Age determination of sediment cores from the Northeast Atlantic, supplement to: Trauth, M H; Sarnthein, Michael; Arnold, Maurice (1997): Bioturbational mixing depth and carbon flux at the seafloor. Paleoceanography, 12(3), 517-526

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: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 1997
Subjects:
Giant box corer
M11/1
M13/2
M7/2
Meteor 1986
Quaternary Environment of the Eurasian North QUEEN
Maurice
Northeast Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.730489
https://doi.pangaea.de/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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