Rae, James W B; Meckler, Anna Nele; Sexton, Philip F (2022): Benthic boron isotope data and associated pH determinations, from paper on Cenozoic evolution of deep ocean temperature from clumped isotope thermometry [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946837
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Abstract:
Boron isotope data on benthic foraminifera, spanning 1 to 59 Ma, and used to reconstruct deep ocean pH change over the Cenozoic. Data are from ODP sites spanning water depths of 2500-3600 m in the Equatorial and North Atlantic. Measurements were made on mono-specific samples of the genus Cibicidoides, which were oxidatively cleaned, purified using column chromatography, and analysed using MC-ICPMS. The data are presented as part of a study on deep ocean temperature change over the Cenozoic using clumped isotopes, with the pH estimates used to evaluate the potential pH influence on conventional benthic oxygen isotopes.
Related to:
Meckler, Anna Nele; Sexton, Philip F; Piasecki, Alison; Leutert, Thomas Jan; Marquardt, Johanna; Ziegler, Martin; Agterhuis, Tobias; Lourens, Lucas Joost; Rae, James W B; Barnet, James; Tripati, Aradhna; Bernasconi, Stefano M (2022): Cenozoic evolution of deep ocean temperature from clumped isotope thermometry. Science, 377(6601), 86-90, https://doi.org/10.1126/science.abk0604
Source:
Greenop, Rosanna; Hain, Mathis P; Sosdian, Sindia M; Oliver, Kevin I C; Goodwin, Philip; Chalk, Thomas B; Lear, Caroline H; Wilson, Paul A; Foster, Gavin L (2017): A record of Neogene seawate d11B reconstructed from paired d11B analyses on benthic and planktic foraminifera. Climate of the Past, 13(2), 149-170, https://doi.org/10.5194/cp-13-149-2017
Project(s):
Funding:
European Research Council (ERC), grant/award no. 805246: CO2 reconstruction over the last 100 Myr from novel geological archives
Natural Environment Research Council (NERC), grant/award no. NE/I006443/1: Orbital Modulation of Eocene Carbon Cycle and Climate (OMECCC)
Coverage:
Median Latitude: 20.346084 * Median Longitude: -52.691561 * South-bound Latitude: 3.719100 * West-bound Longitude: -78.739300 * North-bound Latitude: 41.295835 * East-bound Longitude: -42.908100
Date/Time Start: 1994-02-19T11:30:00 * Date/Time End: 2003-02-09T07:35:00
Minimum Elevation: -3610.0 m * Maximum Elevation: -2548.8 m
Event(s):
154-926A * Latitude: 3.719100 * Longitude: -42.908100 * Date/Time Start: 1994-02-19T11:30:00 * Date/Time End: 1994-02-21T10:30:00 * Elevation: -3610.0 m * Penetration: 327 m * Recovery: 334.92 m * Location: South Atlantic Ocean * Campaign: Leg154 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 327 m cored; 0 m drilled; 102.4 % recovery
154-926B * Latitude: 3.719130 * Longitude: -42.908400 * Date/Time Start: 1994-02-21T10:30:00 * Date/Time End: 1994-02-25T19:00:00 * Elevation: -3610.0 m * Penetration: 605.8 m * Recovery: 593.25 m * Location: South Atlantic Ocean * Campaign: Leg154 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 64 cores; 605.8 m cored; 0 m drilled; 97.9 % recovery
165-999A * Latitude: 12.744000 * Longitude: -78.739300 * Date/Time Start: 1996-01-10T19:30:00 * Date/Time End: 1996-01-14T23:15:00 * Elevation: -2828.0 m * Penetration: 566.1 m * Recovery: 534.83 m * Location: Caribbean Sea * Campaign: Leg165 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 61 core; 566.1 m cored; 0 m drilled; 94.5 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Rae, James W B | |||
| 2 | Sample code/label | Sample label | Rae, James W B | |||
| 3 | Species | Species | Rae, James W B | |||
| 4 | Laboratory | Lab | Rae, James W B | |||
| 5 | Reference/source | Reference | Rae, James W B | |||
| 6 | Age | Age | Ma | Rae, James W B | ||
| 7 | Cibicidoides spp., δ11B | Cibicidoides spp. δ11B | ‰ SRM | Rae, James W B | see supplementary materials and methods | |
| 8 | Cibicidoides spp., δ11B, standard deviation | Cibicidoides spp. δ11B std dev | ± | Rae, James W B | see supplementary materials and methods | 2 SD analytical uncertainty |
| 9 | Bottom water temperature | BWT | °C | Rae, James W B | based on a smoothed fit to the accompanying clumped isotope reconstruction | |
| 10 | Paleosalinity | PalSal | Rae, James W B | psu | ||
| 11 | Paleoelevation | Paleoelevation | m a.s.l. | Rae, James W B | ||
| 12 | Calcium | Ca2+ | mmol/kg | Rae, James W B | seawater | |
| 13 | Magnesium | Mg2+ | mmol/kg | Rae, James W B | seawater | |
| 14 | Logarithmic boron dissociation constant | pKb | Rae, James W B | boric acid dissociation constant at the given temperature, salinity, pressure, and seawater chemistry conditions, expressed in p notation (-log10) | ||
| 15 | δ11B, seawater, reconstructed | δ11Bsw | ‰ SRM | Rae, James W B | see supplementary materials and methods | |
| 16 | δ11B, seawater, reconstructed, minimum | δ11Bsw min | ‰ SRM | Rae, James W B | see supplementary materials and methods | |
| 17 | δ11B, seawater, reconstructed, maximum | δ11Bsw max | ‰ SRM | Rae, James W B | see supplementary materials and methods | |
| 18 | pH, seawater, reconstructed | pH sw reconst | Rae, James W B | see supplementary materials and methods | ||
| 19 | pH, seawater, reconstructed | pH sw reconst | Rae, James W B | see supplementary materials and methods | at d11Bsw min | |
| 20 | pH, seawater, reconstructed | pH sw reconst | Rae, James W B | see supplementary materials and methods | at d11Bsw max | |
| 21 | pH, seawater, reconstructed, standard deviation | pH std dev | ± | Rae, James W B | see supplementary materials and methods | 1 SD of pH in a 10,000 member Monte Carlo ensemble that accounts for the influence of analytical uncertainty in d11B and ±2C in temperature |
| 22 | pH, seawater, reconstructed, percentile | pH percentile | Rae, James W B | see supplementary materials and methods | 2.5 percentile in the Monte Carlo ensemble providing a measure of the 68% and 95% confidence intervals | |
| 23 | pH, seawater, reconstructed, percentile | pH percentile | Rae, James W B | see supplementary materials and methods | 16 percentile in the Monte Carlo ensemble, providing a measure of the 68% and 95% confidence intervals | |
| 24 | pH, seawater, reconstructed, percentile | pH percentile | Rae, James W B | see supplementary materials and methods | 84 percentile in the Monte Carlo ensemble, providing a measure of the 68% and 95% confidence intervals | |
| 25 | pH, seawater, reconstructed, percentile | pH percentile | Rae, James W B | see supplementary materials and methods | 97.5 percentile in the Monte Carlo ensemble, providing a measure of the 68% and 95% confidence intervals |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)
Size:
744 data points