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Activity

2011

• EVIDENCE FOR THE FULLY-OXYGENATED OCEANS AND ATMOSPHERE DURING THE ARCHEAN EON
  228 Earth’s Early Atmosphere and Surface Environment
  Wednesday, 12 October 2011

  8:00 AM - 12:00 PM

  Room 101A-C
• DID METHANE FROM MARINE METHANE HYDRATE DECREASE THE ATMOSPHERIC pO2 LEVEL TO CAUSE THE P-T EXTINCTION?
  T153 Permian-Triassic Changes and Extinction Event: New Insights from Sedimentary, Geochemical, and Paleobiological Records and Modeling Approaches I
  Tuesday, 11 October 2011

  8:00 AM - 12:00 PM

  Room 200FG

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2006

• MIF-S RECORD IN SEDIMENTARY ROCKS: AN INDICATOR OF ATMOSPHERIC OR BIOLOGICAL EVOLUTION?
  158 Links Between Geological Processes, Microbial Activities, and Evolution of Life
  Tuesday, 24 October 2006

  1:30 PM - 5:30 PM
• EXPERIMENTAL EVIDENCE OF NON-REDOX TRANSFORMATION BETWEEN MAGNETITE AND HEMATITE UNDER H2-RICH HYDROTHERMAL CONDITIONS
  T95 Experimental Investigations into Hydrothermal Systems: Implications for Mass Transfer in the Earth’s Crust
  Monday, 23 October 2006

  1:30 PM - 5:30 PM
• HEMATITE FORMATION BY OXYGENATED GROUNDWATER AT 2.76 GA AND BY OXYGENATED SEAWATER AT 3.46 GA
  T46 Changes in Ocean and Atmospheric Redox State and the Evolution of Life II
  Sunday, 22 October 2006

  1:30 PM - 5:30 PM

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2005

• THE AECHEAN SULFUR CYCLE
  T147 The Changing Planet I: A Special Tribute Session Celebrating the Contributions of Fred T. Mackenzie
  Tuesday, 18 October 2005

  8:00 AM - 12:00 PM
• CHEMICAL EVOLUTION OF THE ATMOSPHERE AND OCEANS: CONSTRAINTS FROM BANDED IRON-FORMATIONS
  T103 The Evolving Earth: Implications for Ore Deposit Formation, Evolution, and Benefaction
  Monday, 17 October 2005

  1:30 PM - 5:30 PM
• GEOLOGIC EVIDENCE FOR THE EARLY DEVELOPMENTS OF AN OXYGENATED ATMOSPHERE, SULFATE-RICH OCEANS, AND DIVERSE MARINE- AND TERRESTRIAL BIOSPHERES
  11 Oxygen and Evolution on Early Earth I
  Tuesday, 9 August 2005

  9:00 AM - 12:00 PM
• BIOGENIC ORIGIN FOR ORGANIC MATTER IN CHERT/JASPER AND SHALES OF THE 3.46 GA TOWERS FORMATION, PILBARA, WESTERN AUSTRALIA
  4 The Search for Archean Life on Earth and Beyond
  Monday, 8 August 2005

  9:00 AM - 12:00 PM

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Date Unknown

• Discovery of the Oldest (~3.4 Ga) Lateritic Paleosols in the Pilbara Craton, Western Australia
  145 Precambrian Geology (Posters)