Session No. 142 Tuesday, October 29, 2002

8:00 AM-12:00 PM, Colorado Convention Center: A105/107
T87. Drilling into Impact Structures: Petrology, Geochemistry, and Geophysics
Christian Koeberl and Wolf Uwe Reimold, Presiding
 Paper #Start Time
 8:00 AM Introductory Remarks
142-18:15 AM YAXCOPOIL-1 DRILLHOLE IN THE CHICXULUB IMPACT CRATER: SMIT, Jan1, DRESSLER, Burkhard, BUFFLER, Richard, MORAN ZENTENO, Dante, SHARPTON, Virgil L.2, STÖFFLER, Dieter3, URRUTIA, Jaime, and MORGAN, Jo4, (1) Faculty of Earth and Life Sciences, Vrije Universiteit, de Boelelaan 1085, Amsterdam, 1081HV, Netherlands, smit@geo.vu.nl, (2) Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775, (3) Institute of Mineralogy, Museum für Naturkunde, Humboldt University at Berlin, Invalidenstrasse 43, Berlin, 10099, Germany, (4) Earth Science and Engineering, Imperial College, Prince Consort Road, London, SW7 2BP, United Kingdom
142-28:35 AM ON THE FATE OF SULFATES DURING THE CHICXULUB EVENT - MICROSCOPIC EVIDENCE: DEUTSCH, Alex, Institut f. Planetologie, Universität Münster, Wilhelm-Klemm-Str. 10, Muenster, D-48149, Germany, deutsca@uni-muenster.de, LANGENHORST, Falko, Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, D-95440, Germany, Falko.Langenhorst@Uni-Bayreuth.DE, and LOUNEJEVA, Elena, Instituto de Geologia, U.N.A.M, Mexico, D.F, C.P. 04510, Mexico
142-38:50 AM DIAGENETIC EVOLUTION OF THE CENOZOIC FORMATIONS ASSOCIATED WITH THE CHICXULUB IMPACT CRATER, NORTHWESTERN YUCATAN PENINSULA, MEXICO: LEFTICARIU, Mihai, Department of Geology and Environmental Geosciences, Northern Illinois Univ, DeKalb, IL 60115, mleftic@geol.niu.edu, PERRY, Eugene C., Department of Geology and Environmental Geosciences, Northern Illinois Univ, 312 Davis Hall, De Kalb, IL 60115-2854, WARD, William C., 26328 Autumn Glen, Boerne, TX 78006, and LEFTICARIU, Liliana, Department of Geology and Environmental Geosciences, Northern Illinois Univ, DeKalb, IL 60115-2854
142-49:05 AM THE MJØLNIR EVENT - TRACKING A MARINE IMPACT: DYPVIK, Henning, Department of Geology, Univ of Oslo, P.O.Box 1047, Blindern, Oslo N-0316 Norway, henning.dypvik@geologi.uio.no.
142-59:25 AM AN L-CHRONDRITE ORIGIN FOR THE POPIGAI CRATER: TAGLE, Roald, Inst. Mineralogy, Nat History Museum, Berlin, 10099, Germany, roald.tagle@museum.hu-berlin.de and CLAEYS, Philippe, Dept. of Geology, Vrije Universiteit Brussel, Pleinlaan 2, B-1050, Brussels, Belgium
142-69:40 AM DRILLING THE VREDEFORT CENTRAL UPLIFT, SOUTH AFRICA - PETROGRAPHIC, GEOCHEMICAL AND STRUCTURAL RESULTS: GIBSON, Roger L.1, REIMOLD, Wolf U.1, ASHLEY, A. James1, and KOEBERL, Christian2, (1) School of Geosciences, Univ of the Witwatersrand, Private Bag 3, P.O. Wits 2050, Johannesburg, 2050, South Africa, 065wur@cosmos.wits.ac.za, (2) Institute of Geochemistry, Univ of Vienna, Althanstrasse 14, Vienna, A-1090, Austria
142-79:55 AM STRATIGRAPHY DRILLED AT WETUMPKA IMPACT STRUCTURE, ALABAMA: KING, David T. Jr, Dept. Geology, Auburn Univ, Auburn, AL 36849-5305, kingdat@auburn.edu, PETRUNY, Lucille W., Astra-Terra Rsch, Auburn, AL 36831-3323, and NEATHERY, Thornton L., Neathery and Associates, 1212-H Veterans Memorial Parkway, Tuscaloosa, AL 35404
142-810:15 AM THE CORED RECORD OF IMPACT-DERIVED LITHOFACIES IN THE CHESAPEAKE BAY IMPACT CRATER: SERENDIPITY VERSUS STRATEGY: POAG, C. Wylie, US Geol Survey, 384 Woods Hole Rd, Woods Hole, MA 02543-1598, wpoag@usgs.gov.
142-910:30 AM PROPOSED SCIENTIFIC DRILLING AT THE BOSUMTWI IMPACT STRUCTURE, GHANA, WEST AFRICA: KOEBERL, Christian, Institute of Geochemistry, Univ of Vienna, Althanstrasse 14, Vienna, A-1090, Austria, christian.koeberl@univie.ac.at, MILKEREIT, Bernd, Department of Physics, Univ of Toronto, Toronto, ON M5S 1A7, Canada, OVERPECK, Jonathan T., ISPE, 715 N Park Ave Fl 2, Tucson, AZ 85719-5037, and SCHOLZ, Christopher A., Syracuse Univ, 204 Heroy Geology Lab, Syracuse, NY 13244-1070
 10:45 AM Discussion

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