PIF2025 - Mediterranean Atlantic Seawater contrasts of pH and other CO2-system parameters over time: a view from paleoreconstructions - (PID2024-161246NB-I00)

The main objective is to gather quantitative information on the evolution of seawater chemistry—particularly pH—and its relationship with variations in atmospheric CO₂, climate, and ocean circulation in the Mediterranean region across different geological timescales. Through the analysis of boron isotopes and trace elements in fossil foraminifera, as well as specific organic biomarkers, the PhD candidate will reconstruct these and other environmental parameters during past abrupt climate events spanning hundreds to thousands of years. The student will also participate in the implementation of benthic foraminifera cultures, aimed at refining boron-isotope calibrations. This project offers the opportunity to be trained in cutting-edge analytical techniques—including MC-ICP-MS and LA-MC-ICP-MS—and to collaborate with research groups in the United Kingdom (University of Southampton), Italy (Sapienza University), and the University of Barcelona. The PhD thesis will be carried out within the Marine Biogeochemistry, Atmosphere and Climate Group at Institut de Ciències del Mar, ICM-CSIC, in Barcelona, under the supervision of Eva Calvo and Carles Pelejero