Radiocarbon dating of deep-sea corals

Jess F. Adkins; Shelia Griffin; Michaele Kashgarian; Hai Cheng; E. R.M. Druffel; E. A. Boyle; R. Lawrence Edwards; Chuan Chou Shen

doi:10.1017/S0033822200031921

Radiocarbon dating of deep-sea corals

Jess F. Adkins, Shelia Griffin, Michaele Kashgarian, Hai Cheng, E. R.M. Druffel, E. A. Boyle, R. Lawrence Edwards, Chuan Chou Shen

Earth and Environmental Sciences-Twin Cities

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

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. Diagenetic 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 Δ¹⁴C gradient in the deep ocean demonstrates that the coralline CaCO₃ records the radiocarbon value of the dissolved inorganic carbon.

Original language	English (US)
Pages (from-to)	567-580
Number of pages	14
Journal	Radiocarbon
Volume	44
Issue number	2
DOIs	https://doi.org/10.1017/S0033822200031921
State	Published - 2002

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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. Diagenetic 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 Δ14C gradient in the deep ocean demonstrates that the coralline CaCO3 records the radiocarbon value of the dissolved inorganic carbon.",

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AU - Adkins, Jess F.

AU - Griffin, Shelia

AU - Kashgarian, Michaele

AU - Cheng, Hai

AU - Druffel, E. R.M.

AU - Boyle, E. A.

AU - Edwards, R. Lawrence

AU - Shen, Chuan Chou

PY - 2002

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N2 - 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. Diagenetic 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 Δ14C gradient in the deep ocean demonstrates that the coralline CaCO3 records the radiocarbon value of the dissolved inorganic carbon.

AB - 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. Diagenetic 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 Δ14C gradient in the deep ocean demonstrates that the coralline CaCO3 records the radiocarbon value of the dissolved inorganic carbon.

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Radiocarbon dating of deep-sea corals

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