TY - JOUR T1 - Marine radiocarbon evidence for the mechanism of deglacial atmospheric CO2 rise JF - Science Y1 - 2007 A1 - Marchitto, T. M. A1 - Lehman, S. J. A1 - Ortiz, J. D. A1 - Fluckiger, J. A1 - van Geen, A. AB - We reconstructed the radiocarbon activity of intermediate waters in the eastern North Pacific over the past 38,000 years. Radiocarbon activity paralleled that of the atmosphere, except during deglaciation, when intermediate-water values fell by more than 300 per mil. Such a large decrease requires a deglacial injection of very old waters from a deep-ocean carbon reservoir that was previously well isolated from the atmosphere. The timing of intermediate-water radiocarbon depletion closely matches that of atmospheric carbon dioxide rise and effectively traces the redistribution of carbon from the deep ocean to the atmosphere during deglaciation. VL - 316 IS - 5830 N1 - Marchitto, Thomas MLehman, Scott JOrtiz, Joseph DFluckiger, Jacquelinevan Geen, AlexanderengResearch Support, U.S. Gov't, Non-P.H.S.2007/05/15 09:00Science. 2007 Jun 8;316(5830):1456-9. Epub 2007 May 10. JO - Marine radiocarbon evidence for the mechanism of deglacial atmospheric CO2 rise ER -