Figure 3
From: Influence of surface ocean density on planktonic foraminifera calcification
Evidence for a significant correlation between the mass of G. bulloides shells from the Eastern Atlantic and seawater paleodensity within two different size classes. The upper right (in blue) data are based on size-normalized weight values for the 300–355 μm size fraction from core NEAP 8K in the Northeast Atlantic. The lower left data (in red) are values from the 250–315 μm sieve fraction for cores MD02‐2594 and MD96‐2080 in the Southeast Atlantic. Ambient seawater paleodensity values are estimated from Mg/Ca and carbonate δ18O. Core top samples are denoted with bigger, black infilled symbols, while vertical lines represent modern in-situ annual average seawater density. The dashed lines around the regression line indicate the 95% level of confidence.
