Pang, Xiaolei; Voelker, Antje H L; Ding, Xuan; Lu, Sihua: Globigerinoides ruber Mg/Ca-derived sea surface and Globoconella inflata Mg/Ca-derived thermocline water temperature records over the last 340 ka from ODP Hole 164-994C [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.959913 (dataset in review)
Abstract:
Here we present 340 kyr long records of Globigerinoides ruber Mg/Ca-derived sea surface temperature (SST) and Globoconella inflata Mg/Ca-derived thermocline water temperature (TWT) from ODP Site 994C which is located within the Gulf Stream upstream region in the northwestern Atlantic Ocean. These records were used in studying changes in Gulf Stream's heat transportation. The SST and TWT generally show glacial-interglacial variations. However, during the glacial period Marine Isotope Stage (MIS) 8, the SST and TWT are anomalously higher, warmer even than during some interglacial times, which we interpret as a result of a more intense Gulf Stream. We suggest that the lower continental icesheet volume in the northern hemisphere in MIS 8 compared to other glacial times is likely responsible for the anomalous strong Gulf Stream.
Supplement to:
Pang, Xiaolei (submitted): Anomalous Gulf Stream Intensification during Glacial Marine Isotope Stage 8. Paleoceanography and Paleoclimatology
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 31.785700 * Longitude: -75.545900
Date/Time Start: 1995-11-08T12:45:00 * Date/Time End: 1995-11-15T01:10:00
Minimum DEPTH, sediment/rock: 0.13 m * Maximum DEPTH, sediment/rock: 10.33 m
Event(s):
164-994C * Latitude: 31.785700 * Longitude: -75.545900 * Date/Time Start: 1995-11-08T12:45:00 * Date/Time End: 1995-11-15T01:10:00 * Elevation: -2799.1 m * Penetration: 703.5 m * Recovery: 501.47 m * Location: South Atlantic Ocean * Campaign: Leg164 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 84 cores; 703.5 m cored; 0 m drilled; 71.3 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Pang, Xiaolei | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Pang, Xiaolei | Geocode | |
| 3 | AGE | Age | ka BP | Pang, Xiaolei | Geocode | |
| 4 | Globigerinoides ruber, Magnesium/Calcium ratio | G. ruber Mg/Ca | mmol/mol | Pang, Xiaolei | Quadrupol ICP-MS, Bruker Daltonics, aurora M90 | 250-355 μm size fraction |
| 5 | Sea surface temperature, annual mean | SST (1-12) | °C | Pang, Xiaolei | Calculated from Mg/Ca ratios (Anand et al., 2003) | G. ruber Mg/Ca-derived SST (℃) [Mg/Ca=0.38 exp (0.09*T) |
| 6 | Globoconella inflata, Magnesium/Calcium ratio | G. inflata Mg/Ca | mmol/mol | Pang, Xiaolei | Quadrupol ICP-MS, Bruker Daltonics, aurora M90 | 250-355 μm size fraction |
| 7 | Sea surface temperature, annual mean | SST (1-12) | °C | Pang, Xiaolei | Calculated from Mg/Ca ratios (Anand et al., 2003) | G. inflata Mg/Ca-derived TWT (℃) [Mg/Ca=0.299 exp (0.09*T) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
492 data points