2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 234 Wednesday, 21 October 2009
8:00 AM-12:00 PM, Oregon Convention Center: A106

T94. Impact Cratering from the Microscopic to the Planetary Scale II (GSA Planetary Geology Division; International Continental Scientific Drilling Program [ICDP]; GSA Sedimentary Geology Division; GSA Structural Geology and Tectonics Division; GSA Geophysics Division; Paleontological Society; GSA International Division)

Christian Koeberl and Jared Morrow, Presiding
 Paper #Start Time
 8:00 AM Introductory Remarks
234-18:10 AM EXTRATERRESTRIAL AND TERRESTRIAL SIGNATURES AT THE ONSET OF THE YOUNGER DRYAS: PINTER, Nicholas, Geology Dept, Southern Illinois Univ, 1259 Lincoln Drive, Carbondale, IL 62901-4324, npinter@geo.siu.edu, PODOLL, Andrew, Geology, Southern Illinois University Carbondale, 1259 Lincoln Dr, Carbondale, IL 62901-4324, SCOTT, Andrew C., Department of Earth Sciences, Royal Holloway University of London, Egham, TW20 0EX, United Kingdom, and EBEL, Denton, Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024
234-28:30 AM GEOARCHAEOLOGY OF THE 12.9ka IMPACT HYPOTHESIS: HOLLIDAY, Vance T., Geosciences, University of Arizona, Tucson, AZ 85721, vthollid@email.arizona.edu and MELTZER, David J., Anthropology, Southern Methodist University, Dallas, TX 75275
234-38:45 AM NO EVIDENCE OF EXTRATERRESTRIAL GEOCHEMICAL COMPONENTS AT THE BøLLING-ALLERøD/YOUNGER DRYAS TRANSITION: PAQUAY, Francois1, GODERIS, Steven2, RAVIZZA, Greg1, and CLAEYS, Philippe3, (1) Geology and Geophysics, SOEST, University of Hawaii, 1680 East-West Rd, Honolulu, HI 96816, paquay@hawaii.edu, (2) Department of Geology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel, B-1050, Belgium, (3) Department of Geology, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium
234-49:00 AM NON-REPRODUCIBILITY OF YOUNGER DRYAS EXTRATERRESTRIAL IMPACT RESULTS: SUROVELL, Todd A., Deparment of Anthropology, University of Wyoming, 1000 E. University Avenue, Dept. 3431, Laramie, WY 82071, surovell@uwyo.edu and HOLLIDAY, Vance T., Department of Geosciences, The University of Arizona, Gould-Simpson Bldg, Tucson, AZ 85721
234-59:15 AM FOUR ARGUMENTS WHY THE CHICXULUB IMPACT HAS CAUSED THE CRETACEOUS-PALEOGENE MASS-EXTINCTIONS: SMIT, Jan, Sedimentology, VU University, Falw, de Boelelaan 1085, Amsterdam 1018HV, jan.smit@falw.vu.nl
 9:35 AM Break
234-69:50 AM PROSPECTING FOR EVIDENCE OF IMPACT EVENTS IN THE MARINE SEDIMENT RECORD: HOW AND WHY: RAVIZZA, Greg and PAQUAY, Francois, Geology and Geophysics, SOEST, University of Hawaii, 1680 East-West Rd, Honolulu, HI 96816, ravizza@hawaii.edu
234-710:10 AM THE CHESAPEAKE BAY IMPACT STRUCTURE: MIOCENE EFFECTS OF THE EOCENE IMPACT: EDWARDS, Lucy E.1, POWARS, David S.2, and SELF-TRAIL, Jean M.1, (1) U.S. Geological Survey, MS926A National Center, Reston, VA 20192, leedward@usgs.gov, (2) U.S. Geological Survey, 926A National Center, Reston, VA 20192
234-810:25 AM INSIGHTS INTO IMPACT PROCESSES AND BASEMENT ROCKS OF THE CHESAPEAKE BAY IMPACT STRUCTURE FROM THE ICDP-USGS EYREVILLE CORES: HORTON, J. Wright Jr1, BARTOSOVA, Katerina2, EDWARDS, Lucy E.1, GIBSON, Roger L.3, GOHN, Gregory S.1, KOEBERL, Christian4, POWARS, David S.1, REIMOLD, Wolf Uwe5, and WITTMANN, Axel6, (1) U.S. Geological Survey, 926A National Center, Reston, VA 20192, whorton@usgs.gov, (2) Department of Lithospheric Research, University of Vienna, Althanstrasse 14, Vienna, A-1090, Austria, (3) School of Geosciences, University of the Witwatersrand, Private Bag 3, PO Wits, Johannesburg, 2050, South Africa, (4) Department of Lithospheric Research, University of Vienna, Althanstrasse 14, also of the Natural History Museum, Burgring 7, Vienna, A-1090, Austria, (5) Museum für Naturkunde, Leibniz Institute at Humboldt University Berlin, Invalidenstrasse 43, Berlin, D-10115, Germany, (6) Lunar and Planetary Institute, USRA, 3600 Bay Area Boulevard, Houston, TX 77058
234-910:40 AM SEISMIC AND BOREHOLE EVIDENCE FOR NUMEROUS IMPACT, TECTONIC, AND COMPACTION FAULTS ACROSS THE SOUTHERN HALF OF THE SALISBURY EMBAYMENT, VIRGINIA AND MARYLAND: POWARS, David S.1, HORTON, J. Wright Jr1, EDWARDS, Lucy E.2, and CATCHINGS, Rufus D.3, (1) U.S. Geological Survey, 926A National Center, Reston, VA 20192, dspowars@usgs.gov, (2) U.S. Geological Survey, MS926A National Center, Reston, VA 20192, (3) Earthquake Science Center, U.S. Geological Survey, 345 Middlefield Rd. MS 977, Menlo Park, CA 94025
234-1010:55 AM 40Ar39AR DATING RESULTS FROM THE ICDP-USGS EYREVILLE B CORE: CONSTRAINTS ON THE THERMAL HISTORY OF THE CHESAPEAKE BAY IMPACT STRUCTURE: KUNK, Michael J.1, HORTON, J. Wright Jr1, and MCALEER, Ryan J.2, (1) U.S. Geological Survey, 926A National Center, Reston, VA 20192, mkunk@usgs.gov, (2) Indiana Department of Geological Sciences, 1001 East 10th Street Bloomington, IN 47405, Bloomington, IN 47405
234-1111:10 AM THE CRETACEOUS-PALEOGENE (K-PG) BOUNDARY SECTION AT SHELL CREEK, ALABAMA: ARGUMENTS FOR A PRIMARY IMPACT ORIGIN OF THE CALCITE SPHERULES: DEUTSCH, Alexander, Institut für Planetologie, Universität Münster, Wilhelm-Klemm-Str. 10, Münster, D-48149, Germany, deutsca@uni-muenster.de, LANGENHORST, Falko, Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, D-95440, Germany, and SCHULTE, Peter, Geozentrum Nordbayern, Universität Erlangen, Schlossgarten 5, Erlangen, D-91056, Germany
 11:25 AM Discussion

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