Activity

2002

• SECULAR DECREASE IN ATMOSPHERE d15N: ATMOSPHERE ORIGIN AND CRUSTAL CYCLING
  T226 Evolution of the Early Atmosphere, Hydrosphere, and Biosphere II: Constraints from Ore Deposits
  Wednesday, 30 October 2002

  1:30 PM - 5:30 PM
• GEODYNAMIC SETTING OF OROGENIC GOLD DEPOSITS: A SECULAR TRANSITION FROM ARCHEAN PLUME-ARC OROGENS TO PHANEROZOIC CONVERGENT MARGIN OROGENS
  T1 Society of Economic Geologists Special Session: The Global Tectonic Setting of Ore Deposits—Present Understanding and New Advances I
  Saturday, 26 October 2002

  7:55 AM - 12:15 PM