Articles | Volume 19, issue 3
Research article
16 Mar 2023
Research article |  | 16 Mar 2023

A 1.5-million-year record of orbital and millennial climate variability in the North Atlantic

David A. Hodell, Simon J. Crowhurst, Lucas Lourens, Vasiliki Margari, John Nicolson, James E. Rolfe, Luke C. Skinner, Nicola C. Thomas, Polychronis C. Tzedakis, Maryline J. Mleneck-Vautravers, and Eric W. Wolff

Data sets

Benthic and planktonic oxygen and carbon isotopes and XRF data at IODP Site U1385 and core MD01-2444 from 0 to 1.5 Ma D. Hodell, S. Crowhurst, L. Lourens, V. Margari, J. Nicolson, J. E. Rolfe, L. C. Skinner, N. Thomas, P. C. Tzedakis, M. J. Mleneck-Vautravers, and E. W. Wolff

Short summary
We produced a 1.5-million-year-long history of climate change at International Ocean Discovery Program Site U1385 of the Iberian margin, a well-known location for rapidly accumulating sediments on the seafloor. Our record demonstrates that longer-term orbital changes in Earth's climate were persistently overprinted by abrupt millennial-to-centennial climate variability. The occurrence of abrupt climate change is modulated by the slower variations in Earth's orbit and climate background state.