Age determination of sediment cores from the Northeast Atlantic

Radiocarbon dating series, bulk sediment, and organic carbon flux from various Atlantic deep-sea regions reveal that the thickness of the bioturbated zone increases by 2 cm if food supply increases by 1 gC/m**2/yr (r = 0.8). Bulk sediment accumulation rates do not influence the depth of bioturbation...

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Bibliographic Details
Main Authors: Trauth, M H, Sarnthein, Michael, Arnold, Maurice
Format: Other/Unknown Material
Language:English
Published: PANGAEA 1997
Subjects:
Arctic Ocean
Biscaya
Giant box corer
GIK17045-2
GIK17730-2
GIK23259-3
GKG
M11/1
M13/2
M7/2
Meteor (1986)
Norwegian Sea
Quaternary Environment of the Eurasian North
QUEEN
Northeast Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.730489
https://doi.org/10.1594/PANGAEA.730489
Description
Summary:Radiocarbon dating series, bulk sediment, and organic carbon flux from various Atlantic deep-sea regions reveal that the thickness of the bioturbated zone increases by 2 cm if food supply increases by 1 gC/m**2/yr (r = 0.8). Bulk sediment accumulation rates do not influence the depth of bioturbational mixing under normal pelagic sedimentary conditions. We believe that this relationship between nutrient supply and benthic mixing can be used for a quantitative and time-variable unmixing procedure to improve high-resolution stratigraphic correlations and paleoclimatic interpretations of deep-sea records.

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