Figure 24. CaCO3 profiles for the late Pleistocene and Holocene from Site 893 (Gardner and Dartnell, 1995; age model from Kennett, 1995), Site 1017 (Ostertag-Henning and Stax, Chap. 26, this volume; age model from Kennett et al., Chap. 21, this volume), and Site 1019 (Lyle et al., Chap. 11, this volume; age model from Mix et al., 1999) all in calendar years ka. The Younger Dryas Interval is a low carbonate interval all along the California margin, whereas there is a carbonate burial spike at 10-11 ka.