(Table 1) Age determination of sediment core 56-10-36, supplement to: Kroon, Dick; Austin, William EN; Chapman, Mark R; Ganssen, Gerald M (1997): Deglacial surface circulation changes in the northeastern Atlantic: Temperature and salinity records off NW Scotland on a century scale. Paleoceanography, 12(6), 755-763

Sea surface temperature and salinity estimates reconstructed from a core collected on the Barra Fan, northwest Scotland (56°43'N, 09°19'W; water depth 1320 m), show a series of rapid oscillations during the last deglacial period that are very similar to those observed in the d18O records f...

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Bibliographic Details
Main Authors: Kroon, Dick, Austin, William EN, Chapman, Mark R, Ganssen, Gerald M
Format: Dataset
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 1997
Subjects:
DEPTH, sediment/rock
Laboratory code/label
Age, dated material
Age, dated
Age, dated standard deviation
Foraminifera, planktic δ13C
Age model
Calendar age
Age, comment
Core drilling
Age, 14C AMS
Mass spectrometer VG Prism
Age, 14C calibrated
Austin
Barra
Greenland
Greenland ice cores
Nordic Seas
Northeast Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.868691
https://doi.pangaea.de/10.1594/PANGAEA.868691
Description
Summary:Sea surface temperature and salinity estimates reconstructed from a core collected on the Barra Fan, northwest Scotland (56°43'N, 09°19'W; water depth 1320 m), show a series of rapid oscillations during the last deglacial period that are very similar to those observed in the d18O records from Greenland ice cores. These records indicate that the transport of heat and salt toward the Nordic Seas was highest during the Bølling period. This ?superconveyor? weakened after the Bølling, probably as a consequence of increased meltwater flux reducing the oceanic salt content, as suggested by the Barbados sea-level record. Evidence for a phase of ice rafting during the Allerød is presented for the first time from this latitude in the northeast Atlantic. The Younger Dryas stadial, resolved here at a century/decadal scale, is characterized by very rapid oscillations in temperature and salinity, indicating that warm, relatively saline waters repeatedly displaced cool polar waters at this latitude. These observations attest to the inherent instability of the deglacial climate system.

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