This shows three major stages of the last 1.6 Myr in a carbon perspective. (A) Triple
division based on δ13Cmax events, represented by planktonic δ13C of ODP Site 1143,
southern South China Sea.(B) Triple division into '100-kyr state', 'interim state', and '41-kyr state' based on Subtropical South Atlantic Susceptibility (SUSAS) stack indicative of carbonate preservation. (C) Eccentricity .