Carbonate Deposits and Paleoclimatic Implications in the Northeast Pacific Ocean
Journal - Science
A narrow carbonate band consisting predominantly of Globigerina-richsediments is present in the deep-sea deposits of the northeastPacific Ocean extending almost parallel to the coasts of Oregonand Washington. Five radiocarbon dates in the cores from thisarea suggest that the greatest concentration of Globigerina-richsediments occurred 27,000 to 12,000 years ago. This time intervalcorresponds roughly to the Vashon (late Wisconsin) glacial timesin the Puget Lowland. The results suggest higher carbonate sedimentationin the northeast Pacific during glacial stages.