---

Activity

2007

• DELAYED BIOTIC RECOVERY FROM THE PERMIAN-TRIASSIC EXTINCTION MAY HAVE BEEN INFLUENCED BY A REDOX-DRIVEN REORGANIZATION OF THE MARINE CARBONATE SYSTEM
  154 Sediments, Carbonates
  Tuesday, 30 October 2007

  1:30 PM - 5:30 PM

---

2006

• ISOTOPIC CONSTRAINTS ON THE LATE ARCHEAN CARBON CYCLE FROM THE WESTERN MARGIN OF THE KAAPVAAL CRATON, SOUTH AFRICA
  T20 Changes in Ocean and Atmospheric Redox State and the Evolution of Life I
  Sunday, 22 October 2006

  8:00 AM - 12:00 PM
• REDOX TRACE ELEMENT AND ORGANIC CARBON GEOCHEMISTRY OF THE NEOARCHEAN CAMPBELLRAND CARBONATE PLATFORM (TRANSVAAL SUPERGROUP, SOUTH AFRICA)
  T20 Changes in Ocean and Atmospheric Redox State and the Evolution of Life I
  Sunday, 22 October 2006

  8:00 AM - 12:00 PM

---

2005

• AN IRON SHUTTLE FOR DEEP-WATER SILICA IN LATE ARCHEAN IRON FORMATION
  T76 Weathering, Sedimentation, and Diagenesis in Major Element Cycles I: In Memory of Raymond Siever
  Monday, 17 October 2005

  8:00 AM - 12:00 PM

---

2004

• ANAEROBIC BIOSYNTHESIS OF HOPANOIDS BY A MICROBE PREVALENT IN ANOXIC ENVIRONMENTS
  28 Geomicrobiology: Microbe-Mineral Interactions, Life in Extreme Environments, and Early Microbial Life on Earth
  Sunday, 7 November 2004

  1:30 PM - 5:30 PM