T110 Impact Geology II

Monday, 8 November 2004
1:30 PM - 5:30 PM

Presentations

• 1:30 PM
  THE INSCRUTABLE EJECTA FROM OCEANIC IMPACTS
  Dallas H. Abbott, Lamont Doherty Earth Observatory of Columbia Univ, Palisades, NY
  78326 (Technical Sessions)
• 1:35 PM
  EFFECT OF PLANETARY IMPACT ON MICROBIAL LIFE
  Thomas J. Ahrens, California Institute of Technology, Pasadena, CA and Michael J. Willis, California Institute of Technology, Pasadena, CA
  80160 (Technical Sessions)
• 1:50 PM
  EVIDENCE FOR O2-POOR ARCHEAN ATMOSPHERE FROM IMPACT SPINELS IN THE BARBERTON GREENSTONE BELT, SOUTH AFRICA
  Alexandra Krull-Davatzes, Stanford Univ, Stanford, CA and Gary Byerly, Louisiana State Univ, Baton Rouge, LA and Donald Lowe, Stanford Univ, Stanford, CA
  79187 (Technical Sessions)
• 2:20 PM
  SEARCHING FOR IMPACT FRAGMENTS ACROSS THE EIFELIAN-GIVETIAN BOUNDARY
  Philippe Claeys, Vrije Universiteit Brussel, Brussel, N/A
  77323 (Technical Sessions)
• 2:35 PM
  CRATER STRATIGRAPHY AND CARBONATE IMPACT SIGNATURES, LATE DEVONIAN ALAMO EVENT, NEVADA
  Jesús A. Pinto, Colorado School of Mines, Golden, CO and John E. Warme, Colorado School of Mines, Golden, CO
  75766 (Technical Sessions)
• 2:50 PM
  NEW EVIDENCE ON SIZE AND MARINE SITE OF LATE DEVONIAN ALAMO IMPACT, SOUTHERN NEVADA
  Jared R. Morrow, Univ of Northern Colorado, Greeley, CO and Charles A. Sandberg, U.S. Geol Survey, Denver, CO and Anita G. Harris, Deerfield Beach, FL
  73382 (Technical Sessions)
• 3:20 PM
  WHERE DID THE LATE EOCENE IMPACTORS COME FROM ? THE ASTEROID BELT OR THE OORT CLOUD ?
  Roald Tagle, Humboldt-Univ Berlin, Berlin, N/A and Philippe Claeys, Vrije Universiteit Brussel, Brussel, N/A
  78872 (Technical Sessions)
• 3:35 PM
  NEW GEOPHYSICAL AND BOREHOLE DATA INDICATE THAT THE CHESAPEAKE BAY IMPACT CRATER IS A DEEP, COMPLEX MULTI-RING STRUCTURE
  David S. Powars, U.S. Geol Survey, Reston, VA and Herbert A. Pierce, U.S. Geol Survey, Reston, VA and David L. Daniels, U.S. Geol Survey, Reston, VA and Gregory S. Gohn, U.S. Geol Survey, Reston, VA and Rufus D. Catchings, U.S. Geol Survey, Menlo Park, CA and J. Wright Horton, U.S. Geol Survey, Reston, VA and Lucy E. Edwards, U.S. Geol Survey, Reston, VA
  80150 (Technical Sessions)
• 3:50 PM
  IMPACT BRECCIAS OF THE CENTRAL UPLIFT, CHESAPEAKE BAY IMPACT STRUCTURE: INITIAL RESULTS OF A TEST HOLE AT CAPE CHARLES, VIRGINIA
  J. Wright Horton, U.S. Geol Survey, Reston, VA and Gregory S. Gohn, U.S. Geol Survey, Reston, VA and David S. Powars, U.S. Geol Survey, Reston, VA and John C. Jackson, U.S. Geol Survey, Reston, VA and Jean M. Self-Trail, U.S. Geol Survey, Reston, VA and Lucy E. Edwards, U.S. Geol Survey, Reston, VA and Ward E. Sanford, U.S. Geol Survey, Reston, VA
  79540 (Technical Sessions)
• 4:05 PM
  INSIDE THE CRATER, OUTSIDE THE CRATER: COMPARISON OF TWO CORES FROM THE CHESAPEAKE BAY IMPACT STRUCTURE
  Lucy E. Edwards, U.S. Geol Survey, Reston, VA and David S. Powars, U.S. Geol Survey, Reston, VA and Gregory S. Gohn, U.S. Geol Survey, Reston, VA and J. Wright Horton, U.S. Geol Survey, Reston, VA and Ronald J. Litwin, U.S. Geol Survey, Reston, VA and Jean M. Self-Trail, U.S. Geol Survey, Reston, VA
  79601 (Technical Sessions)
• 4:35 PM
  ANATOMY OF A CENTRAL UPLIFT OF A COMPLEX IMPACT CRATER: THE UPHEAVAL DOME STRUCTURE, UTAH
  Thomas Kenkmann, Humboldt-Univ Berlin, Berlin, N/A and Dirk Scherler, Humboldt-Univ Berlin, Berlin, N/A and Andreas Jahn, Humboldt-Univ Berlin, Berlin, N/A and Boris A. Ivanov, Russian Academy of Sci, Moskow, N/A
  77150 (Technical Sessions)
• 4:50 PM
  OBLIQUE IMPACT AT WEAUBLEAU-OSCEOLA STRUCTURE, MISSOURI
  Kevin R. Evans, Southwest Missouri State Univ, Springfield, MO and Charles W. Rovey, Southwest Missouri State Univ, Springfield, MO and George H. Davis, Jefferson City, MO and Erwin J. Mantei, Southwest Missouri State Univ, Springfield, MO and Kevin L. Mickus, Southwest Missouri State Univ, Springfield, MO and James F. Miller, Southwest Missouri State Univ, Springfield, MO and Thomas D. Moeglin, Southwest Missouri State Univ, Springfield, MO and Thomas G. Plymate, Southwest Missouri State Univ, Springfield, MO
  76553 (Technical Sessions)
• 5:05 PM
  THE HORSESHOE-SHAPED RIM OF WETUMPKA MARINE IMPACT CRATER -- FROM OBLIQUE IMPACT OR HETEROGENEITY IN THE RIM?
  David T. King, Auburn Univ, Auburn, AL and Lucille W. Petruny, Astra-Terra Rsch, Auburn, AL and Thornton L. Neathery, Tuscaloosa, AL
  74297 (Technical Sessions)