Articles | Volume 20, issue 7
Research article
12 Apr 2023
Research article |  | 12 Apr 2023

Multi-proxy assessment of brachiopod shell calcite as a potential archive of seawater temperature and oxygen isotope composition

Thomas Letulle, Danièle Gaspard, Mathieu Daëron, Florent Arnaud-Godet, Arnauld Vinçon-Laugier, Guillaume Suan, and Christophe Lécuyer

Data sets

World Ocean Atlas 2018 Ocean Data View

Model code and software

mdaeron/D47crunch: D47crunch v2.0.1 (v2.0.3) M. Daëron

IsoplotR P. Vermeesch

Short summary
This paper studies the chemistry of modern marine shells called brachiopods. We investigate the relationship of the chemistry of these shells with sea temperatures to test and develop tools for estimating sea temperatures in the distant past. Our results confirm that two of the investigated chemical markers could be useful thermometers despite some second-order variability independent of temperature. The other chemical markers investigated, however, should not be used as a thermometer.
Final-revised paper