Articles | Volume 17, issue 5
Clim. Past, 17, 2091–2117, 2021
https://doi.org/10.5194/cp-17-2091-2021
Clim. Past, 17, 2091–2117, 2021
https://doi.org/10.5194/cp-17-2091-2021
Research article
15 Oct 2021
Research article | 15 Oct 2021

Climate, cryosphere and carbon cycle controls on Southeast Atlantic orbital-scale carbonate deposition since the Oligocene (30–0 Ma)

Anna Joy Drury et al.

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Latest update: 27 Jun 2022
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Short summary
We use the first high-resolution southeast Atlantic carbonate record to see how climate dynamics evolved since 30 million years ago (Ma). During ~ 30–13 Ma, eccentricity (orbital circularity) paced carbonate deposition. After the mid-Miocene Climate Transition (~ 14 Ma), precession (Earth's tilt direction) increasingly drove carbonate variability. In the latest Miocene (~ 8 Ma), obliquity (Earth's tilt) pacing appeared, signalling increasing high-latitude influence.