Pearson, Paul N; Palmer, Martin R (1999): (Table 1) Boron-isotope measurements of foraminifera of ODP Hole 143-865C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.769847, Supplement to: Pearson, PN; Palmer, MR (1999): Middle Eocene Seawater pH and Atmospheric Carbon Dioxide Concentrations. Science, 284(5421), 1824-1826, https://doi.org/10.1126/science.284.5421.1824
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Abstract:
The carbon dioxide content of the atmosphere [measured as the partial pressure of CO2 (pCO2)] affects the content of the surface ocean, which in turn affects seawater pH. The boron isotope composition (d11B) of contemporaneous planktonic foraminifera that calcified their tests at different water depths can be used to reconstruct the pH-depth profile of ancient seawater. Construction of a pH profile for the middle Eocene tropical Pacific Ocean shows that atmospheric pCO2 was probably similar to modern concentrations or slightly higher.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 18.440400 * Longitude: -179.555000
Date/Time Start: 1992-04-04T01:30:00 * Date/Time End: 1992-04-04T14:15:00
Minimum Elevation: -1528.0 m * Maximum Elevation: -1528.0 m
Event(s):
143-865C * Latitude: 18.440400 * Longitude: -179.555000 * Date/Time Start: 1992-04-04T01:30:00 * Date/Time End: 1992-04-04T14:15:00 * Elevation: -1528.0 m * Penetration: 136.3 m * Recovery: 114.11 m * Location: North Pacific Ocean * Campaign: Leg143 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 136.3 m cored; 0 m drilled; 83.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Pearson, Paul N | DSDP/ODP/IODP sample designation | ||
| 2 | Species | Species | Pearson, Paul N | |||
| 3 | Size | Size | Pearson, Paul N | in µm | ||
| 4 | δ11B | δ11B | ‰ SRM | Pearson, Paul N | ||
| 5 | δ11B, standard deviation | δ11B std dev | ± | Pearson, Paul N | 2 sigma | |
| 6 | Comment | Comment | Pearson, Paul N |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
168 data points
Data
| 1 Sample label | 2 Species | 3 Size | 4 δ11B [‰ SRM] | 5 δ11B std dev [±] | 6 Comment |
|---|---|---|---|---|---|
| 143-865C-6H-2,65-67 | Morozovella spinulosa | 300-425 | 26.6 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Morozovella spinulosa | 300-425 | 26.2 | 0.3 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Acarinina matthewsae | 355-500 | 25.8 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Acarinina matthewsae | 355-500 | 25.4 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Acarinina topilensis | 355-550 | 25.3 | 0.3 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Acarinina topilensis | 355-550 | 24.9 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Morozovella crassata | 300-500 | 23.2 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Morozovella crassata | 300-500 | 22.6 | 0.4 | mixed layer, 0-100 m |
| 143-865C-6H-2,65-67 | Globigerinatheka index | 425-500 | 23.4 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Globigerinatheka index | 425-500 | 23.1 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Globigerinatheka mexicana | 425-500 | 23.3 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Globigerinatheka mexicana | 425-500 | 23.0 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Globigerinatheka senni | 300-355 | 23.4 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Globigerinatheka senni | 300-355 | 22.8 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Turborotalia pomeroli | 300-500 | 23.3 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Turborotalia pomeroli | 300-500 | 22.9 | 0.4 | intermediate, 50-150 m |
| 143-865C-6H-2,65-67 | Dentoglobigerina galavisi | 300-500 | 21.9 | 0.6 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Dentoglobigerina galavisi | 300-500 | 22.0 | 0.4 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Hantkenina dumblei | 250-600 | 21.9 | 0.6 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Hantkenina dumblei | 250-600 | 21.9 | 0.3 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Subbotina patagonica | 300-425 | 21.4 | 0.4 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Subbotina patagonica | 300-425 | 22.0 | 0.8 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Subbotina bakeri | 300-355 | 21.7 | 0.4 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Subbotina bakeri | 300-355 | 21.7 | 0.3 | thermocline, 100-250 m |
| 143-865C-6H-2,65-67 | Catapsydrax unicavus | 355-500 | 20.8 | 0.4 | deep, 200-600 m |
| 143-865C-6H-2,65-67 | Catapsydrax unicavus | 355-500 | 21.7 | 0.4 | deep, 200-600 m |
| 143-865C-6H-2,65-67 | Mixed species | 250-600 | 21.2 | 0.6 | sea floor |
| 143-865C-6H-2,65-67 | Mixed species | 250-600 | 22.0 | 0.8 | sea floor |