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MARINE BIOGENIC CARBONATES AND RADIOCARBON—A RETROSPECTIVE ON SHELLS AND CORALS WITH AN OUTLOOK ON CHALLENGES AND OPPORTUNITIES

Published online by Cambridge University Press:  02 November 2021

Susanne Lindauer Open the ORCID record for Susanne Lindauer [Opens in a new window] ,
Carla S Hadden Open the ORCID record for Carla S Hadden [Opens in a new window] ,
Kita Macario Open the ORCID record for Kita Macario [Opens in a new window]  and
Thomas P Guilderson Open the ORCID record for Thomas P Guilderson [Opens in a new window]
Susanne Lindauer*
Affiliation:
Curt-Engelhorn-Centre Archaeometry, Mannheim, Germany
Carla S Hadden
Affiliation:
Center for Applied Isotope Studies, University of Georgia, Athens, GA, USA
Kita Macario
Affiliation:
Instituto de Física, Universidade Federal Fluminense, Niterói, Brazil
Thomas P Guilderson
Affiliation:
Ocean Sciences Department, University of California, Santa Cruz, CA, USA
*
*Corresponding author. Email: [email protected]
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Abstract

Many organisms living in the ocean create tests, shells, or related physical structures of calcium carbonate (CaCO3). As this is most often from dissolved inorganic carbon, using organisms that create calcium carbonate structures for climate research and dating purposes requires knowledge of the origin of carbon that is incorporated. Here, we give a short overview of research on marine carbonates over the last 60 years, especially that based on shell and coral samples. Both shells and corals exhibit annual growth patterns, like trees, and therefore offer possibilities for yearly resolution of past radiocarbon (14C) variations. We concentrate on their evolution in 14C dating including difficulties in determining reservoir ages as well as the possibilities they offer for archaeological dating, oceanography, calibration purposes as well as environmental research in general.

Keywords

coraloceansradiocarbonshell
Type
Research Article
Information
Radiocarbon , Volume 64 , Issue 4: Seven Decades of Radiocarbon Dating: Remembering the Pioneers & Looking Towards the Future Part 2 of 2 , August 2022 , pp. 689 - 704
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Copyright
© The Author(s), 2021. Published by Cambridge University Press for the Arizona Board of Regents on behalf of the University of Arizona

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Footnotes

†

All authors contributed equally to this retrospective.

References

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