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Intra-Annual Variability of the Radiocarbon Content of Corals from the Galapagos Islands1

Published online by Cambridge University Press:  18 July 2016

T. A. Brown ,
G. W. Farwell ,
P. M. Grootes ,
F. H. Schmidt  and
Minze Stuiver
T. A. Brown
Affiliation:
Nuclear Physics Laboratory GL-10 and Department of Physics, University of Washington, Seattle, Washington 98195 USA Geophysics Program AK-50, University of Washington
G. W. Farwell
Affiliation:
Nuclear Physics Laboratory GL-10 and Department of Physics, University of Washington, Seattle, Washington 98195 USA
P. M. Grootes
Affiliation:
Nuclear Physics Laboratory GL-10 and Department of Physics, University of Washington, Seattle, Washington 98195 USA Quaternary Isotope Laboratory AK-60 and Department of Geological Sciences, University of Washington
F. H. Schmidt
Affiliation:
Nuclear Physics Laboratory GL-10 and Department of Physics, University of Washington, Seattle, Washington 98195 USA We regret the passing of our friend and colleague, Professor Emeritus Fred H. Schmidt, who died on 17 January 1991.
Minze Stuiver
Affiliation:
Quaternary Isotope Laboratory AK-60 and Department of Geological Sciences, University of Washington
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Abstract

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We report AMS 14C measurements on subannual samples of coral from the Galapagos Islands that span the period, 1970–1973. Both the major 1972 El Niño/Southern Oscillation event and intra-annual changes in regional upwelling of 14C-depleted waters associated with alternation of surface-ocean current patterns are evident in the record. Our data show that the corals preserve a detailed record of past intra-annual variations of the 14C content of surface ocean water.

Type
Articles
Information
Radiocarbon , Volume 35 , Issue 2 , 1993 , pp. 245 - 251
Copyright
Copyright © The American Journal of Science 

References

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