Fig. 4: Evolution of Mi2 glaciation event11,40,41,42 in relation to La04 orbital parameters43. | Nature Communications

Fig. 4: Evolution of Mi2 glaciation event11,40,41,42 in relation to La04 orbital parameters43.

From: Re-organization of Pacific overturning circulation across the Miocene Climate Optimum

Fig. 4

a Site U1490 benthic foraminifer δ18O plotted against depth (revised meter composite depth: r-mcd). b Site U1490 benthic foraminifer δ18O plotted against age (Supplementary Data File 1). c Eccentricity (E), obliquity (T) in radians, and precession parameter P from La0443 used as tuning target (ET + 0.2P). Glacial terminations are shaded orange and Mi2 glaciation event11,40,41,42 shaded light blue. Saw-tooth features in δ18O between 16.05 and 15.90 Ma suggest the expansion of the Antarctic ice sheet during the Mi2 glaciation event11,40–42. Dotted lines mark tuning tie points.

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