Lear, Caroline H; Coxall, Helen K; Foster, Gavin L; Lunt, Daniel J; Mawbey, Elaine M; Rosenthal, Yair; Sosdian, Sindia M; Thomas, Ellen; Wilson, Paul A (2021): Ocean water temperatures from ODP Site 130-806 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.931013
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Abstract:
The dataset compiles reconstructed changes in bottom water temperature and global ice volume from 0 to 17 Ma using δ18O in conjunction with Mg/Ca records of the infaunal benthic foraminifer, O. umbonatus from Ocean Drilling Program (ODP) Site 130-806 (equatorial Pacific; ~2500 m). This dataset covers the middle Miocene to present (17-0 Ma) and has an average temporal resolution of ~0.2 Ma. Application of the new equations to the Site 130-806 record leads to the suggestion that global ice volume was greater than today after the Middle Miocene Climate Transition (~14 Ma). ODP Site 130-806 bottom waters cooled and freshened as the Pacific zonal sea surface temperature gradient increased, and climate cooled through the Pliocene, prior to the Plio‐Pleistocene glaciation of the Northern Hemisphere.
Related to:
Lear, Caroline H; Coxall, Helen K; Foster, Gavin L; Lunt, Daniel J; Mawbey, Elaine M; Rosenthal, Yair; Sosdian, Sindia M; Thomas, Ellen; Wilson, Paul A (2015): Neogene ice volume and ocean temperatures: Insights from infaunal foraminiferal Mg/Ca paleothermometry. Paleoceanography, 30(11), 1437-1454, https://doi.org/10.1002/2015PA002833
Coverage:
Latitude: 0.318667 * Longitude: 159.361000
Date/Time Start: 1990-02-17T00:00:00 * Date/Time End: 1990-02-25T00:00:00
Minimum Elevation: -2520.5 m * Maximum Elevation: -2520.5 m
Event(s):
130-806 * Latitude: 0.318667 * Longitude: 159.361000 * Date/Time Start: 1990-02-17T00:00:00 * Date/Time End: 1990-02-25T00:00:00 * Elevation: -2520.5 m * Penetration: 1603.2 m * Recovery: 1275.9 m * Location: North Pacific Ocean * Campaign: Leg130 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 149 cores; 1414.4 m cored; 0 m drilled; 90.2% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Lear, Caroline H | Geocode | |
| 2 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Minimum |
| 3 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Best |
| 4 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Maximum |
| 5 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Minimum |
| 6 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Best |
| 7 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2002 Calibration) | Maximum |
| 8 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Minimum |
| 9 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Best |
| 10 | Bottom water temperature | BWT | °C | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Maximum |
| 11 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Minimum |
| 12 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Best |
| 13 | δ18O, seawater, reconstructed | δ18Osw | ‰ | Lear, Caroline H | Calculated (LEAR 2010 Calibration) | Maximum |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
942 data points