1. Open Access Kent State
  2. Marine Radiocarbon Evidence for the Mechanism of Deglacial Atmospheric CO2 Rise
Author(s)
Abstract

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.
Format
Article
Identifier(s)
10.1126/science.1138679
Publication Date
2007-06-01
Publication Title
Science
Volume
316
Issue
5830
First Page
1456
Last Page
1459
Subject
Community
Department of Geology
Permalink https://oaks.kent.edu/geolpubs/43
Marchitto, T., Lehman, S., Ortiz, J., Fluckiger, J., & Geen, A. (2007). Marine Radiocarbon Evidence for the Mechanism of Deglacial Atmospheric CO2 Rise. Science. https://doi.org/10.1126/science.1138679
Marchitto, Thomas, Scott Lehman, Joseph Ortiz, Jacqueline Fluckiger, and Alexander Geen. 2007. “Marine Radiocarbon Evidence for the Mechanism of Deglacial Atmospheric CO2 Rise”. Science. https://doi.org/10.1126/science.1138679.
Marchitto, T., S. Lehman, J. Ortiz, J. Fluckiger, and A. Geen. Marine Radiocarbon Evidence for the Mechanism of Deglacial Atmospheric CO2 Rise. Science, 1 June 2007, doi:10.1126/science.1138679.