AGE MODEL

A preliminary isotopic age model is presented in Tables T1 and T2. This age model is based on tuning the 41-k.y. (obliquity) component of ¹⁸O (ice minima) to obliquity maxima and the 23-k.y. (precession) component of ¹⁸O (ice minima) to precession minima employing the SPECMAP-defined lag of -69° and -78° for obliquity and precession, respectively (Imbrie et al., 1984), and the Laskar (1993) orbital solution.