The study extends the magnesium-to-calcium temperature calibration for Globigerina bulloides down to 6 °C, enhancing cold-ocean reconstructions.
2
Existing warm-water equations may underestimate temperature sensitivity in Norwegian Sea specimens, affecting cold-ocean reconstructions.
3
The research involved culturing G. bulloides at 6 to 13 °C and varying salinities to test relationships between elemental ratios and temperature.
4
Magnesium-to-calcium ratios exhibited a positive exponential relationship with temperature, while sodium-to-calcium varied inversely.
5
The study emphasizes the importance of understanding both ocean conditions and the biology of organisms for accurate paleoceanographic interpretations.
