Barragán-Montilla, Sofía; Johnstone, Heather J H; Mulitza, Stefan; Pälike, Heiko (2023): Bottom water temperatures (raw and processed including confidence intervals) calculated using Mg/Ca ratios of endobenthic Uvigerina spp. from the last 50.000 years from site GeoB9508-5 off NW Africa [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950494
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Abstract:
To investigate deep ocean heat uptake variability, we measured Mg/Ca ratios of Uvigerina spp. on samples from site GeoB9508-5 off NW Africa. Bottom water temperatures (BWT) were calculated using the equation cited by Roberts et al. (2016) (https://doi.org/10.1073/pnas.1511252113). To estimate the δ18O of seawater, the δ18O of Cibicidoides wuellerstorfi was corrected by a species-specific offset of +0.64 ‰ and the temperature effect was extracted based on our paleotemperature record. No further corrections were made on the δ13C. of Cibicidoides spp. The data was modelled using BACON, and contains raw and processed stable isotope data from epibenthic Cibicidoides spp., including confidence intervals (95%) from the last 50.000 years at the eastern North Atlantic. Standard deviation for BWT was 0.7 °C and 0.07/0.05 for δ18O and δ13C.
Keyword(s):
Related to:
Barragán-Montilla, Sofía; Mulitza, Stefan; Johnstone, Heather J H; Pälike, Heiko (2023): Stagnant North Atlantic Deep Water Heat Uptake With Reduced Atlantic Meridional Overturning Circulation During the Last Deglaciation. Paleoceanography and Paleoclimatology, 38(6), e2022PA004575, https://doi.org/10.1029/2022PA004575
Project(s):
Coverage:
Latitude: 15.498333 * Longitude: -17.948000
Date/Time Start: 2005-06-15T13:51:00 * Date/Time End: 2005-06-15T13:51:00
Minimum DEPTH, sediment/rock: 0.030 m * Maximum DEPTH, sediment/rock: 7.930 m
Event(s):
GeoB9508-5 (293) * Latitude: 15.498333 * Longitude: -17.948000 * Date/Time: 2005-06-15T13:51:00 * Elevation: -2384.0 m * Recovery: 9.56 m * Campaign: M65/1 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: geology, 956 cm
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Barragán-Montilla, Sofía | Geocode | |
| 2 | AGE | Age | ka BP | Barragán-Montilla, Sofía | Geocode – Median | |
| 3 | Bottom water temperature | BWT | °C | Barragán-Montilla, Sofía | Calculated from Mg/Ca ratios | Uvigerina spp. BWT |
| 4 | Bottom water temperature | BWT | °C | Barragán-Montilla, Sofía | Calculated from Mg/Ca ratios | (Modelled) Uvigerina spp. BWT |
| 5 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.025 | ||
| 6 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.16 | ||
| 7 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.84 | ||
| 8 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.975 | ||
| 9 | δ18O, seawater, reconstructed | δ18Osw | ‰ SMOW | Barragán-Montilla, Sofía | vs. VSMOW | |
| 10 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.025 | ||
| 11 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.16 | ||
| 12 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.84 | ||
| 13 | Confidence interval | CI | Barragán-Montilla, Sofía | Q0.975 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1012 data points