U24A:
FRONTIERS IN GEOSYSTEMS: Deep Earth-Surface Interactions

Note: Abstract submissions to Union sessions are by invitation only.


Session ID#: 7500

Session Description:
Recent years have seen progress in our understanding of the quantitative links between long-term Earth evolution as accommodated in the deep Earth and the evolution of the Earth’s surface systems including the ocean, atmosphere, and biosphere. This special collection consists of cutting-edge, provocative perspectives on a range of issues that have recently been tackled in this field. Those include the interactions between glacial cycles, volcanism, and climate; the link between long-term plate tectonic evolution, mantle structure, and eruption of large igneous provinces; the role of the mantle in controlling the geodynamo; feedbacks between weathering of continental and oceanic crust, tectonics, orogeny and the climate system; long term sea level variations, mantle convection, and climate; the interactions between the interior and the biosphere for the progressive rise of oxygen; and links between mantle convection and mass extinctions.
Primary Convener:  Cin-Ty Lee, Rice University, Houston, TX, United States
Conveners:  Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, United States, Janne Blichert-Toft, Ecole Normale Supérieure de Lyon, CNRS, and Université de Lyon, Lyon, France and Yusuke Yokoyama, The University of Tokyo, Atmosphere and Ocean Research Institute (AORI), Kashiwa, Japan
Chairs:  Cin-Ty Lee, Rice University, Houston, TX, United States and Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, United States
OSPA Liaison:  Cin-Ty Lee, Rice University, Houston, TX, United States
Index Terms:

1030 Geochemical cycles [GEOCHEMISTRY]
4928 Global climate models [PALEOCEANOGRAPHY]
5225 Early environment of Earth [PLANETARY SCIENCES: ASTROBIOLOGY]
8125 Evolution of the Earth [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Alternative Earths: The Diverse Chapters of Sustained Habitability on a Dynamic Early Earth and Their Astrobiological Significance (Invited) (58345)
Timothy W Lyons, University of California, Department of Earth Sciences, Riverside, CA, United States
Mantle Control of the Geodynamo: Consequences of Top-Down Regulation (Invited) (58297)
Peter Olson, Johns Hopkins University, Department of Earth & Planetary Sciences, Baltimore, MD, United States
The role of continental arc magmatism in driving long-term climate change (Invited) (58609)
Ryan McKenzie1, Noah Planavsky2, Donald E Penman2, Brian K Horton3, Shannon E Loomis4, Daniel F Stockli5 and Cin-Ty Lee6, (1)Yale University, Department of Geology and Geophysics, New Haven, CT, United States, (2)Yale University, Department of Earth and Planetary Sciences, New Haven, CT, United States, (3)University of Texas at Austin, Department of Geological Sciences and Institute for Geophysics, Austin, TX, United States, (4)University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, (5)University of Texas at Austin, Jackson School of Geosciences, Austin, United States, (6)Rice University, Houston, TX, United States
Whole Planet Coupling from Climate to Core: Implications for the Evolution of Rocky Planets and their Prospects for Habitability (Invited) (58617)
Bradford J Foley, Pennsylvania State University, Department of Geosciences, University Park, PA, United States and Peter E Driscoll, Carnegie Institution for Science, Terrestrial Magnetism, Washington, DC, United States
Sea Level During Past Warm Periods – Unraveling Interactions Between Climate, Ice, Crust, and Mantle (Invited) (63676)
Maureen E Raymo1, Jerry X Mitrovica2, Alessio Rovere3, Michael O'Leary4, Michael Robert Sandstrom3, Jacqueline Austermann5, Paul J Hearty6, Rob DeConto7 and David Pollard8, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States, (3)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (4)Curtin University, Perth, WA, Australia, (5)Lamont-Doherty Earth Observatory, Palisades, United States, (6)UNC Wilmington, Wilmington, NC, United States, (7)University of Massachusetts Amherst, Department of Geosciences, Amherst, United States, (8)Pennsylvania State University Main Campus, University Park, United States
Changes in Global Silicate Weathering Feedbacks over Phanerozoic Time (Invited) (58641)
A. Joshua West, University of Southern California, Los Angeles, CA, United States
Climatic, tectonic, and biological factors affecting the oxidation state of the atmosphere and oceans: Implications for Phanerozoic O2 evolution (Invited) (58631)
Kazumi Ozaki, AORI, University of Tokyo, Kashiwa, Chiba, Japan and Eiichi Tajika, Univ Tokyo-Frontier Sciences, Chiba, Japan
Earth System Oxygenation: Toward an Integrated Theory of Earth Evolution (Invited) (78035)
Ariel D Anbar, Arizona State University, School of Earth and Space Exploration and School of Molecular Sciences, Tempe, AZ, United States; Arizona State University, Department of Chemistry & Biochemistry, Tempe, AZ, United States and The Dynamics of Earth System Oxygenation Team

See more of: Union