Articles | Volume 21, issue 5
https://doi.org/10.5194/bg-21-1213-2024
© 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/bg-21-1213-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Electron backscatter diffraction analysis unveils foraminiferal calcite microstructure and processes of diagenetic alteration
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
Sandra Piazolo
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
Eleanor H. John
School of Earth and Environmental Sciences, Cardiff University, Cardiff, CF10 3AT, UK
Richard Walshaw
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
Paul N. Pearson
School of Earth and Environmental Sciences, Cardiff University, Cardiff, CF10 3AT, UK
Caroline H. Lear
School of Earth and Environmental Sciences, Cardiff University, Cardiff, CF10 3AT, UK
Tracy Aze
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
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Cited articles
Arns, A. I., Evans, D., Schiebel, R., Fink, L., Mezger, M., Alig, E., Linckens, J., Jochum, K. P., Schmidt, M. U., Jantschke, A., and Haug, G. H.: Mesocrystalline Architecture in Hyaline Foraminifer Shells Indicates a Non-Classical Crystallisation Pathway, Geochem. Geophy. Geosy., 23, e2022GC010445, https://doi.org/10.1029/2022gc010445, 2022.
Aze, T., Ezard, T. H. G., Purvis, A., Coxall, H. K., Stewart, D. R. M., Wade, B. S., and Pearson, P. N.: A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data, Biol. Rev., 86, 900–927, https://doi.org/10.1111/j.1469-185x.2011.00178.x, 2011.
Barker, S., Greaves, M., and Elderfield, H.: A study of cleaning procedures used for foraminiferal paleothermometry, Geochem. Geophy. Geosy., 4, 8407, https://doi.org/10.1029/2003gc000559, 2003.
Berger, W.: Preservation of Foraminifera, in: Foraminiferal Ecology and Paleoecology, SEPM Society for Sedimentary Geology, https://doi.org/10.2110/scn.79.06.0105, 1979.
Berger, W. H.: Planktonic foraminifera: selective solution and the lysocline, Mar. Geol., 8, 111–138, 1970.
Birch, H., Coxall, H. K., Pearson, P. N., Kroon, D., and O'Regan, M.: Planktonic foraminifera stable isotopes and water column structure: Disentangling ecological signals, Mar. Micropaleontol., 101, 127–145, https://doi.org/10.1016/j.marmicro.2013.02.002, 2013.
Bonnin, E. A., Zhu, Z., Fehrenbacher, J. S., Russell, A. D., Hönisch, B., Spero, H. J., and Gagnon, A. C.: Submicron sodium banding in cultured planktic foraminifera shells, Geochim. Cosmochim. Ac., 253, 127–141, 2019.
Bons, P. D., Elburg, M. A., and Gomez-Rivas, E.: A review of the formation of tectonic veins and their microstructures, J. Struct. Geol., 43, 33–62, 2012.
Bown, P. R., Jones, T. D., Lees, J. A., Randell, R. D., Mizzi, J. A., Pearson, P. N., Coxall, H. K., Young, J. R., Nicholas, C. J., Karega, A., Singano, J., and Wade, B. S.: A Paleogene calcareous microfossil Konservat-Lagerstatte from the Kilwa Group of coastal Tanzania, Geol. Soc. Am. Bull., 120, 3–12, https://doi.org/10.1130/b26261.1, 2008.
Branson, O., Bonnin, E. A., Perea, D. E., Spero, H. J., Zhu, Z., Winters, M., Hönisch, B., Russell, A. D., Fehrenbacher, J. S., and Gagnon, A. C.: Nanometer-Scale Chemistry of a Calcite Biomineralization Template: Implications for Skeletal Composition and Nucleation, P. Natl. Acad. Sci. USA, 113, 12934–12939, https://doi.org/10.1073/pnas.1522864113, 2016.
Cisneros-Lazaro, D., Adams, A., Guo, J., Bernard, S., Baumgartner, L. P., Daval, D., Baronnet, A., Grauby, O., Vennemann, T., Stolarski, J., Escrig, S., and Meibom, A.: Fast and pervasive diagenetic isotope exchange in foraminifera tests is species-dependent, Nat. Commun., 13, 113, https://doi.org/10.1038/s41467-021-27782-8, 2022.
de Nooijer, L. J., Spero, H. J., Erez, J., Bijma, J., and Reichart, G. J.: Biomineralization in perforate foraminifera, Earth-Sci. Rev., 135, 48–58, https://doi.org/10.1016/j.earscirev.2014.03.013, 2014.
Edgar, K. M., Anagnostou, E., Pearson, P. N., and Foster, G. L.: Assessing the impact of diagenesis on δ11B, δ13C, δ18O, and values in fossil planktic foraminiferal calcite, Geochim. Cosmochim. Ac., 166, 189–209, https://doi.org/10.1016/j.gca.2015.06.018, 2015.
Edgar, K. M., Pälike, H., and Wilson, P. A.: Testing the impact of diagenesis on the δ18O and δ13C of benthic foraminiferal calcite from a sediment burial depth transect in the equatorial Pacific, Paleoceanography, 28, 468-480, https://doi.org/10.1002/palo.20045, 2013.
Eggins, S., Sadekov, A., and Dedeckker, P.: Modulation and daily banding of in tests by symbiont photosynthesis and respiration: a complication for seawater thermometry?, Earth Planet. Sc. Lett., 225, 411–419, https://doi.org/10.1016/j.epsl.2004.06.019, 2004.
Erez, J. and Luz, B.: Experimental paleotemperature equation for planktonic foraminifera, Geochim. Cosmochim. Ac., 47, 1025–1031, https://doi.org/10.1016/0016-7037(83)90232-6, 1983.
Fehrenbacher, J. S., Russell, A. D., Davis, C. V., Gagnon, A. C., Spero, H. J., Cliff, J. B., Zhu, Z., and Martin, P.: Link between light-triggered Mg-banding and chamber formation in the planktic foraminifera Neogloboquadrina dutertrei, Nat. Commun., 8, 15441, https://doi.org/10.1038/ncomms15441, 2017.
Folk, R. L.: The natural history of crystalline calcium carbonate; effect of magnesium content and salinity, J. Sediment. Res., 44, 40–53, https://doi.org/10.1306/74D72973-2B21-11D7-8648000102C1865D, 1974.
Ganssen, G. M., Peeters, F. J. C., Metcalfe, B., Anand, P., Jung, S. J. A., Kroon, D., and Brummer, G.-J. A.: Quantifying sea surface temperature ranges of the Arabian Sea for the past 20 000 years, Clim. Past, 7, 1337–1349, https://doi.org/10.5194/cp-7-1337-2011, 2011.
Hemleben, C., Spindler, M., and Anderson, O. R.: Modern Planktonic Foraminifera, Springer New York, NY, 363 pp., https://doi.org/10.1007/978-1-4612-3544-6, 1989.
Hines, B. R., Hollis, C. J., Atkins, C. B., Baker, J. A., Morgans, H. E., and Strong, P. C.: Reduction of oceanic temperature gradients in the early Eocene Southwest Pacific Ocean, Palaeogeogr. Palaeocl., 475, 41–54, 2017.
John, E. H.: Supplementary files for John et al. (2023), Zenodo [data set], https://doi.org/10.5281/zenodo.8228690, 2023.
John, E. H., Staudigel, P. T., Buse, B., Lear, C. H., Pearson, P. N., and Slater, S. M.: Revealing their true stripes: banding in the Paleogene planktonic foraminifera genus Morozovella and implications for paleothermometry, Paleoceanogr. Paleocl., 38, e2023PA004652, https://doi.org/10.1029/2023PA004652, 2023.
Johnstone, H. J. H., Yu, J., Elderfield, H., and Schulz, M.: Improving temperature estimates derived from of planktonic foraminifera using X-ray computed tomography–based dissolution index, XDX, Paleoceanography, 26, PA1215, https://doi.org/10.1029/2009pa001902, 2011.
Jonkers, L., Buse, B., Brummer, G.-J. A., and Hall, I. R.: Chamber formation leads to banding in the planktonic foraminifer Neogloboquadrina pachyderma, Earth Planet. Sc. Lett., 451, 177–184, https://doi.org/10.1016/j.epsl.2016.07.030, 2016.
Kozdon, R., Kelly, D. C., Kita, N. T., Fournelle, J. H., and Valley, J. W.: Planktonic foraminiferal oxygen isotope analysis by ion microprobe technique suggests warm tropical sea surface temperatures during the Early Paleogene, Paleoceanography, 26, PA3206, https://doi.org/10.1029/2010pa002056, 2011.
Kozdon, R., Kelly, D. C., Kitajima, K., Strickland, A., Fournelle, J. H., and Valley, J. W.: In situ δ18O and analyses of diagenetic and planktic foraminiferal calcite preserved in a deep-sea record of the Paleocene-Eocene thermal maximum, Paleoceanography, 28, 517–528, https://doi.org/10.1002/palo.20048, 2013.
Kunioka, D., Shirai, K., Takahata, N., Sano, Y., Toyofuku, T., and Ujiie, Y.: Microdistribution of , , and ratios inPulleniatina obliquiloculatatest by using a NanoSIMS: Implication for the vital effect mechanism, Geochem. Geophy. Geosy., 7, Q12P20, https://doi.org/10.1029/2006gc001280, 2006.
Lamyman, G. S.: Micro and macroevolution of Cenozoic planktonic foraminifera, Ph.D. thesis, University of Leeds, UK, https://etheses.whiterose.ac.uk/33775/ (last access: 17 January 2024), 2023.
Lastam, J., Griesshaber, E., Yin, X., Rupp, U., Sánchez-Almazo, I., Heß, M., Walther, P., Checa, A., and Schmahl, W.: Patterns of crystal organization and calcite twin formation in planktonic, rotaliid, foraminifera shells and spines, J. Struct. Biol., 215, 107898, https://doi.org/10.1016/j.jsb.2022.107898, 2023a.
Lastam, J., Griesshaber, E., Yin, X., Rupp, U., Sánchez-Almazo, I., Heß, M., Walther, P., Checa, A., and Schmahl, W.: The unique fibrilar to platy nano-and microstructure of twinned rotaliid foraminiferal shell calcite, Sci. Rep., 13, 2189, https://doi.org/10.1038/s41598-022-25082-9, 2023b.
Lea, D. W., Pak, D. K., and Spero, H. J.: Climate impact of late Quaternary equatorial Pacific sea surface temperature variations, Science, 289, 1719–1724, 2000.
Leng, M. J.: Isotopes in palaeoenvironmental research, Springer, Springer Dordrecht, 307 pp., https://doi.org/10.1007/1-4020-2504-1, 2006.
Lu, K.: Stabilizing nanostructures in metals using grain and twin boundary architectures, Nat. Rev. Mater., 1, 1–13, 2016.
Moore, T. C., Jr., Rabinowitz, P. D., Boersma, A., Borella, P. E., Chave, A. D., Duée, G., Fütterer, D. K., Jiang, M.-J., Kleinert, K., Lever, A., Manivit, H., O'Connell, S., Richardson, S. H., and Shackleton, N. J.: Site 527, Affiliation (analytic): Univ. R.I., Grad. Sch. Oceanogr., Vol. 74, Washington, U.S. Govt. Printing Office, https://doi.org/10.2973/dsdp.proc.74.104.1984, 1984.
Nicholas, C. J., Pearson, P. N., Bown, P. R., Jones, T. D., Huber, B. T., Karega, A., Lees, J. A., McMillan, I. K., O'Halloran, A., and Singano, J. M.: Stratigraphy and sedimentology of the Upper Cretaceous to Paleogene Kilwa Group, southern coastal Tanzania, J. Afr. Earth Sci., 45, 431–466, 2006.
Nicolas, A. and Poirier, J. P.: Crystalline plasticity and solid state flow in metamorphic rocks, Wiley, London; New York, 444 pp., 1976.
Norris, R. D. and Wilson, P. A.: Low-latitude sea-surface temperatures for the mid-Cretaceous and the evolution of planktic foraminifera, Geology, 26, 823–826, 1998.
Nürnberg, D., Bijma, J., and Hemleben, C.: Assessing the reliability of magnesium in foraminiferal calcite as a proxy for water mass temperatures, Geochim. Cosmochim. Ac., 60, 803–814, 1996.
Pabich, S., Vollmer, C., and Gussone, N.: Investigating crystal orientation patterns of foraminiferal tests by electron backscatter diffraction analysis, Eur. J. Mineral., 32, 613–622, https://doi.org/10.5194/ejm-32-613-2020, 2020.
Pälike, H. and Shipboard Scientific Party: Expedition 320/321 summary, Proceedings of the Integrated Ocean Drilling Program, https://doi.org/10.2204/iodp.proc.320321.107.2010, 2010.
Parker, F. L. and Berger, W. H.: Faunal and solution patterns of planktonic Foraminifera in surface sediments of the South Pacific, Deep-Sea Res. Ocean. Abstr., 18, 73–107, https://doi.org/10.1016/0011-7471(71)90017-9, 1971.
Pearson, P. N.: Oxygen isotopes in foraminifera: Overview and historical review, Paleontol. Soc. Papers, 18, 1–38, 2012.
Pearson, P. N. and Burgess, C. E.: Foraminifer test preservation and diagenesis: comparison of high latitude Eocene sites, Geol. Soc. Lond. Spec. Publ., 303, 59–72, 2008.
Pearson, P. N., Ditchfield, P. W., Singano, J., Harcourt-Brown, K. G., Nicholas, C. J., Olsson, R. K., Shackleton, N. J., and Hall, M. A.: Warm tropical sea surface temperatures in the Late Cretaceous and Eocene epochs, Nature, 413, 481–487, https://doi.org/10.1038/35097000, 2001.
Pearson, P. N., van Dongen, B. E., Nicholas, C. J., Pancost, R. D., Schouten, S., Singano, J. M., and Wade, B. S.: Stable warm tropical climate through the Eocene Epoch, Geology, 35, 211–214, 2007.
Pearson, P. N., John, E., Wade, B. S., D'haenens, S., and Lear, C. H.: Spine-like structures in Paleogene muricate planktonic foraminifera, J. Micropalaeontol., 41, 107–127, https://doi.org/10.5194/jm-41-107-2022, 2022.
Perdikouri, C., Piazolo, S., Kasioptas, A., Schmidt, B. C., and Putnis, A.: Hydrothermal replacement of aragonite by calcite: interplay between replacement, fracturing and growth, Eur. J. Mineral., 25, 123–136, 2013.
Prior, D. J., Trimby, P. W., Weber, U. D., and Dingley, D. J.: Orientation contrast imaging of microstructures in rocks using forescatter detectors in the scanning electron microscope, Mineral. Mag., 60, 859–869, 1996.
Prior, D. J., Boyle, A. P., Brenker, F., Cheadle, M. C., Day, A., Lopez, G., Peruzzi, L., Potts, G., Reddy, S., and Spiess, R.: The application of electron backscatter diffraction and orientation contrast imaging in the SEM to textural problems in rocks, Am. Mineral., 84, 1741–1759, 1999.
Procter, F. A.: Supplementary files for Procter et al. (2024), Zenodo [data set], https://doi.org/10.5281/zenodo.10784879, 2024.
Putnis, A.: Mineral replacement reactions, Rev. Mineral. Geochem., 70, 87–124, 2009.
Regenberg, M., Regenberg, A., Garbe-Schönberg, D., and Lea, D. W.: Global dissolution effects on planktonic foraminiferal ratios controlled by the calcite-saturation state of bottom waters, Paleoceanography, 29, 127–142, https://doi.org/10.1002/2013pa002492, 2014.
Rosenthal, Y. and Lohmann, G. P.: Accurate estimation of sea surface temperatures using dissolution-corrected calibrations for paleothermometry, Paleoceanography, 17, 16-1–16-6, https://doi.org/10.1029/2001PA000749, 2002.
Sadekov, A. Y., Eggins, S. M., and De Deckker, P.: Characterization of distributions in planktonic foraminifera species by electron microprobe mapping, Geochem. Geophy. Geosy., 6, Q12P06, https://doi.org/10.1029/2005gc000973, 2005.
Schiebel, R. and Hemleben, C.: Planktic foraminifers in the modern ocean, Springer Berlin, Heidelberg, https://doi.org/10.1007/978-3-662-50297-6, 2017.
Schiebel, R., Barker, S., Lendt, R., Thomas, H., and Bollmann, J.: Planktic foraminiferal dissolution in the twilight zone, Deep-Sea Res. Pt. II, 54, 676–686, 2007.
Sexton, P. F., Wilson, P. A., and Pearson, P. N.: Microstructural and geochemical perspectives on planktic foraminiferal preservation: “Glassy” versus “Frosty”, Geochem. Geophy. Geosy., 7, https://doi.org/10.1029/2006GC001291, 2006.
Spero, H. J., Eggins, S. M., Russell, A. D., Vetter, L., Kilburn, M. R., and Hönisch, B.: Timing and mechanism for intratest variability in a living planktic foraminifer, Earth Plane. Sc. Lett., 409, 32–42, https://doi.org/10.1016/j.epsl.2014.10.030, 2015.
Spruzeniece, L., Piazolo, S., and Maynard-Casely, H. E.: Deformation-resembling microstructure created by fluid-mediated dissolution–precipitation reactions, Nat. Commun., 8, 14032, https://doi.org/10.1038/ncomms14032, 2017.
Staudigel, P. T., John, E. H., Buse, B., Pearson, P. N., and Lear, C. H.: Apparent preservation of primary foraminiferal ratios and Mg-banding in recrystallized foraminifera, Geology, 50, 760–764, 2022.
Wendler, I.: A critical evaluation of carbon isotope stratigraphy and biostratigraphic implications for Late Cretaceous global correlation, Earth-Sci. Rev., 126, 116–146, 2013.
Westerhold, T., Marwan, N., Drury, A. J., Liebrand, D., Agnini, C., Anagnostou, E., Barnet, J. S., Bohaty, S. M., De Vleeschouwer, D., and Florindo, F.: An astronomically dated record of Earth's climate and its predictability over the last 66 million years, Science, 369, 1383–1387, 2020.
Yin, X., Griesshaber, E., Checa, A., Nindiyasari-Behal, F., Sánchez-Almazo, I., Ziegler, A., and Schmahl, W. W.: Calcite crystal orientation patterns in the bilayers of laminated shells of benthic rotaliid foraminifera, J. Struct. Biol., 213, 107707, https://doi.org/10.1016/j.jsb.2021.107707, 2021.
Zachos, J., Pagani, M., Sloan, L., Thomas, E., and Billups, K.: Trends, rhythms, and aberrations in global climate 65 Ma to present, Science, 292, 686–693, 2001.
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, 2008.
Short summary
This study uses novel techniques to look at the microstructure of planktonic foraminifera (single-celled marine organisms) fossils, to further our understanding of how they form their hard exterior shells and how the microstructure and chemistry of these shells can change as a result of processes that occur after deposition on the seafloor. Understanding these processes is of critical importance for using planktonic foraminifera for robust climate and environmental reconstructions of the past.
This study uses novel techniques to look at the microstructure of planktonic foraminifera...
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