Articles | Volume 15, issue 1
Research article
16 Jan 2019
Research article |  | 16 Jan 2019

The 405 kyr and 2.4 Myr eccentricity components in Cenozoic carbon isotope records

Ilja J. Kocken, Margot J. Cramwinckel, Richard E. Zeebe, Jack J. Middelburg, and Appy Sluijs

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Cited articles

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Boulila, S., Galbrun, B., Laskar, J., and Pälike, H.: A ~9 myr cycle in Cenozoic δ13C record and long-term orbital eccentricity modulation: Is there a link?, Earth Planet. Sc. Lett., 317/318, 273–281,, 2012. a
Short summary
Marine organic carbon burial could link the 405 thousand year eccentricity cycle in the long-term carbon cycle to that observed in climate records. Here, we simulate the response of the carbon cycle to astronomical forcing. We find a strong 2.4 million year cycle in the model output, which is present as an amplitude modulator of the 405 and 100 thousand year eccentricity cycles in a newly assembled composite record.