Radiocarbon Dating of Deep-Sea Corals
Issue Date
2002-01-01Keywords
leachingmodern analogs
deep sea environment
ocean circulation
Desmophyllum cristagalli
Th U
Anthozoa
Coelenterata
Atlantic Ocean
North Atlanticmarine environmentpaleoclimatologyCenozoicQuaternarymethodsC 14carbonisotopesradioactive isotopesInvertebrataabsolute age
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Adkins, J. F., Griffin, S., Kashgarian, M., Cheng, H., Druffel, E. R. M., Boyle, E. A., ... & Shen, C.-C. (2002). Radiocarbon dating of deep-sea corals. Radiocarbon, 44(2), 567-580.Journal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
Deep-sea corals are a promising new archive of paleoclimate. Coupled radiocarbon and U-series dates allow 14C to be used as a tracer of ocean circulation rate in the same manner as it is used in the modern ocean. Diagnetic alteration of coral skeletons on the seafloor requires a thorough cleaning of contaminating phases of carbon. In addition, 10% of the coral must be chemically leached prior to dissolution to remove adsorbed modern CO2. A survey of modern samples from the full Delta-14C gradient in the deep ocean demonstrates that the coralline CaCO3 records the radiocarbon value of the dissolved inorganic carbon.Type
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