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.
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
Related authors
No articles found.
Madeleine Santos, Lisa Bröder, Matt O'Regan, Iván Hernández-Almeida, Tommaso Tesi, Lukas Bigler, Negar Haghipour, Daniel B. Nelson, Michael Fritz, and Julie Lattaud
EGUsphere, https://doi.org/10.5194/egusphere-2025-3953, https://doi.org/10.5194/egusphere-2025-3953, 2025
This preprint is open for discussion and under review for Climate of the Past (CP).
Short summary
Short summary
Our study examined how sea ice in the Beaufort Sea has changed over the past 13,000 years to better understand today’s rapid losses. By analyzing chemical tracers preserved in seafloor sediments, we found that the Early Holocene was largely ice-free, with warmer waters and lower salinity. Seasonal ice began forming about 7,000 years ago and expanded as the climate cooled. These long-term patterns show that continued warming could return the region to mostly ice-free conditions.
Lukas Jonkers, Tonke Strack, Montserrat Alonso-Garcia, Simon D'haenens, Robert Huber, Michal Kucera, Iván Hernández-Almeida, Chloe L. C. Jones, Brett Metcalfe, Rajeev Saraswat, Lóránd Silye, Sanjay K. Verma, Muhamad Naim Abd Malek, Gerald Auer, Cátia F. Barbosa, Maria A. Barcena, Karl-Heinz Baumann, Flavia Boscolo-Galazzo, Joeven Austine S. Calvelo, Lucilla Capotondi, Martina Caratelli, Jorge Cardich, Humberto Carvajal-Chitty, Markéta Chroustová, Helen K. Coxall, Renata M. de Mello, Anne de Vernal, Paula Diz, Kirsty M. Edgar, Helena L. Filipsson, Ángela Fraguas, Heather L. Furlong, Giacomo Galli, Natalia L. García Chapori, Robyn Granger, Jeroen Groeneveld, Adil Imam, Rebecca Jackson, David Lazarus, Julie Meilland, Marína Molčan Matejová, Raphael Morard, Caterina Morigi, Sven N. Nielsen, Diana Ochoa, Maria Rose Petrizzo, Andrés S. Rigual-Hernández, Marina C. Rillo, Matthew L. Staitis, Gamze Tanık, Raúl Tapia, Nishant Vats, Bridget S. Wade, and Anna E. Weinmann
J. Micropalaeontol., 44, 145–168, https://doi.org/10.5194/jm-44-145-2025, https://doi.org/10.5194/jm-44-145-2025, 2025
Short summary
Short summary
Our study provides guidelines improving the reuse of marine microfossil assemblage data, which are valuable for understanding past ecosystems and environmental change. Based on a survey of 113 researchers, we identified key data attributes required for effective reuse. Analysis of a selection of datasets available online reveals a gap between the attributes scientists consider essential and the data currently available, highlighting the need for clearer data documentation and sharing practices.
Lara F. Pérez, Paul C. Knutz, John R. Hopper, Marit-Solveig Seidenkrantz, Matt O'Regan, and Stephen Jones
Sci. Dril., 33, 33–46, https://doi.org/10.5194/sd-33-33-2024, https://doi.org/10.5194/sd-33-33-2024, 2024
Short summary
Short summary
The Greenland ice sheet is highly sensitive to global warming and a major contributor to sea level rise. In Northeast Greenland, ice–ocean–tectonic interactions are readily observable today, but geological records that illuminate long-term trends are lacking. NorthGreen aims to promote scientific drilling proposals to resolve key scientific questions on past changes in the Northeast Greenland margin that further affected the broader Earth system.
Heather M. Stoll, Leopoldo D. Pena, Ivan Hernandez-Almeida, José Guitián, Thomas Tanner, and Heiko Pälike
Clim. Past, 20, 25–36, https://doi.org/10.5194/cp-20-25-2024, https://doi.org/10.5194/cp-20-25-2024, 2024
Short summary
Short summary
The Oligocene and early Miocene periods featured dynamic glacial cycles on Antarctica. In this paper, we use Sr isotopes in marine carbonate sediments to document a change in the location and intensity of continental weathering during short periods of very intense Antarctic glaciation. Potentially, the weathering intensity of old continental rocks on Antarctica was reduced during glaciation. We also show improved age models for correlation of Southern Ocean and North Atlantic sediments.
Amanda Gerotto, Hongrui Zhang, Renata Hanae Nagai, Heather M. Stoll, Rubens César Lopes Figueira, Chuanlian Liu, and Iván Hernández-Almeida
Biogeosciences, 20, 1725–1739, https://doi.org/10.5194/bg-20-1725-2023, https://doi.org/10.5194/bg-20-1725-2023, 2023
Short summary
Short summary
Based on the analysis of the response of coccolithophores’ morphological attributes in a laboratory dissolution experiment and surface sediment samples from the South China Sea, we proposed that the thickness shape (ks) factor of fossil coccoliths together with the normalized ks variation, which is the ratio of the standard deviation of ks (σ) over the mean ks (σ/ks), is a robust and novel proxy to reconstruct past changes in deep ocean carbon chemistry.
Paula Diz, Víctor González-Guitián, Rita González-Villanueva, Aida Ovejero, and Iván Hernández-Almeida
Earth Syst. Sci. Data, 15, 697–722, https://doi.org/10.5194/essd-15-697-2023, https://doi.org/10.5194/essd-15-697-2023, 2023
Short summary
Short summary
Benthic foraminifera are key components of the ocean benthos and marine sediments. Determining their geographic distribution is highly relevant for improving our understanding of the recent and past ocean benthic ecosystem and establishing adequate conservation strategies. Here, we contribute to this knowledge by generating an open-access database of previously documented quantitative data of benthic foraminifera species from surface sediments of the eastern Pacific (BENFEP).
Jessica G. M. Crumpton-Banks, Thomas Tanner, Ivan Hernández Almeida, James W. B. Rae, and Heather Stoll
Biogeosciences, 19, 5633–5644, https://doi.org/10.5194/bg-19-5633-2022, https://doi.org/10.5194/bg-19-5633-2022, 2022
Short summary
Short summary
Past ocean carbon is reconstructed using proxies, but it is unknown whether preparing ocean sediment for one proxy might damage the data given by another. We have tested whether the extraction of an organic proxy archive from sediment samples impacts the geochemistry of tiny shells also within the sediment. We find no difference in shell geochemistry between samples which come from treated and untreated sediment. This will help us to maximize scientific return from valuable sediment samples.
José Guitián, Miguel Ángel Fuertes, José-Abel Flores, Iván Hernández-Almeida, and Heather Stoll
Biogeosciences, 19, 5007–5019, https://doi.org/10.5194/bg-19-5007-2022, https://doi.org/10.5194/bg-19-5007-2022, 2022
Short summary
Short summary
The effect of environmental conditions on the degree of calcification of marine phytoplankton remains unclear. This study implements a new microscopic approach to quantify the calcification of ancient coccolithophores, using North Atlantic sediments. Results show significant differences in the thickness and shape factor of coccoliths for samples with minimum dissolution, providing the first evaluation of phytoplankton physiology adaptation to million-year-scale variable environmental conditions.
Nele Manon Vollmar, Karl-Heinz Baumann, Mariem Saavedra-Pellitero, and Iván Hernández-Almeida
Biogeosciences, 19, 585–612, https://doi.org/10.5194/bg-19-585-2022, https://doi.org/10.5194/bg-19-585-2022, 2022
Short summary
Short summary
We studied recent (sub-)fossil remains of a type of algae (coccolithophores) off southernmost Chile and across the Drake Passage, adding to the scarce knowledge that exists in the Southern Ocean, a rapidly changing environment. We found that those can be used to reconstruct the surface ocean conditions in the north but not in the south. We also found variations in shape in the dominant species Emiliania huxleyi depending on the location, indicating subtle adaptations to environmental conditions.
Cited articles
Akiba, F.: Middle Miocene to Quaternary diatom biostratigraphy in the Nankai Trough and Japan Trench, and modified Lower Miocene through Quaternary diatom zones for middle-to-high latitudes of the North Pacific, in: Initial Reports of the Deep Sea Drilling Project, vol. 87, edited by: Kagami, H., Karig, D. E., Bray, C. J., Charvet, J., Coulbourn, W. T., Kinoshita, H., Lagoe, M. B., Lang, T. H., Lombari, G. A., Lundberg, N., Machihara, T., Mukhopadhyay, P., Smith, A. J., Stein, C. L., Taira, A., Akiba, F., Cadet, J.-P., Fujioka, K., Leggett, J. K., Matsumoto, R., Niitsuma, N., and Whalen, E., U.S. Government Printing Office, Washington D.C., 393–480, https://doi.org/10.2973/dsdp.proc.87.106.1986, 1986.
Amante, C. and Eakins, B. W.: ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis, NOAA Technical Memorandum NESDIS NGDC-24, National Geophysical Data Center, NOAA [data set], https://doi.org/10.7289/V5C8276M, 2009.
Baldauf, J. G. and Barron, J. A.: Diatom biostratigraphy: Kerguelen Plateau and Prydz Bay regions of the Southern Ocean, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 119, edited by: Barron, J. A., Larsen, B., Baldauf, J. G., Alibert, C., Berkowitz, S., Caulet, J.-P., Chambers, S. R., Cooper, A. K., Cranston, R. E., Dorn, W. U., Ehrmann, W. U., Fox, R. D., Fryxell, G. A., Hambrey, M. J., Huber, B. T., Jenkins, C. J., Kang, S.-H., Keating, B. H., Mehl, K. W., Noh, I., Ollier, G., Pittenger, A., Sakai, H., Schroder, C. J., Solheim, A., Stockwell, D. A., Thierstein, H. R., Tocher, B., Turner, B. R., Wei, W., Mazzullo, E. K., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 547–598, https://doi.org/10.2973/odp.proc.sr.119.135.1991, 1991.
Berggren, W. A.: Paleogene planktonic foraminifer magnetobiostratigraphy of the southern Kerguelen Plateau (Sites 747–749), in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 120, edited by: Wise Jr., S. W., Schlich, R., Palmer-Julson, A. A., Aubry, M.-P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J. R., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E. L., Quilty, P. G., Rack, F., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H., Zachos, J., and Barbu, E. M., College Station, TX (Ocean Drilling Program), 551–568, https://doi.org/10.2973/odp.proc.sr.120.151.1992, 1992a.
Berggren, W. A.: Neogene planktonic foraminifer magnetobiostratigraphy of the southern Kerguelen Plateau (Sites 747, 748, and 751), in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 120, edited by: Wise Jr., S. W., Schlich, R., Palmer-Julson, A. A., Aubry, M.-P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J. R., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E. L., Quilty, P. G., Rack, F., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H., Zachos, J., and Barbu, E. M., College Station, TX (Ocean Drilling Program), 631–647, https://doi.org/10.2973/odp.proc.sr.120.153.1992, 1992b.
Berggren, W. A., Kent, D. V., Flynn, J. J., and Van Couvering, J. A.: Cenozoic geochronology, GSA Bulletin, 96, 1407–1418, 1985.
Bohaty, S. M., Wise Jr., S. W., Duncan, R. A., Moore, C. L., and Wallace, P. J.: Neogene diatom biostratigraphy, tephra stratigraphy, and chronology of ODP Hole 1138A, Kerguelen Plateau, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 183, edited by: Frey, F. A., Coffin, M. F., Wallace, P. J., and Quilty, P. G., 1–53, https://doi.org/10.2973/odp.proc.sr.183.016.2003, 2003.
Burckle, L. H., Gersonde, R., and Abrams, N.: Late Pliocene-Pleistocene Paleoclimate in the Jane Basin Region ODP Site 697, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S.P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 803–809, https://doi.org/10.2973/odp.proc.sr.113.203.1990, 1990.
Cande, S. C. and Kent, D. V.: Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 100, 6093–6095, 1995.
Caulet, J.-P.: Radiolarians from the Kerguelen Plateau, Leg 119, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 119, edited by: Barron, J. A., Larsen, B., Baldauf, J. G., Alibert, C., Berkowitz, S., Caulet, J.-P., Chambers, S. R., Cooper, A. K., Cranston, R. E., Dorn, W. U., Ehrmann, W. U., Fox, R. D., Fryxell, G. A., Hambrey, M. J., Huber, B. T., Jenkins, C. J., Kang, S.-H., Keating, B. H., Mehl, K. W., Noh, I., Ollier, G., Pittenger, A., Sakai, H., Schroder, C. J., Solheim, A., Stockwell, D. A., Thierstein, H. R., Tocher, B., Turner, B. R., Wei, W., Mazzullo, E. K., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 513–546, https://doi.org/10.2973/odp.proc.sr.119.137.1991, 1991.
Civile, D., Lodolo, E., Vuan, A., and Loreto, M. F.: Tectonics of the Scotia–Antarctica plate boundary constrained from seismic and seismological data, Tectonophysics, 550–553, 17–34, https://doi.org/10.1016/j.tecto.2012.05.002, 2012.
Cody, R. D., Levy, R. H., Harwood, D. M., and Sadler, P. M.: Thinking outside the zone: High-resolution quantitative diatom biochronology for the Antarctic Neogene, Palaeogeogr. Palaeocl., 260, 92–121, 2008.
Cody, R., Levy, R., Crampton, J., Naish, T., Wilson, G., and Harwood, D.: Selection and stability of quantitative stratigraphic age models: Plio-Pleistocene glaciomarine sediments in the ANDRILL 1B drillcore, McMurdo Ice Shelf, Global Planet. Change, 96–97, 143–156, 2012.
Florindo, F., Farmer, R. K., Harwood, D. M., Cody, R. D., Levy, R., Bohaty, S. M., Carter, L., and Winkler, A.: Paleomagnetism and biostratigraphy of sediments from Southern Ocean ODP Site 744 (southern Kerguelen Plateau): Implications for early-to-middle Miocene climate in Antarctica, Global Planet. Change, 110, 434–454, 2013.
Gales, J. A., McKay, R. M., De Santis, L., Rebesco, M., Laberg, J. S., Shevenell, A. E., Harwood, D., Leckie, R. M., Kulhanek, D. K., King, M., Patterson, M., Lucchi, R. G., Kim, S., Kim, S., Dodd, J., Seidenstein, J., Prunella, C., Ferrante, G. M., and IODP Expedition 374 Scientists: Climate-controlled submarine landslides on the Antarctic continental margin, Nat. Commun., 14, 2714, https://doi.org/10.1038/s41467-023-38240-y, 2023.
Gersonde, R. and Bárcena, M. A.: Revision of the upper Pliocene: Pleistocene diatom biostratigraphy for the northern belt of the Southern Ocean, Micropaleontology, 44, 84–98, https://doi.org/10.2307/1486086, 1998.
Gersonde, R. and Burckle, L. H.: Neogene Diatom Biostratigraphy of ODP Leg 113, Weddell Sea (Antarctic Ocean), in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 761–789, https://doi.org/10.2973/odp.proc.sr.113.126.1990, 1990.
Gersonde, R., Abelmann, A., Burckle, L. H., Hamilton, N., Lazarus, D., Mccartney, K., O'Brien, P., Spieß, V., and Wise Jr., S. W.: Biostratigraphic synthesis of Neogene siliceous microfossils from the Antarctic ocean, ODP Leg 113 (Weddell Sea), in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 915–936, https://doi.org/10.2973/odp.proc.sr.113.209.1990, 1990.
Harwood, D. M. and Maruyama, T.: Middle Eocene to Pleistocene diatom biostratigraphy of Southern Ocean sediments from the Kerguelen Plateau, Leg 120, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 120, edited by: Wise Jr., S. W., Schlich, R., Palmer-Julson, A. A., Aubry, M.-P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J. R., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E. L., Quilty, P. G., Rack, F. R., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H., Zachos, J., and Barbu, E. M., College Station, TX (Ocean Drilling Program), 683–733, https://doi.org/10.2973/odp.proc.sr.120.160.1992, 1992.
Harwood, D. M., Lazarus, D. B., Abelmann, A., Aubry, M.-P., Berggren, W. A., Heider, F., Inokuchi, H., Maruyama, I., McCartney, K., Wei, W., and Wise Jr., S. W.: Neogene integrated magnetobiostratigraphy of the central Kerguelen Plateau, Leg 120, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 120, edited by: Wise Jr., S. W., Schlich, R., Palmer-Julson, A. A., Aubry, M.-P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J. R., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E. L., Quilty, P. G., Rack, F. R., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H., Zachos, J., and Barbu, E. M., College Station, TX (Ocean Drilling Program), 1031–1052, https://doi.org/10.2973/odp.proc.sr.120.185.1992, 1992.
Iwai, M. and Winter, D.: Data report: taxonomic notes of Neogene diatoms from the western Antarctic peninsula: Ocean Drilling Program Leg 178, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 178, edited by: Barker, P. F., Camerlenghi, A., Acton, G. D., and Ramsay, A. T. S., College Station, TX (Ocean Drilling Program), 1–57, https://doi.org/10.2973/odp.proc.sr.178.239.2002, 2002.
Iwai, M., Acton, G. D., Lazarus, D., Osterman, L. E., and Williams, T.: Magnetobiochronologic synthesis of ODP Leg 178 rise sediments from the Pacific sector of the Southern Ocean: Sites 1095, 1096, and 1101, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 178, edited by: Barker, P. F., Camerlenghi, A., Acton, G. D., and Ramsay, A. T. S., College Station, TX (Ocean Drilling Program), 1–40, https://doi.org/10.2973/odp.proc.sr.178.236.2002, 2002.
Jordan, R. W. and Priddle, J.: Fossil members of the diatom genus Proboscia, Diatom Res., 6, 55–61, https://doi.org/10.1080/0269249X.1991.9705147, 1991.
Kennett, J. P. and Barker, P. F.: Latest Cretaceous to Cenozoic climate and oceanographic developments in the Weddell Sea, Antarctica: an ocean-drilling perspective, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 937–960, https://doi.org/10.2973/odp.proc.sr.113.195.1990, 1990.
Lazarus, D.: Middle Miocene to Recent Radiolarians from the Weddell Sea, Antarctica, ODP Leg 113, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C.M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 709–727, https://doi.org/10.2973/odp.proc.sr.113.132.1990, 1990.
Lazarus, D.: Antarctic Neogene radiolarians from the Kerguelen Plateau, Legs 119 and 120, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 120, edited by: Wise, S. W., Jr., Schlich, R., Palmer-Julson, A. A., Aubry, M.-P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J. R., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E. L., Quilty, P. G., Rack, F. R., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H., Zachos, J., and Barbu, E. M., College Station, TX (Ocean Drilling Program), 785–802, https://doi.org/10.2973/odp.proc.sr.120.192.1992, 1992.
Lazarus, D. B.: Late Miocene to early Pliocene radiolarians from glaciomarine drift deposits, ODP Leg 178, Hole 1095B (Bellinghausen Basin, Antarctic Ocean), in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 178, edited by: Barker, P. F., Camerlenghi, A., Acton, G. D., and Ramsay, A. T. S., College Station, TX (Ocean Drilling Program), 1–22, https://doi.org/10.2973/odp.proc.sr.178.218.2001, 2001.
Lazarus, D.: Environmental control of diversity, evolutionary rates and taxa longevities in Antarctic Neogene radiolaria, Palaeontol. Electron., 5, 1–32, 2002.
Lloyd, F. W.: Zanclean (early Pliocene) sediment records of ice-sheet instability at ODP Site 697 (Jane Basin), NW Weddell Sea, South Orkney microcontinent. Learning Science Through Research, Short Contributions, Keck Geology Consortium, 31, 1–7, https://doi.org/10.18277/AKRSG.2019.31.24, 2018.
McCollum, D. W.: Diatom stratigraphy of the Southern Ocean, in: Initial Reports of the Deep Sea Drilling Project, vol. 28, edited by: Hayes, D. E., Frakes, L. A., Barrett, P. J., Burns, D. A., Chen, P.-H., Ford, A. B., Kaneps, A. G., Kemp, E. M., McCollum, D. W., Piper, D. J. W., Wall, R. E., and Webb, P. N., U.S. Government Printing Office, Washington D.C., 515–571, https://doi.org/10.2973/dsdp.proc.28.112.1975, 1975.
McKay, R., Naish, T., Carter, L., Riesselman, C., Dunbar, R., Sjunneskog, C., Winter, D., Sangiorgi, F., Warren, C., Pagani, M., Schouten, S., Willmott, V., Levy, R., DeConto, R., and Powell, R. D.: Antarctic and Southern Ocean influences on Late Pliocene global cooling, P. Natl. Acad. Sci. USA, 109, 6423–6428, https://doi.org/10.1073/pnas.1112248109, 2012.
Mutterlose, J. and Wise Jr., S. W.: Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off East Antarctica, Weddell Sea. in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 325–351, https://doi.org/10.2973/odp.proc.sr.113.143.1990, 1990.
O'Connell, S. and Ortiz, J.: Multiple Proxies for Investigating Glacial History of Antarctica From ODP Sites 696 & 697. Learning Science Through Research, Short Contributions, Keck Geology Consortium, 31, 1–6, https://doi.org/10.18277/AKRSG.2019.31.20, 2018.
Ogg, J. G.: Geomagnetic polarity time scale, in: Geologic Time Scale 2020 edited by: Gradstein, F. M., Ogg, J. G., Schmitz, M. D., and Ogg, G. M., Elsevier, Amsterdam, Oxford, Cambridge, 159–192, 2020.
Orsi, A. H., Whitworth, T., and Nowlin, W. D.: On the meridional extent and fronts of the Antarctic Circumpolar Current, Deep-Sea Res., 42, 641–673, https://doi.org/10.1016/0967-0637(95)00021-W, 1995.
Pérez, L. F., Bohoyo, F., Hernández-Molina, F. J., Casas, D., Galindo-Zaldívar, J., Ruano, P., and Maldonado, A.: Tectonic activity evolution of the Scotia-Antarctic Plate boundary from mass transport deposit analysis, J. Geophys. Res.-Sol. Ea., 121, 2216–2234, https://doi.org/10.1002/2015JB012622, 2016.
Pérez, L. F., Henández-Molina, F. J., Lodolo, E., Bohoyo, F., Galindo-Zaldívar, J., and Maldonado, A.: Oceanographic and climatic consequences of the tectonic evolution of the southern scotia sea basins, Antarctica, Earth-Sci. Rev., 198, 102922, https://doi.org/10.1016/j.earscirev.2019.102922, 2019.
Pospichal, J. J. and Wise Jr., S. W.: Maestrichtian calcareous nannofossil biostratigraphy of Maud Rise, ODP Leg 113 Sites 689 and 690, Weddell Sea, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 465–487, https://doi.org/10.2973/odp.proc.sr.113.124.1990, 1990.
Pudsey, C. J.: Grain Size and Diatom Content of Hemipelagic Sediments at Site 697, ODP Leg 113: A Record of Pliocene-Pleistocene Climate, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L.H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., Ocean Drilling Program, College Station, TX, 111–120, https://doi.org/10.2973/odp.proc.sr.113.147.1990, 1990.
Ramsay, A. T. S. and Baldauf, J. G.: A reassessment of the Southern Ocean biochronology, Kluwer, London, Memoir No. 18 of Geological Society of London, ISBN 1-86239-027-4, ISBN 978-1-86239-027-0, 1999.
Saavedra-Pellitero, M., Baumann, K.-H., Ullermann, J., and Lamy, F.: Marine Isotope Stage 11 in the Pacific sector of the Southern Ocean; a coccolithophore perspective, Quaternary Sci. Rev., 158, 1–14, https://doi.org/10.1016/j.quascirev.2016.12.020, 2017.
Scherer, R. P., Gladenkov, A. Y., and Barron, J. A.: Methods and applications of Cenozoic marine diatom biostratigraphy, The Paleontological Society Papers, 13, 61–83, https://doi.org/10.1017/S1089332600001467, 2007.
Shipboard Scientific Party: Site 697, in: Proc. ODP, Init. Repts., 113, edited by: Barker, P. F., Kennett, J. P., O'Connell, S., Berkowitz, S. P., Bryant, W. R., Burckle, L. H., Egeberg, P. K., Fuetterer, D. K., Gersonde, R. E., Golovchenko, X., Hamilton, N., Lawver, L. A., Lazarus, D. B., Lonsdale, M. J., Mohr, B. A., Nagao, T., Pereira, C. P. G., Pudsey, C. J., Robert, C. M., Schandl, E. S., Spieß, V., Stott, L. D., Thomas, E., Thompson, K. F. M., Wise Jr., S. W., and Stewart, N. J., College Station, TX (Ocean Drilling Program), 705–774, https://doi.org/10.2973/odp.proc.ir.113.113.1988, 1988.
Sjunneskog, C., Riesselman, C., Winter, D., and Scherer, R.: Fragilariopsis diatom evolution in Pliocene and Pleistocene Antarctic shelf sediments, Micropaleontology, 58, 273–289, 2012.
Tauxe, L., Stickley, C. E., Sugisaki, S., Bijl, P. K., Bohaty, S. M., Brinkhuis, H., Escutia, C., Flores, J. A., Houben, A. J. P., Iwai, M., Jiménez-Espejo, F., McKay, R., Passchier, S., Pross, J., Riesselman, C. R., Röhl, U., Sangiorgi, F., Welsh, K., Klaus, A., Fehr, A., Bendle, J. A. P., Dunbar, R., Gonzàlez, J., Hayden, T., Katsuki, K., Olney, M. P., Pekar, S. F., Shrivastava, P. K., van de Flierdt, T., Williams, T., and Yamane, M.: Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction, Paleoceanography, 27, PA2214, https://doi.org/10.1029/2012pa002308, 2012.
Tetard, M., Marchant, R., Cortese, G., Gally, Y., de Garidel-Thoron, T., and Beaufort, L.: Technical note: A new automated radiolarian image acquisition, stacking, processing, segmentation and identification workflow, Clim. Past, 16, 2415–2429, https://doi.org/10.5194/cp-16-2415-2020, 2020.
Vigour, R. and Lazarus, D.: Biostratigraphy of late Miocene-early Pliocene radiolarians from ODP Leg 183 Site 1381, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 183, edited by: Frey, F. A., Coffin, M. F., Wallace, P. J., and Quilty, P. G., College Station, TX (Ocean Drilling Program), 1–17, https://doi.org/10.2973/odp.proc.sr.183.007.2002, 2002.
Weaver, F. M. and Gombos Jr., A. M.: Southern high-latitude diatom biostratigraphy, in: The Deep Sea Drilling Project: A Decade of Progress, vol. 32, edited by: Warme, J. E., Douglas, R. G., and Winterer, E. L., SEPM Society for Sedimentary Geology, 445–470, https://doi.org/10.2110/pec.81.32.0445, 1981.
Winter, D. and Iwai, M.: Data report: Neogene diatom biostratigraphy, Antarctic Peninsula Pacific margin, ODP Leg 178 rise sites, in: Proceedings of the Ocean Drilling Program, Scientific Results, vol. 178, edited by: Barker, P. F., Camerlenghi, A., Acton, G. D., and Ramsay, A. T. S., College Station, TX (Ocean Drilling Program), 1–25., https://doi.org/10.2973/odp.proc.sr.178.230.2002, 2002.
Winter, D., Sjunneskog, C., Scherer, R., Maffioli, P., Riesselman, C., and Harwood, D.: Pliocene–Pleistocene diatom biostratigraphy of nearshore Antarctica from the AND-1B drillcore, McMurdo Sound, Global Planet. Change, 96–97, 59–74, https://doi.org/10.1016/j.gloplacha.2010.04.004, 2012.
Yanagisawa, Y. and Akiba, F.: Taxonomy and phylogeny of the three marine diatom genera, Crucidenticula, Denticulopsis and Neodenticula, Bulletin of the Geological Survey of Japan, 41, 197–301, 1990.
Zielinski, U. and Gersonde, R.: Plio-Pleistocene diatom biostratigraphy from ODP Leg 177, Atlantic sector of the Southern Ocean, Mar. Micropaleontol., 45, 225–268, https://doi.org/10.1016/S0377-8398(02)00031-2, 2002.
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...