Articles | Volume 21, issue 8
https://doi.org/10.5194/cp-21-1431-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-21-1431-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Aug 2025
Research article |
| 08 Aug 2025
| 08 Aug 2025
Biosiliceous and geochemical response to biotic and climatic events in the Palaeocene
Institute of Marine and Environmental Sciences, University of Szczecin, 70-383 Szczecin, Poland
Doctoral School, University of Szczecin, 70-383 Szczecin, Poland
Steve Bohaty
Institute of Earth Sciences, University of Heidelberg, 69120 Heidelberg, Germany
Johan Renaudie
FB1 Dynamik der Natur, Museum für Naturkunde, 10115 Berlin, Germany
Jakub Witkowski
Institute of Marine and Environmental Sciences, University of Szczecin, 70-383 Szczecin, Poland
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Cited articles
Alegret, L., Ortiz, S., Arreguín-Rodríguez, G. J., Monechi, S., Millán, I., and Molina, E.: Microfossil turnover across the uppermost Danian at Caravaca, Spain: Paleoenvironmental inferences and identification of the latest Danian event, Palaeogeogr. Palaeocl., 463, 45–59, https://doi.org/10.1016/j.palaeo.2016.09.013, 2016. a, b
Barnet, J. S. K., Littler, K., Westerhold, T., Kroon, D., Leng, M. J., Bailey, I., Röhl, U., and Zachos, J. C.: A High‐Fidelity Benthic Stable Isotope Record of Late Cretaceous–Early Eocene Climate Change and Carbon‐Cycling, Paleoceanography and Paleoclimatology, 34, 672–691, https://doi.org/10.1029/2019PA003556, 2019. a, b
Bernaola, G., Baceta, J. I., Orue-Etxebarria, X., Alegret, L., Martin-Rubio, M., Arostegui, J., and Dinares-Turell, J.: Evidence of an abrupt environmental disruption during the mid-Paleocene biotic event (Zumaia section, western Pyrenees), GSA Bulletin, 119, 785–795, https://doi.org/10.1130/B26132.1, 2007. a, b
Berner, R. A., Lasaga, A. C., and Garrels, R. M.: The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the past 100 million years, Am. J. Sci., 283, 641–683, https://doi.org/10.2475/ajs.283.7.641, 1983. a
Boersma, A., Shackleton, N. J., Hall, M., and Given, Q.: Carbon and oxygen isotope records at DSDP site 384 (North Atlantic) and some Paleocene paleotemperatures and carbon isotope variations in the Atlantic ocean, in: Initial Reports of the Deep Sea Drilling Project, 43, edited by: Tucholke, B. E., Vogt, P. R., Murdmaa, I. O., Rothe, P., Houghton, R. L., Galehouse, J. S., Kaneps, A., McNulty Jr., C. L., Okada H., Kendrick, J. W., Demars, K. R., and McCave, I. N., vol. 43 of Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, https://doi.org/10.2973/dsdp.proc.43.1979, 1979. a
Bornemann, A., Schulte, P., Sprong, J., Steurbaut, E., Youssef, M., and Speijer, R. P.: Latest Danian carbon isotope anomaly and associated environmental change in the southern Tethys (Nile Basin, Egypt), J. Geol. Soc., 166, 1135–1142, https://doi.org/10.1144/0016-76492008-104, 2009. a, b
Bowen, G. J., Beerling, D. J., Koch, P. L., Zachos, J. C., and Quattlebaum, T.: A humid climate state during the Palaeocene/Eocene thermal maximum, 432, 495–499, Nature, https://doi.org/10.1038/nature03115, 2004. a
Bralower, T. J., Premoli Silva, I., Malone, M. J., and Scientific Participants Of Leg 198: New evidence for abrupt climate change in the Cretaceous and Paleogene: An Ocean Drilling Program expedition to Shatsky Rise, northwest Pacific, GSA Today, 12, 4–10, https://doi.org/10.1130/1052-5173(2002)012<0004:NEFACC>2.0.CO;2, 2002. a, b, c
Coccioni, R., Frontalini, F., Catanzariti, R., Jovane, L., Rodelli, D., Rodrigues, I. M., Savian, J. F., Giorgioni, M., and Galbrun, B.: Paleoenvironmental signature of the Selandian-Thanetian Transition Event (STTE) and Early Late Paleocene Event (ELPE) in the Contessa Road section (western Neo-Tethys), Palaeogeogr. Palaeocl., 523, 62–77, https://doi.org/10.1016/j.palaeo.2019.03.023, 2019. a, b
Dinarès‐Turell, J., Pujalte, V., Stoykova, K., Baceta, J. I., and Ivanov, M.: The Palaeocene “top chron C27n” transient greenhouse episode: evidence from marine pelagic Atlantic and peri‐Tethyan sections, Terra Nova, 24, 477–486, https://doi.org/10.1111/j.1365-3121.2012.01086.x, 2012. a, b
Figus, C., Bialik, O. M., Gladenkov, A. Y., Oreshkina, T. V., Renaudie, J., Smirnov, P., and Witkowski, J.: Climatic and tectonic controls on shallow-marine and freshwater diatomite deposition throughout the Palaeogene, Clim. Past, 20, 2629–2644, https://doi.org/10.5194/cp-20-2629-2024, 2024a. a
Foster, G. L., Royer, D. L., and Lunt, D. J.: Future climate forcing potentially without precedent in the last 420 million years, Nat. Commun., 8, 14845, https://doi.org/10.1038/ncomms14845, 2017. a
Foster, G. L., Hull, P., Lunt, D. J., and Zachos, J. C.: Placing our current “hyperthermal” in the context of rapid climate change in our geological past, Philos. T. Roy. Soc. A, 376, 20170086, https://doi.org/10.1098/rsta.2017.0086, 2018. a
Froelich, F. and Misra, S.: Was the Late Paleocene-Early Eocene Hot Because Earth Was Flat? An Ocean Lithium Isotope View of Mountain Building, Continental Weathering, Carbon Dioxide, and Earth's Cenozoic Climate, Oceanography, 27, 36–49, https://doi.org/10.5670/oceanog.2014.06, 2014. a
Gradstein, F. M., Ogg, J. G., Schmitz, M., and Ogg, G.: The Geologic Time Scale 2012 2-Volume Set, Elsevier Science, ISBN 978-0-444-59448-8, OCLC 956664433, 2012. a
Green, P. J. and Silverman, B. W.: Nonparametric regression and generalized linear models: a rougnhness penalty approch, no. 58 in Monographs on statistics and applied probability, Chapman & Hall, ISBN 978-0-412-30040-0, 1994. a
Haq, B. U., Hisatake, O., and Lohmann, G. P.: Paleobiogeography of the Paleocene/Eocene calcareous nannoplankton from the North Atlantic Ocean, in: Initial Reports of the Deep Sea Drilling Project, 43, edited by: Tucholke, B. E., Vogt, P. R., Murdmaa, I. O., Rothe, P., Houghton, R. L., Galehouse, J. S., Kaneps, A., McNulty Jr., C. L., Okada H., Kendrick, J. W., Demars, K. R., and McCave, I. N., vol. 43 of Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, https://doi.org/10.2973/dsdp.proc.43.1979, 1979. a
Hilgen, F. J., Abels, H. A., Kuiper, K. F., Lourens, L. J., and Wolthers, M.: Towards a stable astronomical time scale for the Paleocene: Aligning Shatsky Rise with the Zumaia – Walvis Ridge ODP Site 1262 composite, Newsl. Stratigr., 48, 91–110, https://doi.org/10.1127/nos/2014/0054, 2015. a, b, c, d
Hollis, C. J., Tayler, M. J., Andrew, B., Taylor, K. W., Lurcock, P., Bijl, P. K., Kulhanek, D. K., Crouch, E. M., Nelson, C. S., Pancost, R. D., Huber, M., Wilson, G. S., Ventura, G. T., Crampton, J. S., Schiøler, P., and Phillips, A.: Organic-rich sedimentation in the South Pacific Ocean associated with Late Paleocene climatic cooling, Earth-Sci. Rev., 134, 81–97, https://doi.org/10.1016/j.earscirev.2014.03.006, 2014. a, b, c, d, e, f, g
Hollis, C. J., Naeher, S., Clowes, C. D., Naafs, B. D. A., Pancost, R. D., Taylor, K. W. R., Dahl, J., Li, X., Ventura, G. T., and Sykes, R.: Late Paleocene CO2 drawdown, climatic cooling and terrestrial denudation in the southwest Pacific, Clim. Past, 18, 1295–1320, https://doi.org/10.5194/cp-18-1295-2022, 2022. a
Hyland, E. G., Sheldon, N. D., and Cotton, J. M.: Terrestrial evidence for a two-stage mid-Paleocene biotic event, Palaeogeogr. Palaeocl., 417, 371–378, https://doi.org/10.1016/j.palaeo.2014.09.031, 2015. a, b
Jehle, S., Bornemann, A., Lägel, A. F., Deprez, A., and Speijer, R. P.: Paleoceanographic changes across the Latest Danian Event in the South Atlantic Ocean and planktic foraminiferal response, Palaeogeogr. Palaeocl., 525, 1–13, https://doi.org/10.1016/j.palaeo.2019.03.024, 2019. a
Kennett, J. P. and Stott, L. D.: Abrupt deep-sea warming, palaeoceanographic changes and benthic extinctions at the end of the Palaeocene, Nature, 353, 225–229, https://doi.org/10.1038/353225a0, 1991. a
Kiessling, W., Reddin, C. J., Dowding, E. M., Dimitrijević, D., Raja, N. B., and Kocsis, A. T.: Marine biological responses to abrupt climate change in deep time, Paleobiology, 50, 1–15, https://doi.org/10.1017/pab.2024.20, 2024. a
Li, J., Hu, X., Garzanti, E., Boudagher-Fadel, M., Jiang, J., and Xu, Y.: The record of the Early Late Paleocene Event (ELPE, 59.5 Ma) in shallow-water Tethys Himalayan carbonates (Zongpu Formation, South Tibet), J. Sediment. Res., 94, 937–952, https://doi.org/10.2110/jsr.2023.022, 2024. a, b, c, d, e
Littler, K., Röhl, U., Westerhold, T., and Zachos, J. C.: A high-resolution benthic stable-isotope record for the South Atlantic: Implications for orbital-scale changes in Late Paleocene–Early Eocene climate and carbon cycling, Earth Planet. Sc. Lett., 401, 18–30, https://doi.org/10.1016/j.epsl.2014.05.054, 2014. a, b, c, d, e, f, g
McInerney, F. A. and Wing, S. L.: The Paleocene-Eocene Thermal Maximum: A Perturbation of Carbon Cycle, Climate, and Biosphere with Implications for the Future, Annu. Rev. Earth Pl. Sc., 39, 489–516, https://doi.org/10.1146/annurev-earth-040610-133431, 2011. a
Olivarez Lyle, A. and Lyle, M.: Determination of biogenic opal in pelagic marine sediments: a simple method revisited, in: Proceedings of the Ocean Drilling Program, 199 Initial Reports, edited by: Lyle, M. W., Wilson, P. A., Janecek, T. R., Backman, J., Busch, W. H., Coxall, H. K., Faul, K., Gaillot, P., Hovan, S. A., Knoop, P., Kruse, S., Lanci, L., Lear, C., Moore, T. C., Nigrini, C. A., Nishi, H., Nomura, R., Norris, R. D., Pälike, H., Parés, J. M., Quintin, L., Raffi, I., Rea, B. R., Rea, D. K., Steiger, T. H., Tripati, A., Vanden Berg, M. D., and Wade, B., vol. 199 of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.199.2002, 2002. a
Penman, D. E.: Silicate weathering and North Atlantic silica burial during the Paleocene-Eocene Thermal Maximum, Geology, 44, 731–734, https://doi.org/10.1130/G37704.1, 2016. a
Penman, D. E., Hönisch, B., Zeebe, R. E., Thomas, E., and Zachos, J. C.: Rapid and sustained surface ocean acidification during the Paleocene‐Eocene Thermal Maximum, Paleoceanography, 29, 357–369, https://doi.org/10.1002/2014PA002621, 2014. a
Penman, D. E., Keller, A., D'haenens, S., Kirtland Turner, S., and Hull, P. M.: Atlantic Deep‐Sea Cherts Associated With Eocene Hyperthermal Events, Paleoceanography and Paleoclimatology, 34, 287–299, https://doi.org/10.1029/2018PA003503, 2019. a
Petrizzo, M. R.: An Early Late Paleocene Event on Shatsky Rise, northwest Pacific ocean (ODP Leg 198): evidence from planktonic foraminiferal assemblages, in: Proceedings of the Ocean Drilling Program, 198 Scientific Results, edited by: Bralower, T., Premoli Silva, I., and Malone, M., vol. 198 of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.sr.198.2006, 2006. a, b, c, d, e
R Core Team: R: A Language and Environment for Statistical Computing, R Foundation for Statistical Computing, Vienna, Austria, https://www.R-project.org/ (last access: 9 December 2024), 2024. a
Renaudie, J., Drews, E.-L., and Böhne, S.: The Paleocene record of marine diatoms in deep-sea sediments, Foss. Rec., 21, 183–205, https://doi.org/10.5194/fr-21-183-2018, 2018. a
Rice, S., Freund, H., Huang, W., Clouse, J., and Isaacs, C.: Application of Fourier Transform Infrared Spectroscopy to Silica Diagenesis: The Opal-A to Opal-Ct Transformation, SEPM Journal of Sedimentary Research, 65A, 639–647, https://doi.org/10.1306/D4268185-2B26-11D7-8648000102C1865D, 1995. a
Sarkar, S., Cotton, L. J., Valdes, P. J., and Schmidt, D. N.: Shallow Water Records of the PETM: Novel Insights From NE India (Eastern Tethys), Paleoceanography and Paleoclimatology, 37, e2021PA004257, https://doi.org/10.1029/2021PA004257, 2022. a
Shipboard Scientific Party: Site 208, in: Initial Reports of the Deep Sea Drilling Project, 21, edited by: Burns, R. E., Andews, J. E., van der Lingen, G. J., Churkin Jr., M., Galehouse, J. S., Packman, G. H., Davies, T. A., Kennett, J. P., Dumitrica, P., Edwards, A. R., and Von Herzen, R. P., vol. 21 of Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, https://doi.org/10.2973/dsdp.proc.21.1973, 1973. a, b
Shipboard Scientific Party: Site 384: the Cretaceous/Tertiary boundary, Aptian reefs, and the J-Anomaly Ridge, in: Initial Reports of the Deep Sea Drilling Project, 43, edited by: Tucholke, B. E., Vogt, P. R., Murdmaa, I. O., Rothe, P., Houghton, R. L., Galehouse, J. S., Kaneps, A., McNulty Jr., C. L., Okada H., Kendrick, J. W., Demars, K. R., and McCave, I. N., vol. 43 of Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, https://doi.org/10.2973/dsdp.proc.43.1979, 1979. a, b, c, d
Shipboard Scientific Party: Site 700, in: Proceedings of the Ocean Drilling Program, 114 Initial Reports, edited by: Ciesielski, P. F., Kristoffersen, Y., Clement, B., Blangy, J.-P., Bourrouilh, R., Crux, J. A., Fenner, J. M., Froelich, P. N., Hailwood, E., Hodell, D., Katz, M. E., Ling, H. Y., Mienert, J., Müller, D., Mwenifumbo, C. J., Nobes, D. C., Nocchi, M., Warnke, D. A., and Westall, F., vol. 114 of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.114.1988, 1988. a, b, c
Shipboard Scientific Party: Site 752, in: Proceedings of the Ocean Drilling Program, 121 Initial Reports, edited by: Peirce, J., Weissel, J., Taylor, E., Dehn, J., Driscoll, N., Farrell, J., Fourtanier, E., Frey, F., Gamson, P. D., Gee, J. S., Gibson, I. L., Janecek, T., Klootwijk, C., Lawrence, J. R., Littke, R., Newman, J. S., Nomura, R., Owen, R. M., Pospichal, J. J., Rea, D. R., Resiwati, P., Saunders, A. D., Smit, J., Smith, G. M., Tamaki, K., Weis, D., and Wilkinson, C., vol. 121 of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.121.1989, 1989. a, b
Shipboard Scientific Party: Site 1050, in: Proceedings of the Ocean Drilling Program 171B Initial Reports, edited by: Norris, R., Kroon, D., and Klaus, A., vol. 171B of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.171B.1998, 1998a. a, b, c, d
Shipboard Scientific Party: Site 1051, in: Proceedings of the Ocean Drilling Program 171B Initial Reports, edited by: Norris, R., Kroon, D., and Klaus, A., vol. 171B of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.171B.1998, 1998b. a, b
Shipboard Scientific Party: Site 1121: the Campbell “Drift”, in: Proceedings of the Ocean Drilling Program, 181 Initial Reports, edited by: Carter, R. M., McCave, I. N., Richter, C., Carter, L., Aita, Y., Buret, C., Di Stefano, A., Fenner, J., Fothergill, P., Gradstein, F., Hall, I., Handwerger, D., Harris, S., Hayward, B., Hu, S., Joseph, L., Khim, B. K., Lee, Y.-D., Millwood, L., Rinna, J., Smith, G., Suzuki, A., Weedon, G., Wei, K.-Y., Wilson, G., and Winkler, A., vol. 181 of Proceedings of the Ocean Drilling Program, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.ir.181.2000, 2000. a, b
Sprong, J., Kouwenhoven, T. J., Bornemann, A., Schulte, P., Stassen, P., Steurbaut, E., Youssef, M., and Speijer, R. P.: Characterization of the Latest Danian Event by means of benthic foraminiferal assemblages along a depth transect at the southern Tethyan margin (Nile Basin, Egypt), Mar. Micropaleontol., 86–87, 15–31, https://doi.org/10.1016/j.marmicro.2012.01.001, 2012. a
Westerhold, T., Röhl, U., Raffi, I., Fornaciari, E., Monechi, S., Reale, V., Bowles, J., and Evans, H. F.: Astronomical calibration of the Paleocene time, Palaeogeogr. Palaeocl., 257, 377–403, https://doi.org/10.1016/j.palaeo.2007.09.016, 2008. a, b, c
Westerhold, T., Röhl, U., Donner, B., and Zachos, J. C.: Global Extent of Early Eocene Hyperthermal Events: A New Pacific Benthic Foraminiferal Isotope Record From Shatsky Rise (ODP Site 1209), Paleoceanography and Paleoclimatology, 33, 626–642, https://doi.org/10.1029/2017PA003306, 2018. a, b
Westerhold, T., Marwan, N., Drury, A. J., Liebrand, D., Agnini, C., Anagnostou, E., Barnet, J. S. K., Bohaty, S. M., De Vleeschouwer, D., Florindo, F., Frederichs, T., Hodell, D. A., Holbourn, A. E., Kroon, D., Lauretano, V., Littler, K., Lourens, L. J., Lyle, M., Pälike, H., Röhl, U., Tian, J., Wilkens, R. H., Wilson, P. A., and Zachos, J. C.: An astronomically dated record of Earth's climate and its predictability over the last 66 million years, Science, 369, 1383–1387, https://doi.org/10.1126/science.aba6853, 2020. a, b
Witkowski, J., Penman, D. E., Bryłka, K., Wade, B. S., Matting, S., Harwood, D. M., and Bohaty, S. M.: Early Paleogene biosiliceous sedimentation in the Atlantic Ocean: Testing the inorganic origin hypothesis for Paleocene and Eocene chert and porcellanite, Palaeogeogr. Palaeocl., 556, 109896, https://doi.org/10.1016/j.palaeo.2020.109896, 2020. a
Witkowski, J., Bryłka, K., Bohaty, S. M., Mydłowska, E., Penman, D. E., and Wade, B. S.: North Atlantic marine biogenic silica accumulation through the early to middle Paleogene: implications for ocean circulation and silicate weathering feedback, Clim. Past, 17, 1937–1954, https://doi.org/10.5194/cp-17-1937-2021, 2021. a, b, c, d, e
Yanchilina, A., Yam, R., Kolodny, Y., and Shemesh, A.: From diatom opal-A δ18O to chert δ18O in deep sea sediments, Geochim. Cosmochim. Ac., 268, 368–382, https://doi.org/10.1016/j.gca.2019.10.018, 2020. a
Zachos, J. C., Dickens, G. R., and Zeebe, R. E.: An early Cenozoic perspective on greenhouse warming and carbon-cycle dynamics, Nature, 451, 279–283, https://doi.org/10.1038/nature06588, 2008. a
Short summary
We examine trends in biosiliceous fluxes and isotopic records in the North and South Atlantic, South Pacific, and Indian oceans during two climatic and biotic events: the Latest Danian Event (LDE; ~62.2 Ma) and the Early Late Palaeocene Event (ELPE; ~59.2 Ma). Our results show a peak during the LDE and following the ELPE.
We examine trends in biosiliceous fluxes and isotopic records in the North and South Atlantic,...
