(Table DR1) Age model of ODP Hole 151-910A, supplement to: Knies, Jochen; Matthiessen, Jens; Mackensen, Andreas; Stein, Ruediger; Vogt, Christoph; Frederichs, Thomas; Nam, Seung-Il (2007): Effects of Arctic freshwater forcing on thermohaline circulation during the Pleistocene. Geology, 35(12), 1075-1078

In this paper, we make use of calcium carbonate-bearing sediment sequences in the Arctic-Atlantic gateway to produce a standard reference climate record for the Arctic Ocean. We present a continuous and exceptionally well-dated marine sediment record documenting the strong imprint of Arctic freshwat...

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Bibliographic Details
Main Authors: Knies, Jochen, Matthiessen, Jens, Mackensen, Andreas, Stein, Ruediger, Vogt, Christoph, Frederichs, Thomas, Nam, Seung-Il
Format: Dataset
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2007
Subjects:
DEPTH, sediment/rock
Age, comment
Age, dated
Age to youngest
Age from oldest
Reference/source
Sedimentation rate
Drilling/drill rig
Leg151
Joides Resolution
Ocean Drilling Program ODP
Andreas
Arctic
Arctic Ocean
Foraminifera*
North Atlantic Deep Water
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.722570
https://doi.pangaea.de/10.1594/PANGAEA.722570
Description
Summary:In this paper, we make use of calcium carbonate-bearing sediment sequences in the Arctic-Atlantic gateway to produce a standard reference climate record for the Arctic Ocean. We present a continuous and exceptionally well-dated marine sediment record documenting the strong imprint of Arctic freshwater pulses on Earth's climate system throughout the past 0.8 m.y. Planktic foraminiferal oxygen and carbon isotope data reveal that freshwater plumes released from collapsing circum-Arctic ice sheets and ice-dammed lakes were advected to the Arctic Ocean gateway on sub-Milankovitch time scales. Given the close correspondence of Arctic freshwater pulses and strength of North Atlantic Deep Water formation as inferred from carbon isotope data, we conclude that freshening of the Arctic Ocean influenced thermohaline circulation more frequently than previously recognized. Our data show that it is critical for coupled atmosphere-ice-ocean general circulation models aimed at unraveling climate forcing factors during the Pleistocene to consider Arctic freshwater as a crucial forcing factor. : Ages referd to the Lisiecki and Raymo (2005 doi:10.1029/2004PA001071) timescale and for HO P. lacunosa, B/M boundary and Jaramillo to the Lourens et al. (2005) timescale

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