Pliocene shorelines and the epeirogenic  motion of continental margins: a target  dataset for dynamic topography models

Hollyday, Andrew; Raymo, Maureen E.; Austermann, Jacqueline; Richards, Fred; Hoggard, Mark; Rovere, Alessio

doi:https://doi.org/10.5194/esurf-12-883-2024

Articles | Volume 12, issue 4

https://doi.org/10.5194/esurf-12-883-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esurf-12-883-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 4

Research article

|

24 Jul 2024

Research article |

| 24 Jul 2024

Pliocene shorelines and the epeirogenic motion of continental margins: a target dataset for dynamic topography models

Andrew Hollyday, Maureen E. Raymo, Jacqueline Austermann, Fred Richards, Mark Hoggard, and Alessio Rovere

Supplement

https://doi.org/10.5194/esurf-12-883-2024-supplement

Model code and software

A revised estimate of early Pliocene global mean sea level using geodynamic models of the Patagonian slab window Andrew Hollyday, et al. https://doi.org/10.5281/zenodo.7508208

Pliocene shorelines and the epeirogenic motion of continental margins: A target dataset for dynamic topography models Andrew Hollyday https://doi.org/10.5281/zenodo.11508207

ahollyday/aspect: DT and convection code Wolfgang Bangerth, et al. https://doi.org/10.5281/zenodo.12774320

Short summary

Sea level was significantly higher during the Pliocene epoch, around 3 million years ago. The present-day elevations of shorelines that formed in the past provide a data constraint on the extent of ice sheet melt and the global sea level response under warm Pliocene conditions. In this study, we identify 10 escarpments that formed from wave-cut erosion during Pliocene times and compare their elevations with model predictions of solid Earth deformation processes to estimate past sea level.