Compilation of Mg/Ca ratios of Neogloboquadrina pachyderma (sinistral) and SST estimates from the northern North Atlantic ...

A map of estimated calcification temperatures of the planktic foraminifer Neogloboquadrina pachyderma sinistral (TNps) for the Nordic Seas and the northern North Atlantic for the Last Glacial Maximum was produced from oxygen isotopes with support of Mg/Ca ratios. To arrive at the reconstruction, sev...

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Bibliographic Details
Main Authors: Meland, Marius Y, Jansen, Eystein, Elderfield, Henry
Format: Dataset
Language:English
Published: PANGAEA 2005
Subjects:
Event label
Latitude of event
Longitude of event
Elevation of event
DEPTH, sediment/rock
Depth, top/min
Depth, bottom/max
Depth comment
Number
Magnesium/Calcium ratio
Sea surface temperature, annual mean
Reference/source
Kasten corer
Gravity corer
Gravity corer Kiel type
Calypso Corer
Kasten corer 15 cm
Giant box corer
Piston corer
Calculated
D184
M7/5
HM71
HM79
HM80
HM94
MD101
MD114
NEAP
ARK-VIII/3
SO82
PALEOCINAT
V23
Discovery 1962
Meteor 1986
Håkon Mosby
Marion Dufresne 1995
Charles Darwin
Polarstern
Sonne
Le Suroît
Vema
Multiproxy Approach for the Reconstruction of the Glacial Ocean surface MARGO
Meland
Neogloboquadrina pachyderma
Nordic Seas
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.227397
https://doi.pangaea.de/10.1594/PANGAEA.227397
Description
Summary:A map of estimated calcification temperatures of the planktic foraminifer Neogloboquadrina pachyderma sinistral (TNps) for the Nordic Seas and the northern North Atlantic for the Last Glacial Maximum was produced from oxygen isotopes with support of Mg/Ca ratios. To arrive at the reconstruction, several constraints concerning the plausible salinity and ?18O-fields were employed. The reconstruction indicates inflow of temperate waters in a wedge along the eastern border of the Nordic Seas and at least seasonally ice-free waters. The reconstruction from oxygen isotopes shows similarities with Mg/Ca based paleotemperatures in the southern and southeastern sector, while unrealistically high Mg/Ca values in the central Nordic Seas prevent the application of the method in this area. The oxygen isotope based reconstruction shows some agreement with temperature reconstructions based on the modern analogue technique, but with somewhat lower temperatures and a stronger internal gradient inside the Nordic Seas. All ... : Supplement to: Meland, Marius Y; Jansen, Eystein; Elderfield, Henry (2005): Constraints on SST estimates for the northern North Atlantic/Nordic Seas during the LGM. Quaternary Science Reviews, 24(7-9), 835-852 ...

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