Fig. 3: A global compilation of silicon isotope data demonstrating the reorganisation of the DSi distribution across the last deglaciation. | Nature Communications

Fig. 3: A global compilation of silicon isotope data demonstrating the reorganisation of the DSi distribution across the last deglaciation.

From: The nature of deep overturning and reconfigurations of the silicon cycle across the last deglaciation

Fig. 3

a Diatom silicon isotope (δ30Sidiat) records from the Antarctic Zone (red), Polar Front Zone (purple) and Subantarctic Zone (blue). MD88-76933. E11-2 & ODP109435. TAN0803-12795. PS1778-5 & PS1768-844. TN057-13-PC434. b Diatom (δ30Sidiat) and radiolarian (δ30Sirad) silicon isotope records from PS1768-8 and PS1778-5 in the Atlantic sector44 reconstructing changes in the vertical DSi gradient in the upper Southern Ocean. c A sponge silicon isotope record (δ30Sisponge) from 1048 m in the South Atlantic45 recording changes in DSi content within intermediate waters. d δ30Sisponge record from MD84-551 accompanied by records from the south Atlantic and south Pacific47. Vertical error bars display ±1SE. Horizontal error bars, where present, represent the age range of the samples used to produce the given data point. Together these δ30Sisponge records demonstrate the deglacial changes in deep ocean DSi gradients. e Four benthic foraminiferal (Cibicidoides wuellerstorfi) δ13C records from the southwest Pacific18 highlighting the timing of ventilation changes in the Pacific across the last deglaciation. Solid and open symbols represent samples from jumbo piston and trigger cores, respectively. A map depicting the locations of all cores used in this figure can be found in Supplementary Fig. S1.

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