Articles | Volume 43, issue 1
https://doi.org/10.5194/jm-43-93-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-43-93-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 May 2024
Research article |
| 17 May 2024
| 17 May 2024
Diatom and radiolarian biostratigraphy in the Pliocene sequence of ODP Site 697 (Jane Basin, Atlantic sector of the Southern Ocean)
Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
present address: Marine Core Research Institute, Kochi University, Monobe, Nankoku, Kochi, 783-8502, Japan
Iván Hernández-Almeida
ETH Zürich, Geological Institute, Department of Earth Science, Zurich, Switzerland
Lara F. Pérez
Geological Survey of Denmark and Greenland, Aarhus University City 81, building 1872, 6 floor, DK-8000 Aarhus C, Denmark
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Short summary
In this study, we propose an age framework for an interval of 4.8–3.1 million years ago, using fossil records of marine plankton such as diatoms and radiolarians derived from a sediment core collected in the Southern Ocean. Specifically, a total of 19 bioevents (i.e., extinction/appearance events of selected age marker species) were detected, and their precise ages were calculated. The updated biostratigraphy will contribute to future paleoceanographic work in the Southern Ocean.
In this study, we propose an age framework for an interval of 4.8–3.1 million years ago, using...
