Articles | Volume 8, issue 1
https://doi.org/10.5194/gchron-8-85-2026
https://doi.org/10.5194/gchron-8-85-2026
Research article
 | 
05 Feb 2026
Research article |  | 05 Feb 2026

Global and regional Pleistocene benthic δ18O stacks with a comparison of different age modeling strategies

Yuxin Zhou, Lorraine E. Lisiecki, Stephen R. Meyers, Taehee Lee, and Charles Lawrence

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Cited articles

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Ahn, S., Khider, D., Lisiecki, L. E., and Lawrence, C. E.: A probabilistic Pliocene–Pleistocene stack of benthic δ18O using a profile hidden Markov model, Dynamics and Statistics of the Climate System, 2, https://doi.org/10.1093/climsys/dzx002, 2017. 
Anderson, R. F., Barker, S., Fleisher, M., Gersonde, R., Steven, L., Kuhn, G., Mortyn, P. G., Pahnke, K., Julian, P., Anderson, R. F., Barker, S., Fleisher, M., Gersonde, R., Goldstein, S. L., Kuhn, G., Mortyn, P. G., Pahnke, K., and Sachs, J. P.: Biological response to millennial variability of dust and nutrient supply in the Subantarctic South Atlantic Ocean Biological response to millennial variability of dust and nutrient supply in the Subantarctic South Atlantic Ocean, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 372, https://doi.org/10.1098/rsta.2013.0054, 2014. 
Barker, S., Lisiecki, L. E., Knorr, G., Nuber, S., and Tzedakis, P. C.: Distinct roles for precession, obliquity, and eccentricity in Pleistocene 100 kyr glacial cycles, Science, 387, eadp3491, https://doi.org/10.1126/science.adp3491, 2025. 
Barnett, R. L., Austermann, J., Dyer, B., Telfer, M. W., Barlow, N. L. M., Boulton, S. J., Carr, A. S., and Creel, R. C.: Constraining the contribution of the Antarctic Ice Sheet to Last Interglacial sea level, Science Advances, 9, eadf0198, https://doi.org/10.1126/sciadv.adf0198, 2023. 
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Short summary
Marine sediments contain valuable information about past climate changes. However, dating Pleistocene marine sediments can be difficult, and the accuracy of the age model depends on the quality of the stratigraphic alignment target. We introduce three targets – Atlantic, Pacific, and global – with three distinct chronologies for the global target that incorporate astronomical forcing constraints to various degrees. This suite of targets offers flexibility in age model construction.
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