For both panels, 400-kyr power is shown in black, 100-kyr power in red and 41-kyr power in blue. (a) Eustatic sea level. (b) Antarctic ice volume. The two vertical dashed lines indicate transitions from 400- to 41-kyr dominant frequencies (~2.9 Myr ago) and from 41- to 100-kyr (~0.9 Myr ago). Power evolution performed with AnalySeries49 using a moving window of 1 Myr with intermediate steps of 10 kyr and a Parzen window with 90% lags.