Venz, Kathryn A; Hodell, David A; Stanton, Cathy; Warnke, Detlef A (1999): Stable carbon and oxygen isotope ratios of planktonic and benthic foraminifera from ODP Site 162-982 in the North Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.700897, Supplement to: Venz, KA et al. (1999): A 1.0 myr record of glacial North Atlantic Intermediate Water variability from ODP Site 982 in the northeast Atlantic. Paleoceanography, 14(1), 42-52, https://doi.org/10.1029/1998PA900013
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Abstract:
Changes in the intermediate water structure of the North Atlantic were reconstructed using benthic foraminiferal delta13C at Ocean Drilling Program (ODP) site 982 for the past 1.0 Myr. During most terminations of the late Pleistocene, melting of icebergs and low-salinity surface waters caused production of Glacial North Atlantic Intermediate Water to cease, resulting in decreased ventilation of the middepth North Atlantic. Poor ventilation of intermediate water masses lasted well into some interglacial stages until upper North Atlantic Deep Water (NADW) production resumed under full interglacial conditions. The magnitude of benthic delta13C minima and ice-rafted debris maxima at terminations at site 982 generally match the degree of glacial suppression of NADW inferred from site 607. These processes may be related and controlled by the spatial and seasonal extent of sea ice cover during glaciations in the Nordic Seas.
Other version:
Venz, Kathryn A; Hodell, David A; Stanton, Cathy; Warnke, Detlef A (1999): NOAA/WDS Paleoclimatology - Glacial North Atlantic Intermediate Water during the past 1 Ma. NOAA National Centers for Environmental Information, https://doi.org/10.25921/7NPK-7Y20
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 57.512667 * Longitude: -15.854183
Date/Time Start: 1995-07-15T00:00:00 * Date/Time End: 1995-07-19T00:00:00
Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 24.98 m
Event(s):
162-982 * Latitude: 57.512667 * Longitude: -15.854183 * Date/Time Start: 1995-07-15T00:00:00 * Date/Time End: 1995-07-19T00:00:00 * Elevation: -1134.2 m * Penetration: 1143.9 m * Recovery: 1008 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 120 cores; 1123.9 m cored; 0 m drilled; 89.7% recovery
Comment:
Depth is composite depth (mcd)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | AGE | Age | ka BP | Geocode | ||
| 3 | Sample code/label | Sample label | Venz, Kathryn A | DSDP/ODP/IODP sample designation | ||
| 4 | Cibicidoides spp., δ18O | Cibicidoides spp. δ18O | ‰ PDB | Venz, Kathryn A | Mass spectrometer VG Isogas Prism | C. wuellerstorfi and C. kullenbergi, size fraction >212 µm, 1-3 individuals |
| 5 | Cibicidoides spp., δ13C | Cibicidoides spp. δ13C | ‰ PDB | Venz, Kathryn A | Mass spectrometer VG Isogas Prism | C. wuellerstorfi and C. kullenbergi, size fraction >212 µm, 1-3 individuals |
| 6 | Globigerina bulloides, δ18O | G. bulloides δ18O | ‰ PDB | Venz, Kathryn A | Mass spectrometer VG Isogas Prism | size fraction 212-300 µm, 10 to 15 individuals |
| 7 | Globigerina bulloides, δ13C | G. bulloides δ13C | ‰ PDB | Venz, Kathryn A | Mass spectrometer VG Isogas Prism | size fraction 212-300 µm, 10 to 15 individuals |
| 8 | Calcium carbonate | CaCO3 | % | Venz, Kathryn A | Coulometric titration (Knap et al., 1996, IOC Manuals and Guides 29, UNESCO) | |
| 9 | Ice rafted debris | IRD | % | Venz, Kathryn A | Counting 250-2000 µm fraction | vol. % |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3346 data points
Download Data
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