The Heartbeat of the Oligocene Climate System
Scripps Institution of Oceanography · University of Alberta · +3 more institutions
Abstract
A 13-million-year continuous record of Oligocene climate from the equatorial Pacific reveals a pronounced “heartbeat” in the global carbon cycle and periodicity of glaciations. This heartbeat consists of 405,000-, 127,000-, and 96,000-year eccentricity cycles and 1.2-million-year obliquity cycles in periodically recurring glacial and carbon cycle events. That climate system response to intricate orbital variations suggests a fundamental interaction of the carbon cycle, solar forcing, and glacial events. Box modeling shows that the interaction of the carbon cycle and solar forcing modulates deep ocean acidity as well as the production and burial of global biomass. The pronounced 405,000-year eccentricity cycle…
Citation impact
- FWCI
- 16.04
- Percentile
- 100%
- References
- 31
Authors
9- HPHeiko PälikeCorresponding
Scripps Institution of Oceanography, University of Alberta, National Oceanography Centre, University of Cambridge, Cardiff University
- RDRichard D. Norris
Scripps Institution of Oceanography, University of Alberta, National Oceanography Centre, University of Cambridge, Cardiff University
- JOJens O. Herrle
Scripps Institution of Oceanography, University of Alberta, National Oceanography Centre, University of Cambridge, Cardiff University
- PAPaul A. Wilson
Scripps Institution of Oceanography, University of Alberta, National Oceanography Centre, University of Cambridge, Cardiff University
- HKHelen K. Coxall
Scripps Institution of Oceanography, University of Alberta, National Oceanography Centre, University of Cambridge, Cardiff University
Topics & keywords
- Carbon cycle
- Glacial period
- Orbital forcing
- Forcing (mathematics)
- Carbon fibers
- Climatology
- Environmental science
- Eccentricity (behavior)
- Life below water