New controls on sedimentation and climate in the central equatorial Pacific Ocean

Jacobel, Allison W.; Costa, Kassandra M.; Applebaum, Lily M.; Conde, Serena

doi:https://doi.org/10.5194/gchron-7-123-2025

Articles | Volume 7, issue 1

https://doi.org/10.5194/gchron-7-123-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gchron-7-123-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7, issue 1

Research article

|

01 Apr 2025

Research article |

| 01 Apr 2025

New controls on sedimentation and climate in the central equatorial Pacific Ocean

Allison W. Jacobel, Kassandra M. Costa, Lily M. Applebaum, and Serena Conde

Supplement

https://doi.org/10.5194/gchron-7-123-2025-supplement

Data sets

Central Pacific age model, physical properties, stable isotope and radiocarbon data over the past 277 ka A. W. Jacobel et al. https://doi.org/10.25921/3y21-by25

Short summary

The equatorial Pacific is an important region that helps determine Earth's climate. This work presents new age models for two sediment core sites located in that region, spanning the last 280 kyr. Our age models are based on new radiocarbon dates and oxygen isotope measurements. We also use the oxygen isotope data to infer changes in sea surface salinity patterns, finding evidence for a change in the position of the Intertropical Convergence Zone (ITCZ) on glacial and interglacial timescales.