T204 Chesapeake Bay Impact Structure: Geology, Geophysics, and Geohydrology of America's Largest Crater

Wednesday, 30 October 2002
8:00 AM - 12:00 PM

Presentations

• 8:00 AM
  STRUCTURE AND MORPHOLOGY OF THE CHESAPEAKE BAY SUBMARINE IMPACT CRATER
  C. Wylie Poag, US Geol Survey, Woods Hole, MA
  40799 (Technical Sessions)
• 8:20 AM
  A COMPUTATIONAL MODEL OF THE CHESAPEAKE BAY IMPACT
  David A. Crawford, Sandia National Laboratories, Albuquerque, NM
  41490 (Technical Sessions)
• 8:40 AM
  LITHOSTRATIGRAPHIC FRAMEWORK OF THE CRATER-FILL DEPOSITS: WESTERN ANNULAR TROUGH, CHESAPEAKE BAY IMPACT CRATER
  David S. Powars, U.S. Geol Survey, Reston, VA and Gregory S. Gohn, U.S. Geol Survey, Reston, VA and Lucy E. Edwards, U.S. Geol Survey, Reston, VA and Rufus D. Catchings, US Geol Survey, Menlo Park, CA and T. Scott Bruce, Virginia Dept. of Environmental Quality, Richmond, VA and Gerald H. Johnson, College of William and Mary, Williamsburg, VA and C. Wylie Poag, US Geol Survey, Woods Hole, MA
  44402 (Technical Sessions)
• 9:00 AM
  VARIATION OF IMPACT RESPONSE WITH DEPTH AND LITHOLOGY, OUTER ANNULAR TROUGH OF THE CHESAPEAKE BAY IMPACT STRUCTURE, VIRGINIA COASTAL PLAIN
  Gregory S. Gohn, U.S. Geol Survey, Reston, VA and David S. Powars, U.S. Geol Survey, Reston, VA and James E. Quick, U.S. Geol Survey, Reston, VA and J. Wright Horton, U.S. Geol Survey, Reston, VA and Rufus D. Catchings, U.S. Geol Survey, Menlo Park, CA
  45483 (Technical Sessions)
• 9:20 AM
  PALEONTOLOGY OF CRATER-FILL DEPOSITS, CHESAPEAKE BAY IMPACT STRUCTURE, VIRGINIA
  Lucy E. Edwards, U.S. Geol Survey, Reston, VA and Norman O. Frederiksen, US Geol Survey, Reston, VA and Jean M. Self-Trail, U.S. Geol Survey, Reston, VA and C. Wylie Poag, US Geol Survey, Woods Hole, MA
  45077 (Technical Sessions)
• 9:40 AM
  CHESAPEAKE BAY IMPACT CRATER: PETROGRAPHIC AND GEOCHEMICAL INVESTIGATIONS OF THE IMPACT BRECCIA FILL
  Wolf Uwe Reimold, Univ of the Witwatersrand, Johannesburg, N/A and Christian Koeberl, Univ of Vienna, Vienna, N/A and C. Wylie Poag, US Geol Survey, Woods Hole, MA
  40802 (Technical Sessions)
• 10:00 AM
  PETROGRAPHY, GEOCHRONOLOGY, AND SIGNIFICANCE OF CRYSTALLINE BASEMENT ROCKS AND IMPACT-DERIVED CLASTS IN THE CHESAPEAKE BAY IMPACT STRUCTURE, SOUTHEASTERN VIRGINIA
  J. Wright Horton, U.S. Geol Survey, Reston, VA and Michael J. Kunk, U.S. Geol Survey, Denver, CO and Charles W. Naeser, U.S. Geol Survey, Reston, VA and Nancy D. Naeser, U.S. Geol Survey, Reston, VA and John N. Aleinikoff, U.S. Geol Survey, Denver, CO and Glen A. Izett, Dept. of Geology, College of William and Mary and Emeritus USGS, Williamsburg, VA
  44052 (Technical Sessions)
• 10:20 AM
  DISTAL IMPACT EJECTA FROM THE CHESAPEAKE BAY IMPACT STRUCTURE
  B.P. Glass, Univ. of Delaware, Newark, DE
  37135 (Technical Sessions)
• 10:40 AM
  HYDROCHEMICAL EVIDENCE FOR THE ORIGIN OF ELEVATED GROUND-WATER SALINITY IN THE CHESAPEAKE BAY IMPACT STRUCTURE, SOUTHEASTERN VIRGINIA
  E. Randolph McFarland, U.S. Geol Survey, Richmond, VA
  37960 (Technical Sessions)
• 11:00 AM
  POSSIBLE HYDROTHERMAL ACTIVITY FOLLOWING THE CHESAPEAKE BAY BOLIDE IMPACT
  Ward E. Sanford, U. S. Geol Survey, Reston, VA
  44186 (Technical Sessions)
• 11:15 AM
  SPATIAL AND TEMPORAL RELATIONSHIPS BETWEEN DIKES, THERMAL SPRINGS, AND DRAINAGE DIVIDES IN THE APPALACHIAN VALLEY & RIDGE AND THE CHESAPEAKE BAY IMPACT STRUCTURE
  Richard J. Diecchio, George Mason University, Fairfax, VA
  39613 (Technical Sessions)
• 11:30 AM
  BIOSPHERIC CONSEQUENCES OF THE CHESAPEAKE BAY BOLIDE IMPACT
  C. Wylie Poag, US Geol Survey, Woods Hole, MA
  40809 (Technical Sessions)