Articles | Volume 19, issue 24
https://doi.org/10.5194/bg-19-5633-2022
https://doi.org/10.5194/bg-19-5633-2022
Technical note
 | 
14 Dec 2022
Technical note |  | 14 Dec 2022

Technical note: No impact of alkenone extraction on foraminiferal stable isotope, trace element and boron isotope geochemistry

Jessica G. M. Crumpton-Banks, Thomas Tanner, Ivan Hernández Almeida, James W. B. Rae, and Heather Stoll

Related authors

A simplified approach for measuring Rubisco carbon isotope fractionation and the first determination in marine haptophyte Gephyrocapsa oceanica
Reto Simon Wijker, Pere Aguiló-Nicolau, Madalina Jaggi, Jeroni Galmés, and Heather Marie Stoll
EGUsphere, https://doi.org/10.5194/egusphere-2025-5010,https://doi.org/10.5194/egusphere-2025-5010, 2025
This preprint is open for discussion and under review for Biogeosciences (BG).
Short summary
Perspective on ice age terminations from absolute chronologies provided by global speleothem records
Nikita Kaushal, Carlos Pérez-Mejías, and Heather M. Stoll
Clim. Past, 21, 1633–1660, https://doi.org/10.5194/cp-21-1633-2025,https://doi.org/10.5194/cp-21-1633-2025, 2025
Short summary
Holocene sea ice and paleoenvironment conditions in the Beaufort Sea (Canadian Arctic) reconstructed with lipid biomarkers
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
Interplay of North Atlantic Freshening and Deep Convection During the Last Deglaciation Constrained by Iberian Speleothems
Laura Endres, Carlos Pérez-Mejías, Ruza Ivanovic, Lauren Gregoire, Anna L. C. Hughes, Hai Cheng, and Heather Stoll
EGUsphere, https://doi.org/10.5194/egusphere-2025-3911,https://doi.org/10.5194/egusphere-2025-3911, 2025
This preprint is open for discussion and under review for Climate of the Past (CP).
Short summary
Divergent estimates of Miocene to Pleistocene upper ocean temperatures in the South Atlantic Ocean from alkenone and coccolith clumped isotope proxies
Heather Stoll, Clara Bolton, Madalina Jaggi, Alfredo Martinez-Garcia, and Stefano Bernasconi
EGUsphere, https://doi.org/10.5194/egusphere-2025-2449,https://doi.org/10.5194/egusphere-2025-2449, 2025
Short summary

Cited articles

Anand, P., Elderfield, H., and Conte, M. H.: Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series, Paleoceanography, 18, 1–15, https://doi.org/10.1029/2002pa000846, 2003. 
Auderset, A., Schmitt, M., and Martínez-García, A.: Simultaneous extraction and chromatographic separation of n-alkanes and alkenones from glycerol dialkyl glycerol tetraethers via selective Accelerated Solvent Extraction, Organic Geochemistry, 143, 103979, https://doi.org/10.1016/j.orggeochem.2020.103979, 2020. 
Badger, M. P. S., Chalk, T. B., Foster, G. L., Bown, P. R., Gibbs, S. J., Sexton, P. F., Schmidt, D. N., Pälike, H., Mackensen, A., and Pancost, R. D.: Insensitivity of alkenone carbon isotopes to atmospheric CO2 at low to moderate CO2 levels, Clim. Past, 15, 539–554, https://doi.org/10.5194/cp-15-539-2019, 2019. 
Barker, S., Greaves, M., and Elderfield, H.: A study of cleaning procedures used for foraminiferal Mg/Ca paleothermometry, Geochem. Geophy. Geosy., 4, 1–20, https://doi.org/10.1029/2003GC000559, 2003. 
Boyle, E. A.: Cadmium, zinc, copper, and barium in foraminifera tests, Earth Planet. Sc. Lett., 53, 11–35, https://doi.org/10.1016/0012-821X(81)90022-4, 1981. 
Download
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.
Share
Altmetrics
Final-revised paper
Preprint