10.1594/PANGAEA.700897
Venz, Kathryn A
Kathryn A
Venz
Hodell, David A
David A
Hodell
0000-0001-8537-1588
Stanton, Cathy
Cathy
Stanton
Warnke, Detlef A
Detlef A
Warnke
Stable carbon and oxygen isotope ratios of planktonic and benthic foraminifera from ODP Site 162-982 in the North Atlantic
PANGAEA
1999
DEPTH, sediment/rock
AGE
Sample code/label
Cibicidoides spp., δ18O
Cibicidoides spp., δ13C
Globigerina bulloides, δ18O
Globigerina bulloides, δ13C
Calcium carbonate
Ice rafted debris
Composite Core
DSDP/ODP/IODP sample designation
Mass spectrometer VG Isogas Prism
Coulometric titration (Knap et al., 1996, IOC Manuals and Guides 29, UNESCO)
Counting 250-2000 µm fraction
Leg162
Joides Resolution
Ocean Drilling Program (ODP)
1995-07-15T00:00:00/1995-07-19T00:00:00
en
Supplementary Dataset
10.1029/1998PA900013
10.25921/7NPK-7Y20
3346 data points
text/tab-separated-values
Creative Commons Attribution 3.0 Unported
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.
Depth is composite depth (mcd)
Supplement to: Venz, Kathryn A; Hodell, David A; Stanton, Cathy; Warnke, Detlef A (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
-15.854183333333
57.512666666667
South Atlantic Ocean