T82 1500 to 2500 Ma: A Period of Changing Mantle Regimes in Earth History?

Monday, 8 November 2004
8:00 AM - 12:00 PM

Presentations

• 8:00 AM
  GROWTH OF CONTINENTAL CRUST BETWEEN 2.5 AND 1.2 GA AS CONSTRAINED BY ND AND HF ISOTOPES
  Kent C. Condie, New Mexico Institute of Mining and Technology, Socorro, NM
  74027 (Technical Sessions)
• 8:15 AM
  EVOLUTION OF TORQUE IN THE EARTH-MOON SYSTEM AS INDICATED BY INVERTEBRATE GROWTH BANDS
  Douglas H. Oliver, Univ of Texas at Arlington, Arlington, TX and Schailey Ronald, Tarrant County College, Arlington, TX
  79339 (Technical Sessions)
• 8:30 AM
  RECYCLING OF CONTINENTAL CRUST AT MODERN SUBDUCTION ZONES, IMPLICATIONS FOR PRECAMBRIAN CRUSTAL GROWTH, SUPERCONTINENT CONSTRUCTIONS, AND LITTERING THE MANTLE WITH CONTINENTAL DEBRIS
  David William Scholl, Stanford, Stanford, CA and Roland von Hueme, Univ of California Davis, Davis, CA
  78264 (Technical Sessions)
• 8:45 AM
  THE MID-PROTEROZOIC RAPAKIVI GRANITES WITHIN THE CONTEXT OF THE COLUMBIA SUPERCONTINENT
  Jean Louis Vigneresse, CREGU, Vandoeuvre-Nancy, N/A
  77143 (Technical Sessions)
• 9:00 AM
  SUPERCONTINENTS DURING THE PROTEROZOIC - A PALEOMAGNETIC SURVEY
  Lauri J. Pesonen, Univ of Helsinki, Helsinki, N/A and Tiiu Elbra, Univ of Helsinki, Helsinki, N/A
  74080 (Technical Sessions)
• 9:20 AM
  POST-BUSHVELD PALEOPROTEROZOIC INTRAPLATE MAGMATISM IN SOUTHERN AFRICA
  Richard E. Hanson, Texas Christian Univ, Fort Worth, TX and Wulf A. Gose, Univ of Texas, Austin, Austin, TX and James L. Crowley, Massachusetts Institute of Technology, Cambridge, MA and Jahandar Ramezani, Massachusetts Institute of Technology, Cambridge, MA and Samuel A. Bowring, Massachusetts Institute of Technology, Cambridge, MA and James A. Pancake, EG&G Technical Svcs, Inc, Morgantown, WV and Joshua Mukwakwami, Univ of Zimbabwe, Harare, N/A
  75890 (Technical Sessions)
• 9:35 AM
  SURFACE OXIDATION STATES AND THE ARCHEAN/PROTEROZOIC TRANSITION
  Stephen J. Mojzsis, Univ of Colorado, Boulder, CO and Dominic Papineau, Univ of Colorado, Boulder, CO
  77828 (Technical Sessions)
• 9:55 AM
  UPPER MANTLE OXIDATION AS A MECHANISM FOR INITIATING COUPLING BETWEEN BIOSPHERIC OXYGEN AND CARBON RESERVOIRS
  Julie K. Bartley, State Univ of West Georgia, Carrollton, GA and Linda C. Kah, Univ of Tennessee, Knoxville, TN
  75371 (Technical Sessions)
• 10:15 AM
  LINKS BETWEEN THE EVOLUTION OF EARTH AND ITS BIOSPHERE, EVIDENCE FROM WESTERN AUSTRALIA
  John F. Lindsay, Ctr for Advanced Space Studies, Houston, TX and Martin D. Brasier, Oxford Univ, Oxford, N/A and Owen R. Green, Oxford Univ, Oxford, N/A
  76170 (Technical Sessions)
• 10:30 AM
  HOW WELL DO SULFUR ISOTOPES CONSTRAIN OXYGEN ABUNDANCE IN THE ANCIENT ATMOSPHERES?
  Alexander A. Pavlov, Univ of Colorado at Boulder, Boulder, CO and Michael J. Mills, Univ of Colorado at Boulder, Boulder, CO and Owen B. Toon, Univ of Colorado at Boulder, Boulder, CO
  80767 (Technical Sessions)
• 10:45 AM
  STRUCTURAL AND TECTONIC FRAMEWORK OF >4.0 GA DETRITAL ZIRCONS FROM THE JACK HILLS BELT, NARRYER TERRANE, WESTERN AUSTRALIA
  Catherine V. Spaggiari, Curtin Univ of Technology, Perth, N/A and Robert T. Pidgeon, Curtin Univ of Technology, Perth, N/A and Simon A. Wilde, Curtin Univ of Technology, Perth, N/A
  77056 (Technical Sessions)
• 11:00 AM
  LATE PALEOPROTEROZOIC METEORITE IMPACT? INSIGHTS FROM THE CHAIBASA SHALE, EASTERN INDIA
  Rajat Mazumder, Asutosh College, Kolkata, N/A and Dallas H. Abbott, Lamont Doherty Earth Observatory of Columbia Univ, Palisades, NY
  78410 (Technical Sessions)
• 11:15 AM
  CONTINTAL VS OCEANIC ASTEROID IMPACTS
  Paul S. De Carli, SRI Int'l, Menlo Park, CA and Adrian P. Jones, Univ College London, London, N/A and G. David Price, Univ College London, London, N/A
  76973 (Technical Sessions)
• 11:35 AM
  ANTIPODAL HOTSPOTS, LARGE IGNEOUS PROVINCES, AND SEA-LEVEL CHANGES: VESTIGES OF OCEANIC LARGE-BODY IMPACTS?
  Jonathan T. Hagstrum, U.S. Geol Survey, Menlo Park, CA
  78207 (Technical Sessions)