Articles | Volume 11, issue 23
https://doi.org/10.5194/bg-11-7077-2014
https://doi.org/10.5194/bg-11-7077-2014
Research article
 | 
12 Dec 2014
Research article |  | 12 Dec 2014

I/Ca ratios in benthic foraminifera from the Peruvian oxygen minimum zone: analytical methodology and evaluation as a proxy for redox conditions

N. Glock, V. Liebetrau, and A. Eisenhauer

Related authors

Reviews and syntheses: Review of proxies for low-oxygen paleoceanographic reconstructions
Babette Hoogakker, Catherine Davis, Yi Wang, Stepanie Kusch, Katrina Nilsson-Kerr, Dalton Hardisty, Allison Jacobel, Dharma Reyes Macaya, Nicolaas Glock, Sha Ni, Julio Sepúlveda, Abby Ren, Alexandra Auderset, Anya Hess, Katrina Meissner, Jorge Cardich, Robert Anderson, Christine Barras, Chandranath Basak, Harold Bradbury, Inda Brinkmann, Alexis Castillo, Madelyn Cook, Kassandra Costa, Constance Choquel, Paula Diz, Jonas Donnenfield, Felix Elling, Zeynep Erdem, Helena Filipsson, Sebastian Garrido, Julia Gottschalk, Anjaly Govindankutty Menon, Jeroen Groeneveld, Christian Hallman, Ingrid Hendy, Rick Hennekam, Wanyi Lu, Jean Lynch-Stieglitz, Lelia Matos, Alfredo Martínez-García, Giulia Molina, Práxedes Muñoz, Simone Moretti, Jennifer Morford, Sophie Nuber, Svetlana Radionovskaya, Morgan Raven, Christopher Somes, Anja Studer, Kazuyo Tachikawa, Raúl Tapia, Martin Tetard, Tyler Vollmer, Shuzhuang Wu, Yan Zhang, Xin-Yuan Zheng, and Yuxin Zhou
EGUsphere, https://doi.org/10.5194/egusphere-2023-2981,https://doi.org/10.5194/egusphere-2023-2981, 2024
Short summary
Benthic foraminiferal patchiness – revisited
Joachim Schönfeld, Nicolaas Glock, Irina Polovodova Asteman, Alexandra-Sophie Roy, Marié Warren, Julia Weissenbach, and Julia Wukovits
J. Micropalaeontol., 42, 171–192, https://doi.org/10.5194/jm-42-171-2023,https://doi.org/10.5194/jm-42-171-2023, 2023
Short summary
Benthic foraminifera and gromiids from oxygen-depleted environments – survival strategies, biogeochemistry and trophic interactions
Nicolaas Glock
Biogeosciences, 20, 3423–3447, https://doi.org/10.5194/bg-20-3423-2023,https://doi.org/10.5194/bg-20-3423-2023, 2023
Short summary
Climate-Biogeochemistry Interactions in the Tropical Ocean: Data collection and legacy
Gerd Krahmann, Damian L. Arévalo-Martínez, Andrew W. Dale, Marcus Dengler, Anja Engel, Nicolaas Glock, Patricia Grasse, Johannes Hahn, Helena Hauss, Mark Hopwood, Rainer Kiko, Alexandra Loginova, Carolin R. Löscher, Marie Maßmig, Alexandra-Sophie Roy, Renato Salvatteci, Stefan Sommer, Toste Tanhua, and Hela Mehrtens
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2020-308,https://doi.org/10.5194/essd-2020-308, 2021
Preprint withdrawn
Short summary
Bottom-water deoxygenation at the Peruvian margin during the last deglaciation recorded by benthic foraminifera
Zeynep Erdem, Joachim Schönfeld, Anthony E. Rathburn, Maria-Elena Pérez, Jorge Cardich, and Nicolaas Glock
Biogeosciences, 17, 3165–3182, https://doi.org/10.5194/bg-17-3165-2020,https://doi.org/10.5194/bg-17-3165-2020, 2020
Short summary

Related subject area

Paleobiogeoscience: Proxy use, Development & Validation
Disentangling influences of climate variability and lake-system evolution on climate proxies derived from isoprenoid and branched glycerol dialkyl glycerol tetraethers (GDGTs): the 250 kyr Lake Chala record
Allix J. Baxter, Francien Peterse, Dirk Verschuren, Aihemaiti Maitituerdi, Nicolas Waldmann, and Jaap S. Sinninghe Damsté
Biogeosciences, 21, 2877–2908, https://doi.org/10.5194/bg-21-2877-2024,https://doi.org/10.5194/bg-21-2877-2024, 2024
Short summary
Electron backscatter diffraction analysis unveils foraminiferal calcite microstructure and processes of diagenetic alteration
Frances A. Procter, Sandra Piazolo, Eleanor H. John, Richard Walshaw, Paul N. Pearson, Caroline H. Lear, and Tracy Aze
Biogeosciences, 21, 1213–1233, https://doi.org/10.5194/bg-21-1213-2024,https://doi.org/10.5194/bg-21-1213-2024, 2024
Short summary
Quantifying the δ15N trophic offset in a cold-water scleractinian coral (CWC): implications for the CWC diet and coral δ15N as a marine N cycle proxy
Josie L. Mottram, Anne M. Gothmann, Maria G. Prokopenko, Austin Cordova, Veronica Rollinson, Katie Dobkowski, and Julie Granger
Biogeosciences, 21, 1071–1091, https://doi.org/10.5194/bg-21-1071-2024,https://doi.org/10.5194/bg-21-1071-2024, 2024
Short summary
Stable oxygen isotopes of crocodilian tooth enamel allow tracking Plio-Pleistocene evolution of freshwater environments and climate in the Shungura Formation (Turkana Depression, Ethiopia)
Axelle Gardin, Emmanuelle Pucéat, Géraldine Garcia, Jean-Renaud Boisserie, Adélaïde Euriat, Michael M. Joachimski, Alexis Nutz, Mathieu Schuster, and Olga Otero
Biogeosciences, 21, 437–454, https://doi.org/10.5194/bg-21-437-2024,https://doi.org/10.5194/bg-21-437-2024, 2024
Short summary
Charcoal morphologies and morphometrics of a Eurasian grass-dominated system for robust interpretation of past fuel and fire type
Angelica Feurdean, Richard S. Vachula, Diana Hanganu, Astrid Stobbe, and Maren Gumnior
Biogeosciences, 20, 5069–5085, https://doi.org/10.5194/bg-20-5069-2023,https://doi.org/10.5194/bg-20-5069-2023, 2023
Short summary

Cited articles

Anand, P. and Elderfield, H.: Variability of Mg / Ca and Sr/Ca between and within the planktonic foraminifers Globigerina bulloides and Globorotalia truncatulinoides, Geochem. Geophys. Geosyst., 6, Q11D15, https://doi.org/10.1029/2004GC000811, 2005.
Baturin, G. N.: Some unique sedimentological and geochemical features of deposits in coastal upwelling regions, in: Coastal upwelling – its sediment record, Part B: Sedimentary records of ancient coastal upwelling, edited by: Suess, E. and Thiede, J., Plenum Press, NY, 11–27, 1983.
Bernhard, J. M.: Characteristic assemblages and morphologies of benthic foraminifera from, anoxic, organic-rich deposits: Jurassic through Holocene, J. Foramin. Res., 16, 207–215, 1986.
Bernhard, J. M. and Sen Gupta, B. K.: Foraminifera of oxygen-depleted environments, in: Modern Foraminifera, edited by: Sen Gupta, B. K., Kluwer Academic Press, 201–216, 1999.
Bogus, K. A., Zonnefeld, K. A. F., Fischer, D., Kasten, S., Bohrmann, G., and Versteegh, G. J. M.: The effect of meter-scale lateral oxygen gradients at the sediment-water interface on selected organic matter based alteration, productivity and temperature proxies, Biogeosciences, 9, 1553–1570, https://doi.org/10.5194/bg-9-1553-2012, 2012.
Download
Short summary
Our study explores the correlation of I/Ca ratios in four benthic foraminiferal species (three calcitic, one aragonitic) from the Peruvian OMZ with bottom water oxygenation ([O2]BW), and evaluates foraminiferal I/Ca ratios as a possible redox proxy. All species have a positive trend in the I/Ca ratios as a function of [O2]BW. Only for the aragonitic species Hoeglundina elegans is this trend not significant. The highest significance has been found for Uvigerina striata.
Altmetrics
Final-revised paper
Preprint