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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 3
Clim. Past, 12, 729–748, 2016
https://doi.org/10.5194/cp-12-729-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Clim. Past, 12, 729–748, 2016
https://doi.org/10.5194/cp-12-729-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 22 Mar 2016

Research article | 22 Mar 2016

Phase relationships between orbital forcing and the composition of air trapped in Antarctic ice cores

Lucie Bazin et al.

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Cited articles

Battle, M., Bender, M., Sowers, T., Tans, P. P., Butler, J. H., Elkins, J. W., Ellis, J. T., Conway, T., Zhang, N., Lang, P., and Clarket, A. D.: Atmospheric gas concentrations over the past century measured in air from firn at the South Pole, Nature, 383, 231–235, https://doi.org/10.1038/383231a0, 1996.
Bender, M., Sowers, T., and Labeyrie, L.: The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core, Global Biogeochem. Cy., 8, 363–376, https://doi.org/10.1029/94GB00724, 1994.
Bender, M., Sowers, T., and Lipenkov, V.: On the concentrations of O2, N2, and Ar in trapped gases from ice cores, J. Geophys. Res.-Atmos., 100, 18651–18660, https://doi.org/10.1029/94JD02212, 1995.
Bender, M. L.: Orbital tuning chronology for the Vostok climate record supported by trapped gas composition, Earth Planet. Sc. Lett., 204, 275–289, https://doi.org/10.1016/S0012-821X(02)00980-9, 2002.
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We present new measurements of δO2⁄N2 and δ18Oatm performed on well-conserved ice from EDC covering MIS5 and between 380 and 800 ka. The combination of the observation of a 100 ka periodicity in the new δO2⁄N2 record with a MIS5 multi-site multi-proxy study has revealed a potential influence of local climatic parameters on δO2⁄N2. Moreover, we propose that the varying delay between d18Oatm and precession for the last 800 ka is affected by the occurrence of ice sheet discharge events.
We present new measurements of δO2⁄N2 and δ18Oatm performed on well-conserved ice from EDC...
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