Fig. 4: Modeled and measured Sr partition coefficient between foraminifera calcite and environmental seawater (DSr) as a function of the seawater calcite saturation state (Ωsw).

The data points are measured values36 and the solid lines are model outputs at steady state. Red, blue, yellow and orange color represent C. wuellerstorfi in the Norwegian Sea, the Atlantic Ocean, the Indian Ocean and the Pacific Ocean, respectively. Green color represents C.mundulus in the Atlantic Ocean. Error bars represent ±1σ of replicate analyses.