Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Assessing the ability of the 14 C projection-age method to
 

Summary: Assessing the ability of the 14
C projection-age method to
constrain the circulation of the past in a 3-D ocean model
J. Franke
Department of Geosciences, University of Bremen, Klagenfurter Strasse, D-28359 Bremen, Germany
(joerg.franke@palmod.uni-bremen.de)
Now at Swiss Federal Research Institute WSL, Zu¨rcherstrasse 111, CH-8903 Birmensdorf, Switzerland
M. Schulz and A. Paul
Department of Geosciences, University of Bremen, Klagenfurter Strasse, D-28359 Bremen, Germany
Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, D-28359 Bremen, Germany
J. F. Adkins
Division of Geological and Planetary Sciences, California Institute of Technology, 1200 California Avenue, MS 100-23,
Pasadena, California 91125, USA
[1] Radiocarbon differences between benthic and planktonic foraminifera (B-P ages) and radiocarbon
projection ages are both used to determine changes of the past ocean circulation rate. A global 3-D ocean
circulation model with a constant modern ocean circulation is used to study which method is less
influenced by atmospheric D14
C variations. Three factors cause uncertainties: first, the long equilibration
time of the ocean after atmospheric D14
C changes; second, different mixing processes in the ocean, which

  

Source: Adkins, Jess F. - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Environmental Sciences and Ecology; Geosciences