Articles | Volume 11, issue 24
https://doi.org/10.5194/bg-11-7207-2014
https://doi.org/10.5194/bg-11-7207-2014
Research article
 | 
17 Dec 2014
Research article |  | 17 Dec 2014

Identifying vital effects in Halimeda algae with Ca isotopes

C. L. Blättler, S. M. Stanley, G. M. Henderson, and H. C. Jenkyns

Related subject area

Biogeochemistry: Biomineralization
Upper-ocean flux of biogenic calcite produced by the Arctic planktonic foraminifera Neogloboquadrina pachyderma
Franziska Tell, Lukas Jonkers, Julie Meilland, and Michal Kucera
Biogeosciences, 19, 4903–4927, https://doi.org/10.5194/bg-19-4903-2022,https://doi.org/10.5194/bg-19-4903-2022, 2022
Short summary
Do bacterial viruses affect framboid-like mineral formation?
Paweł Działak, Marcin D. Syczewski, Kamil Kornaus, Mirosław Słowakiewicz, Łukasz Zych, and Andrzej Borkowski
Biogeosciences, 19, 4533–4550, https://doi.org/10.5194/bg-19-4533-2022,https://doi.org/10.5194/bg-19-4533-2022, 2022
Short summary
Calcification response of reef corals to seasonal upwelling in the northern Arabian Sea (Masirah Island, Oman)
Philipp M. Spreter, Markus Reuter, Regina Mertz-Kraus, Oliver Taylor, and Thomas C. Brachert
Biogeosciences, 19, 3559–3573, https://doi.org/10.5194/bg-19-3559-2022,https://doi.org/10.5194/bg-19-3559-2022, 2022
Short summary
Growth rate rather than temperature affects the B∕Ca ratio in the calcareous red alga Lithothamnion corallioides
Giulia Piazza, Valentina A. Bracchi, Antonio Langone, Agostino N. Meroni, and Daniela Basso
Biogeosciences, 19, 1047–1065, https://doi.org/10.5194/bg-19-1047-2022,https://doi.org/10.5194/bg-19-1047-2022, 2022
Short summary
Heavy metal uptake of nearshore benthic foraminifera during multi-metal culturing experiments
Sarina Schmidt, Ed C. Hathorne, Joachim Schönfeld, and Dieter Garbe-Schönberg
Biogeosciences, 19, 629–664, https://doi.org/10.5194/bg-19-629-2022,https://doi.org/10.5194/bg-19-629-2022, 2022
Short summary

Cited articles

Blättler, C. L., Jenkyns, H. C., Reynard, L. M., and Henderson, G. M.: Significant increases in global weathering during Oceanic Anoxic Events 1a and 2 indicated by calcium isotopes, Earth Planet. Sci. Lett., 309, 77–88, https://doi.org/10.1016/j.epsl.2011.06.029, 2011.
Blättler, C. L., Henderson, G. M., and Jenkyns, H. C.: Explaining the Phanerozoic Ca-isotope history of seawater, Geology, 40, 843–846, https://doi.org/10.1130/G33191.1, 2012.
Böhm, F., Gussone, N., Eisenhauer, A., Dullo, W.-C., Reynaud, S., and Paytan, A.: Calcium isotope fractionation in modern scleractinian corals, Geochim. Cosmochim. Ac., 70, 4452–4462, https://doi.org/10.1016/j.gca.2006.06.1546, 2006.
Borowitzka, M. A. and Larkum, A. W. D.: Calcification in algae: mechanisms and the role of metabolism, Cr. Rev. Plant Sci., 6, 1–45, https://doi.org/10.1080/07352688709382246, 1987.
Bots, P., Benning, L. G., Rickaby, R. E. M., and Shaw, S.: The role of SO4 in the switch from calcite to aragonite seas, Geology, 39, 331–334, 2011.
Download
Short summary
Halimeda algae were used as a test organism to untangle some of the specific factors that influence skeletal composition, in particular Ca-isotope composition. Algae were stimulated to precipitate both calcite and aragonite by growth in artificial Cretaceous seawater. Comparison of the skeletal Ca-isotope ratios with inorganic carbonate forms indicates the effects of mineralogy and Rayleigh distillation of Ca on the geochemistry of their carbonate skeletons.
Altmetrics
Final-revised paper
Preprint