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AMS Radiocarbon Dates on Foraminifera from Deep Sea Sediments

Published online by Cambridge University Press:  18 July 2016

Michael Andree ,
Hans Oeschger ,
W S Broecker ,
Nancy Beavan ,
Alan Mix ,
Georges Bonani ,
H J Hofmann ,
Elvezio Morenzoni ,
Marzio Nessi  and
Martin Suter
...Show all authors
Michael Andree
Affiliation:
Physics Institute, University of Berne, Switzerland
Hans Oeschger
Affiliation:
Physics Institute, University of Berne, Switzerland
W S Broecker
Affiliation:
Lamont-Doherty Geological Observatory, Columbia University, New York
Nancy Beavan
Affiliation:
Lamont-Doherty Geological Observatory, Columbia University, New York
Alan Mix
Affiliation:
College of Oceanography, Oregon State University, Corvallis
Georges Bonani
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
H J Hofmann
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
Elvezio Morenzoni
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
Marzio Nessi
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
Martin Suter
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
Willy Wölfli
Affiliation:
Institut für Mittelenergiephysik, ETH Hönggerberg, Zürich
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Abstract

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14C ages were determined on samples of foraminifera separated from cores from three areas of the tropical Pacific (East Pacific Rise, Oontong Java Plateau, and South China Sea). Analyses were made on four planktonic species and on mixed benthics. The purpose of the multiple analysis on planktonic species is to assess the importance of artifacts resulting from the bioturbation-abundance change couple, from the bioturbation-partial dissolution couple and from redeposition by bottom currents. The goal is to use the benthic-planktonic age difference as a means of establishing changes in deep sea ventilation rate over the past 25,000 years. Results of a part of this work are presented in this paper.

Type
IV. Methods and Applications
Information
Radiocarbon , Volume 28 , Issue 2A , 1986 , pp. 424 - 428
Copyright
Copyright © The American Journal of Science 

References

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