Climate of the Past
Climate of the Past
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Articles | Volume 19, issue 4
Articles | Volume 19, issue 4
https://doi.org/10.5194/cp-19-765-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-765-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 4
Research article
 | 
03 Apr 2023
Research article |  | 03 Apr 2023

Late Neogene nannofossil assemblages as tracers of ocean circulation and paleoproductivity over the NW Australian shelf

Boris-Theofanis Karatsolis and Jorijntje Henderiks

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Cited articles

Anand, P., Elderfield, H., and Conte, M. H: Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series, Paleoceanography, 18, 1050, https://doi.org/10.1029/2002PA000846, 2003. 
Aubry, M.-P.: A major Pliocene coccolithophore turnover: Change in morphological strategy in the photic zone, Geol. Soc. Am., 424, 51, https://doi.org/10.1130/SPE424, 2007. 
Auer, G., De Vleeschouwer, D., Smith, R. A., Bogus, K., Groeneveld, J., Grunert, P., Castañeda, I. S., Petrick, B., Christensen, B., Fulthorpe, C., Gallagher, S. J., and Henderiks, J.: Timing and Pacing of Indonesian Throughflow Restriction and Its Connection to Late Pliocene Climate Shifts, Paleoceanogr. Paleoclim., 34, 635–657, https://doi.org/10.1029/2018PA003512, 2019. 
Auer, G., Petrick, B., Yoshimura, T., Mamo, B. L., Reuning, L., Takayanagi, H., De Vleeschouwer, D., and Martinez-Garcia, A.: Intensified organic carbon burial on the Australian shelf after the Middle Pleistocene transition, Quaternary Sci. Rev., 262, 106965, https://doi.org/10.1016/j.quascirev.2021.106965, 2021. 
Ballegeer, A. M., Flores, J. A., Sierro, F. J., and Andersen, N.: Monitoring fluctuations of the Subtropical Front in the Tasman Sea between 3.45 and 2.45 Ma (ODP site 1172), Palaeogeogr. Palaeoclim. Palaeoecol., 313–314, 215–224, https://doi.org/10.1016/j.palaeo.2011.11.001, 2012. 
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Short summary
Ocean circulation around NW Australia plays a key role in regulating the climate in the area and is characterised by seasonal variations in the activity of a major boundary current named the Leeuwin Current. By investigating nannofossils found in sediment cores recovered from the NW Australian shelf, we reconstructed ocean circulation in the warmer-than-present world from 6 to 3.5 Ma, as mirrored by long-term changes in stratification and nutrient availability.
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