|
Sample
|
Age (Ma)
|
Latitude
|
Longitude
(°W)
|
Water depth (m)
|
Sediment MAR (g/cm2 x k.y.)
|
|||
|---|---|---|---|---|---|---|---|---|
|
Bulk measured
|
Bio-Ba measured
|
Corg measured
|
Corg estimated
from Ba model |
|||||
| Site C (equator) | 0 | 1.0°N | 139 | 4445 | 848 (23% of rain) | 1.4 (30% of rain) | 2.6 (2% of rain) | — |
| Site S | 0 | 11.1°N | 140.1 | 4620 | 32 (3% of rain) | 0.6 (30% of rain) | 0.15 (<1% of rain) | — |
| Leg 199 |
|
|
|
|
|
|
|
|
| Site 1218 (equator)* | 38–43 | 0 ± 0.4 | 105–108 |
|
576 ± 330 | 2.1 ± 0.93 | 0.30 ± 0.30 | 2.0 ± 0.88 |
| Site 1218 (equator)† | 41.1–41.4 | 0.15°S | 106 | 3160 | 2000 ± 270 | 5.6 ± 1.6 (8.3 max) | 0.26 ± 0.12 (0.63 max) | 5.3 ± 1.6 (7.8 max) |
| Site 1218 | 20–38 | 0.4°–3.5°N | 108–120 |
|
1120 ± 490 | 1.65 ± 0.62 | 0.11 ± 0.11 | 1.6 ± 0.6 |
| Site 1218 | 0–18 | 4°–9°N | 121–135 |
|
80 ± 50 | 0.51 ± 0.57 | ND | 0.48 ± 0.54 |
| Hole 1219A | 36–49 | 1.2°–3.6°S | 109–116 |
|
213 ± 92 | 1.40 ± 0.52 | 0.08 ± 0.06 | 1.4 ± 0.5 |
| Hole 1219A (equator)† | 41.2–41.5 | 2°S | 112 | 3960 | 937 ± 190 | 4.60 ± 0.34 | 0.28 ± 0.06 | 4.5 ± 0.3 |
| Hole 1219A (equator)* | 25–34 | 0 ± 1° | 117–123 |
|
1220 ± 500 | 1.88 ± 0.68 | 0.21 ± 0.25 | 1.84 ± 0.66 |
| Hole 1219A | 1–18 | 2.5°–7°N | 128–141 |
|
60 ± 24 | 0.22 ± 0.14 | ND | 0.22 ± 0.14 |
Sample
Rain flux (mg/cm2 x k.y.)
Bio-Ba rain
Corg rain via measured Corg
Corg rain via estimated Corg
Bulk rain
Site C (equator)
3701
4.8
130
Site S
1030
2.0
30
Leg 199
Site 1218 (equator)*
2500
7
15
100
Site 1218 (equator)†
8700
28 max
32 max
400 max
Site 1218
4900
6
6
80
Site 1218
2700
2
ND
<48
Hole 1219A
930
5
4
70
Hole 1219A (equator)†
4000
15
14
225
Hole 1219A (equator)*
5300
6
10
92
Hole 1219A
2000
1
ND
22
Notes: Data for Site S and Site C from Dymond and Lyle (1994) and Dymond et al. (1992). Their terminology for "rain" is "export flux." Estimated Corg values calculated from measured Ba in Leg 199 sediments and Ba/Corg ratios of modern surface sediments beneath upwelling regions (see text for full discussion). Rain flux estimated from sediment MARs except sites C and S (actual trap measurements). * = data excludes maxima at 41 Ma. † = maxima at 41 Ma. MAR = mass accumulation rate.