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Carbon isotope data in core V19-30 confirm reduced carbon dioxide concentration in the ice age atmosphere

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Abstract

Precise and detailed measurements have been made of the 13C content of both planktonic and benthic foraminifera in core V 19-30. Using the approach developed by Broecker, a record of atmospheric CO2 concentration during the past 120,000 years has been derived which provides independent confirmation that the CO2 concentration in the glacial-age atmosphere was much lower than it is today.

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Authors and Affiliations

  1. Godwin Laboratory for Quaternary Research, University of Cambridge, Cambridge, CB2 3RS, UK

    N. J. Shackleton, M. A. Hall, J. Line & Cang Shuxi

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  1. N. J. Shackleton
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  2. M. A. Hall
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  3. J. Line
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  4. Cang Shuxi
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Shackleton, N., Hall, M., Line, J. et al. Carbon isotope data in core V19-30 confirm reduced carbon dioxide concentration in the ice age atmosphere. Nature 306, 319–322 (1983). https://doi.org/10.1038/306319a0

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  • DOI: https://doi.org/10.1038/306319a0

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