Maastrichtian–Rupelian paleoclimates in the southwest Pacific – a critical re-evaluation of biomarker paleothermometry and dinoflagellate cyst paleoecology at Ocean Drilling Program Site 1172

Bijl, Peter K.; Frieling, Joost; Cramwinckel, Marlow Julius; Boschman, Christine; Sluijs, Appy; Peterse, Francien

doi:https://doi.org/10.5194/cp-17-2393-2021

Articles | Volume 17, issue 6

https://doi.org/10.5194/cp-17-2393-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-17-2393-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 6

Research article

|

25 Nov 2021

Research article |

| 25 Nov 2021

Maastrichtian–Rupelian paleoclimates in the southwest Pacific – a critical re-evaluation of biomarker paleothermometry and dinoflagellate cyst paleoecology at Ocean Drilling Program Site 1172

Peter K. Bijl, Joost Frieling, Marlow Julius Cramwinckel, Christine Boschman, Appy Sluijs, and Francien Peterse

Supplement

https://doi.org/10.5194/cp-17-2393-2021-supplement

Data sets

RGDGT P. K. Bijl https://github.com/bijlpeter83/RGDGT.git

bijlpeter83/DINOSTRAT: Release DINOSTRAT V1 for peer review process (1.0) P. Bijl https://doi.org/10.5281/zenodo.4471204

Short summary

Here, we use the latest insights for GDGT and dinocyst-based paleotemperature and paleoenvironmental reconstructions in late Cretaceous–early Oligocene sediments from ODP Site 1172 (East Tasman Plateau, Australia). We reconstruct strong river runoff during the Paleocene–early Eocene, a progressive decline thereafter with increased wet/dry seasonality in the northward-drifting hinterland. Our critical review leaves the anomalous warmth of the Eocene SW Pacific Ocean unexplained.