sedimentation rates (cm/k.y.)
0.26 5.75 5.75 CN FO E. huxleyi 2.21
0.42 12.35 14.15 DIAT BOT T. lentiginosa Subzone b 5.25
0.46 14.55 16.3 CN LO P. lacunosa 5.38
0.65 15.43 18.3 DIAT TOP A. ingens Subzone c 1.05
0.78 18.6 24.89 PMAG BOT C1n (Brunhes) 5.07
0.88 27 29.51 CN LO R. asanoi 4.62
0.99 25 31.31 PMAG TOP C1r.1n (Jaramillo) 1.64
1.07 28.05 35.23 PMAG BOT C1r.1n (Jaramillo) 4.90
1.08 32.78 35.84 CN FO R. asanoi 6.10
1.24 33.53 37.14 CN LO Geph. large (>5.5 µm) 0.81
1.46 36.71 40.01 CN FO Geph. large (>5.5 µm) 1.30
1.60 39.65 42.81 CN LO C. macintyrei 2.00
1.77 35.65 43.7 PMAG TOP C2n (Olduvai) 0.52
1.80 41.45 44.91 DIAT TOP P. barboi Zone 4.03
1.95 37.9 45.95 PMAG BOT C2n (Olduvai) 0.69
2.00 39.8 47.97 DIAT TOP T. kolbei-F. matuyamae Z. 4.04
2.58 46.9 54.72 PMAG BOT C2r (Matuyama) 1.16
2.80 50.37 55.38 DIAT TOP T. insigna Subzone a 0.30
3.26 54.15 62.32 DIAT TOP F. interfrigidara Zone 1.51
3.80 63.9 67.46 DIAT BOT F. interfrigidara Zone 0.95
19.00 85.15 95.29 DIAT LO T. spumellaroides hiatus
20.90 101.9 111.41 DIAT BOT T. fraga Zone 0.85
22.60 116.9 126.51 DIAT BOT T. spumellaroides Zone 0.89
25.50 150.56 157.63 DIAT LO R. vigilans 1.07
26.50 174.9 182.59 DIAT BOT R. gelida Zone 2.50
31.30 213.9 221.2 CN LO R. umbilica 0.80
31.80 214.08 221.93 CN LO I. recurvus 0.15
33.30 221.1 232.06 CN Acme Clausicoccus spp. 0.68
34.20 250.1 262.09 CN LO D. saipanensis 3.34
36.00 289.5 301.49 CN FO I. recurvus 2.19
38.00 349.12 361.11 CN FO R. bisecta 2.98
43.10 372.58 384.57 CN LO Nannotetrina spp. 0.46

Notes: Code abbreviations: DIAT = diatom, CN = calcareous nannofossil, PMAG = magnetic polarity, RAD = radiolarians. Event abbreviations: FO = first occurrence, LO = last occurrence, RE = reentrance, TOP = top of zone, BOT = bottom of zone. Shipboard age determinations taken from Gersonde, Hodell, Blum, et al., 1999.