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Proceedings of the Ocean Drilling Program
Sediments from five Leg 167 drill sites and three piston cores were analyzed for C org and CaCO 3 . Oxygen isotope stratigraphy on benthic foraminifers was used to assign age models to these sedimentary records. We find that the northern and central California margin is characterized by k.y.-scale events that can be found in both the CaCO 3 and C org time series. We show that the CaCO 3 events are caused by changes in CaCO 3 production by plankton, not by dissolution. We also show that thesedoi:10.2973/odp.proc.sr.167.214.2000 fatcat:6mgb6mcwfrdn7f4a6umt7vvarq