Intra-Annual Variability of the Radiocarbon Content of Corals from the Galapagos Islands
Issue Date
1993-01-01Keywords
annual variationsPunta Pitt
San Cristobal Island
Southern Oscillation
AMS data
Galapagos Islands
El Nino
East Pacific Ocean Islands
Anthozoa
CoelenteratagrowthHoloceneupper HolocenecorrelationCenozoicQuaternaryC 14carbondatesisotopesradioactive isotopesInvertebrataabsolute age
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Brown, T. A., Farwell, G. W., Grootes, P. M., Schmidt, F. H., & Stuiver, M. (1993). Intra-annual variability of the radiocarbon content of corals from the Galapagos Islands. Radiocarbon, 35(2), 245-251.Journal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
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
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