PP21C:
Paleo-CO2 Reconstruction in the Phanerozoic Posters


Submit an Abstract to this Session


Session ID#: 44031

Session Description:
The history of atmospheric CO2 variations in the geological past is important to evaluate the role that greenhouse gases played during past climate changes, which also provides a basis for future climate projections. A wide range of paleo-CO2 proxies from marine and terrestrial sedimentary archives have been developed and applied across various timescales. Sources of uncertainty associated with these proxies may be attributed to: 1) uncertainties in empirical calibration; 2) uncertainties in regression model input variables; 3) uncertainties in measurement; 4) uncertainties in age. The conversion of modern calibration to paleo-application is also complicated by a lack of mechanistic understanding of some of these paleo-CO2 proxies. This session aims to bring together researchers that use paleo-CO2 proxies to understand the CO2-climate relationship, with particular focus on clarifying sources of uncertainty inherent to specific proxies. We encourage contributions focused on the development, validation, or application of CO2 proxies in paleoclimate research.
Primary Convener:  Ying Cui, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
Conveners:  Yige Zhang, Texas A&M University, Department of Oceanography, College Station, United States, Brian Schubert, University of Louisiana at Lafayette, School of Geosciences, Lafayette, United States and William E. Lukens, Baylor University, Department of Geology, Waco, United States
Primary Liaison:  Ying Cui, Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States
Chairs:  Yige Zhang, Yale University, Department of Geology and Geophysics, New Haven, United States and Ying Cui, Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States
OSPA Liaison:  Ying Cui, Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States

Cross-Listed:
  • B - Biogeosciences
  • GC - Global Environmental Change
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
4930 Greenhouse gases [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Bringing the boron proxy pieces together to solve the ocean carbonate system puzzle: Miocene Monterey excursion and PETM case studies (417821)
Tali Lea Babila1, Sindia Sosdian2, Donald E Penman3, Caroline H Lear2, James C Zachos4 and Gavin L Foster5, (1)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, (2)Cardiff University, School of Earth and Ocean Sciences, Cardiff, United Kingdom, (3)Yale University, New Haven, CT, United States, (4)Univ California Santa Cruz, Santa Cruz, United States, (5)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Constraining the Evolution of Neogene Ocean Carbonate Chemistry Using the Boron Isotope pH Proxy (Invited) (354741)
Sindia M Sosdian, Cardiff University, Cardiff, United Kingdom, Rosanna Greenop, University of St Andrews, St Andrews, United Kingdom, Mathis Hain, University of Southampton, Southampton, United Kingdom, Gavin L Foster, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, Paul N Pearson, University College London, School for Earth and Ocean Sciences, London, United Kingdom and Caroline H Lear, Cardiff University, School of Earth and Ocean Sciences, Cardiff, United Kingdom
Deglacial CO2 outgassing in the North Pacific: Entrainment of subtropical gyre water mass versus upwelling in the subpolar gyre (402075)
Sunhwa Bang1, Youngsook Huh1 and Jung Ok Kang2, (1)Seoul National University, Seoul, Korea, Republic of (South), (2)Seoul National University, Seoul, South Korea
Early Miocene CO2 reconstructions based on multiple plant species (435917)
Tammo Reichgelt, Lamont -Doherty Earth Observatory, Palisades, United States, William J D'Andrea, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Ailín del C Valdivia-McCarthy, Columbia University, New York, United States and Bethany Fox, University of Waikato, Hamilton, New Zealand
Estimate of the Earth-system sensitivity across the early Eocene hyperthermals (460526)
Ying Cui, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States and Brian Schubert, University of Louisiana at Lafayette, School of Geosciences, Lafayette, United States
Correcting for the effect of [CO32-] of habitat waters on the δ18O of Neogloboquadrina dutertrei: A reconstruction of deep chlorophyll maximum temperatures in the eastern equatorial Pacific between the Holocene and the Last Glacial Maximum (349737)
Figen Mekik, Grand Valley State University, Allendale, MI, United States
Neogene atmospheric pCO2 reconstructions from haptophyte algae: methods, calibration, and application (426702)
Samuel R Phelps1, Pratigya J Polissar2, Peter B deMenocal2,3, Heather M Stoll4, Heather L Ford5, Clara T Bolton6, Emmeline Gray7 and Luc Beaufort6, (1)Columbia University of New York, Dept. of Earth and Environmental Science, Palisades, NY, United States, (2)Lamont-Doherty Earth Observatory, Palisades, United States, (3)Columbia University, New York, NY, United States, (4)ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, (5)University of Cambridge, Earth Sciences, Cambridge, United Kingdom, (6)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-En-Provence, France, (7)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence, France
Reconstructing surface water carbonate ion concentration changes in the Eastern Equatorial Pacific using B/Ca ratios in Globigerina bulloides over the past 25 kyr (363558)
Lenzie Ward1, Matthew W Schmidt1, Jennifer E Hertzberg2 and Franco Marcantonio3, (1)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (2)International Ocean Discovery Program, Gulf Core Repository, College Station, TX, United States, (3)Texas A&M University, Geology, College Station, TX, United States
The effect of CO2 concentration on carbon isotope discrimination in Ginkgo (465948)
Mason Scher, National Museum of Natural History, Washington, United States, Richard S Barclay, National Museum of Natural History, Paleobiology, Washington, United States and Scott L Wing, Smithsonian Institution National Museum of Natural History, Department of Paleobiology, Washington, United States
The Fossil Atmospheres Project: A novel approach for refining the Ginkgo paleo-pCO2 barometer (466967)
Richard S Barclay1, Laura Soul2, Amy Bolton3, Jonathan P Wilson4, Patrick Megonigal5, Antoine Bercovici1 and Scott L Wing6, (1)National Museum of Natural History, Paleobiology, Washington, United States, (2)Smithsonian NMNH, Education and Outreach, Washington, DC, United States, (3)Smithsonian Institution NMNH, Office of Education and Outreach, Washington, DC, United States, (4)Haverford College, Department of Environmental Studies, Haverford, United States, (5)Smithsonian Environmental Research Center, Edgewater, United States, (6)Smithsonian Institution National Museum of Natural History, Department of Paleobiology, Washington, United States
Towards multi-proxy pCO2 reconstructions of the early Eocene Climatic Optimum from the Rockall Trough, NE Atlantic (433787)
Yvette Eley1, Tom Dunkley Jones2, James A Bendle1, Kirsty M Edgar2, Ulrike Baranowski1, Heiko Moosen3 and Gavin L Foster4, (1)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (2)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom, (3)Max-Planck-Institute for Biogeochemistry, Jena, Germany, (4)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Warming in a warm world: Orbital CO2 forcing variations in the warm Pliocene (464545)
Elwyn de la Vega1, Thomas Ben Chalk1, Gavin L Foster1, Ratna Priya Bysani2 and Paul A Wilson3, (1)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (2)National Oceanography Centre, Southampton, United Kingdom, (3)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom
Constraints on Devonian atmospheric CO2 levels from the carbon isotopic compositions of fossil land plants (353510)
Thomas J Algeo, University of Cincinnati Main Campus, Cincinnati, OH, United States
Testing and applying a leaf gas-exchange model for paleo-CO2 inference: implications for Cenozoic Earth-system sensitivity (Invited) (354828)
Dana L Royer, Wesleyan University, Department of Earth and Environmental Sciences, Middletown, CT, United States

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