PP31E:
Evolution of the Earth System I


Session ID#: 10855

Session Description:
Earth has evolved as a coupled system, with rich interactions between biology, geology, chemistry and climate. A wide array of geochemical and climatic states have existed through a continuously habitable period of at least 4 billion years. Understanding this evolution is necessarily an interdisciplinary problem. We welcome contributions which chart or explain this evolution, with either observational or theoretical approaches, for any period in Earth history. Topics will include evolution of major geochemical cycles (C, O, N), major climatic events and the co-evolution of life and the environment.
Primary Convener:  Dr. Colin Goldblatt, PhD, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
Conveners:  Benjamin W Johnson, University of Victoria, Earth and Ocean Sciences, Victoria, BC, Canada and Dr. Colin Goldblatt, PhD, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
Chairs:  Benjamin W Johnson, University of Victoria, Earth and Ocean Sciences, Victoria, BC, Canada and Dr. Colin Goldblatt, PhD, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
OSPA Liaison:  Dr. Colin Goldblatt, PhD, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada

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

0325 Evolution of the atmosphere [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0343 Planetary atmospheres [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
1030 Geochemical cycles [GEOCHEMISTRY]

Abstracts Submitted to this Session:

Environmental Consequences of Big Nasty Impacts on the Early Earth (75401)
Kevin J Zahnle, NASA Ames Research Center, Moffett Field, CA, United States
Seafloor Weathering Dependence on Temperature and Dissolved Inorganic Carbon (Invited) (61182)
Dorian S Abbot1, Navah X Farahat2 and David E Archer2, (1)University of Chicago, Department of the Geophysical Sciences, Chicago, IL, United States, (2)University of Chicago, Chicago, IL, United States
New Constraints on Archean–Paleoproterozoic Carbonate Chemistry and pCO2 (70079)
Clara L Blättler, Princeton University, Princeton, United States and John A Higgins, Princeton University, Department of Geosciences, Princeton, United States
The evolution of Phanerozoic seawater – Isotope paleothermometry finds consensus on Early Paleozoic warmth and constant seawater δ18O (82559)
Ethan L Grossman, Texas A&M University, Department of Geology and Geophysics, College Station, United States, Gregory A Henkes, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, Benjamin H Passey, Johns Hopkins University, Baltimore, MD, United States, Brock Shenton, ExxonMobil Houston, Exploration Company, Houston, TX, United States, Thomas E. Yancey, Texas A & M University, Department of Geology and Geophysics, College Station, TX, United States and Alberto Perez-Huerta, The University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States
Modes of Contintental Sediment Storage and the History of Atmospheric Oxygen (66365)
Jon M Husson and Shanan E Peters, University of Wisconsin Madison, Geoscience, Madison, WI, United States
The Geologic Nitrogen Cycle and its Relationship to Oxygenation of the Early Earth (75501)
David C. Catling, University of Washington, Department of Earth and Space Sciences, Seattle, United States
Early Neoproterozoic Global Change Through the Lens of the Tambien Group, Northern Ethiopia (76159)
Nicholas Swanson-Hysell1, Adam C Maloof2, Daniel James Condon3, Yuem Park4, Scott Angus MacLennan5, Blair Schoene2, Marissa M Tremblay6, Mulugeta Alene7, Eliel Anttila4, Bereket Haileab8 and Tadele Tesema7, (1)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (2)Princeton University, Department of Geosciences, Princeton, NJ, United States, (3)NERC Isotope Geosciences Laboratory, Keyworth, NG12, United Kingdom, (4)University of California Berkeley, Berkeley, CA, United States, (5)Princeton University, Princeton, NJ, United States, (6)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (7)Addis Ababa University, Department of Earth Sciences, Addis Ababa, Ethiopia, (8)Carleton College, Department of Geology, Northfield, MN, United States
85 million years of pelagic ecosystem evolution: Pacific Ocean deep-sea ichthyolith records reveal fish community dynamics and a long-term decline in sharks (72400)
Elizabeth C Sibert1, Richard D Norris2, Mx. Jose M Cuevas3 and Lana Graves1, (1)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)University of San Diego, San Diego, CA, United States

See more of: Paleoceanography and Paleoclimatology