2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 207
Tuesday, 20 October 2009: 1:30 PM-5:30 PM
A106 (Oregon Convention Center)

T94. Impact Cratering from the Microscopic to the Planetary Scale I

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, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1
1:40 PM
PETROGRAPHY AND CHEMISTRY OF PSEUDO-TACHYLITIC BRECCIAS FROM LARGE IMPACT STRUCTURES
REIMOLD, Wolf Uwe1, MOHR-WESTHEIDE, Tanja1, CRASSELT, Claudia2, LANA, Cristiano3 and KOEBERL, Christian4, (1)Mineralogie, Museum für Naturkunde - Leibniz-Institute at Humboldt University Berlin, Invalidenstrasse 43, Berlin, 10115, Germany, (2)Mineralogie, Museum für naturkunde - Leibniz-Institute at Humboldt University Berlin, Invalidenstrasse 43, Berlin, 10115, Germany, (3)Department of Geology, Stellenbosch Universiteit, Private Bag X1, Matieland, 7602, South Africa, (4)Department of Lithospheric Research, University of Vienna, Althanstrasse 14, also of the Natural History Museum, Burgring 7, Vienna, A-1090, Austria, uwe.reimold@mfn-berlin.de, uwe.reimold@mfn-berlin.de
2
2:00 PM
SEISMIC DEFORMATION OF PALEOPROTEROZOIC AND ARCHEAN ROCKS IN NORTHERN MICHIGAN CAUSED BY THE 1850 MA SUDBURY IMPACT
CANNON, William F., US Geological Survey, 12201 Sunrise Valley Dr, MS 954, Reston, VA 20192-0001, SCHULZ, Klaus J., U.S. Geological Survey, 954 National Center, Reston, VA 20192 and BJORNERUD, Marcia G., Deptartment of Geology, Lawrence University, 711 E. Boldt Way, Appleton, WI 54911, wcannon@usgs.gov, wcannon@usgs.gov
3
2:15 PM
MONTEVILLE SPHERULE LAYER (NEOARCHEAN, TRANSVAAL SUPERGROUP, SOUTH AFRICA) LOOKS FAMILIAR IN THREE NEW CORES THAT TRIPLE ITS AREAL EXTENT
SIMONSON, Bruce M.1, BEUKES, Nicolas J.2 and BILLER, Sandra1, (1)Geology, Oberlin College, 52 W. Lorain St, Oberlin, OH 44074, (2)Geology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa, bruce.simonson@oberlin.edu, bruce.simonson@oberlin.edu
4
2:30 PM
DISCOVERY OF A NEW SPHERULE LAYER IN THE HAMERSLEY BASIN (WESTERN AUSTRALIA) REPRESENTING A FOURTH ASTEROID IMPACT NEAR THE ARCHEAN/PROTEROZOIC BOUNDARY
HASSLER, Scott W., John F. Kennedy University/Oberlin College, 100 Ellinwood Dr, Pleasant Hill, CA 94523, SIMONSON, Bruce M., Geology, Oberlin College, Oberlin, OH 44074 and SUMNER, Dawn Y., Geology Department, University of California-Davis, One Shields Ave, Davis, CA 95616, shassler@gmail.com, shassler@gmail.com
5
2:45 PM
DIAGENESIS OF THE 3.24 GA SPHERULES IN THE BARBERTON GREENSTONE BELT, SOUTH AFRICA
DAVATZES, Alexandra K., Earth and Environmental Science, Temple University, Philadelphia, PA 19122, LOWE, Donald R., Geological & Environmental Sciences, Stanford University, Braun Hall, Bldg. 320, Stanford, CA 94306 and BYERLY, Gary R., Dept. of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803, alix@temple.edu, alix@temple.edu
6
3:00 PM
GROWTH OF PELLETS AND ACCRETIONARY LAPILLI DURING THE EMPLACEMENT OF VOLCANIC AND METEORITE IMPACT EJECTA BLANKETS BY CATASTROPHIC DENSITY CURRENTS
BROWN III, Richard J., Earth and Environmental Science, Open University, MIlton Keynes, MK76AA, United Kingdom and BRANNEY III, Michael J., Geology Department, University of Leicester, Leicester, LE17RJ, r.j.brown@open.ac.uk, r.j.brown@open.ac.uk
 
3:15 PM
Break
7
3:30 PM
EVOLUTION OF THE ALAMO IMPACT EVENT: FROM FIVE SECONDS TO FIVE MINUTES
WARME, John E., Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, MORROW, Jared, Department of Geological Sciences, San Diego State University, 5500 Campanile Drive, 237 GMCS, San Diego, CA 92182-1020 and PINTO, Jesus A., INTEVEP-PDVSA, Building South 1, Floor 2, Office 202, Los Teques, 1201, Venezuela, jwarme@mines.edu, jwarme@mines.edu
8
3:45 PM
CALIFORNIA OR BUST: RECOGNITION AND SIGNIFICANCE OF LATE DEVONIAN ALAMO IMPACT DEPOSIT NEAR DEATH VALLEY
MORROW, Jared, Department of Geological Sciences, San Diego State University, 5500 Campanile Drive, 237 GMCS, San Diego, CA 92182-1020 and SANDBERG, Charles A., U.S. Geol. Survey, Box 25046, MS 939, Federal Center, Denver, CO 80225, jmorrow@geology.sdsu.edu, jmorrow@geology.sdsu.edu
9
4:00 PM
MAPPING THE POST-IMPACT SURFACE OF THE LATE DEVONIAN ALAMO EVENT, NEVADA
TAPANILA, Leif, Department of Geosciences, Idaho State University, 921 S. 8th Ave, Pocatello, ID 83209-8072, THOMASON, Carrie, Geosciences, Idaho State University, 921 S 8th Ave, Stop 8072, Pocatello, ID 83209-8072 and ANDERSON, Julia, Minnesota Geological Survey, 2642 University Ave. W, St. Paul, MN 55114-1057, tapaleif@isu.edu, tapaleif@isu.edu
10
4:15 PM
SHATTER CONES CONFIRM THE VISTA ALEGRE METEORITE IMPACT STRUCTURE IN THE PARANA FLOOD BASALT PROVINCE, SOUTHERN BRAZIL
CROSTA, Alvaro P., Geology and Natural Resources, University of Campinas, Instituto de Geociências, PO Box 6152, Campinas, 13081970, Brazil, KOEBERL, Christian, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, also of the Natural History Museum, Burgring 7, Vienna, A-1090, Austria and JALUFKA, Dona, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, Vienna, A-1090, Austria, alvaro@ige.unicamp.br, alvaro@ige.unicamp.br
11
4:30 PM
THE 2009 ICDP DRILLING PRJECT INTO THE EL'GYGYGTGYN IMPACT CRATER, SIBERIA
KOEBERL, Christian, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, also of the Natural History Museum, Burgring 7, Vienna, A-1090, Austria, BRIGHAM-GRETTE, Julie, Department of Geosciences, Univ of Massachusetts, 611 N. Pleasant St, Morrill Science Center II, Amherst, MA 01003, MELLES, Martin, Geology, University of Cologne, Cologne, 50674, Germany and MINYUK, Pavel, Northeast Interdisciplinary Scientific Research Institute, RAS, Magadan, 00, Russia, christian.koeberl@univie.ac.at, christian.koeberl@univie.ac.at
12
4:45 PM
THE RITLAND IMPACT STRUCTURE OF WESTERN NORWAY
DYPVIK, Henning1, RIIS, Fridtjof2, NILSEN, Odd3 and KRØGLI, Svein Olav3, (1)Department of Geoscience, University of Oslo, Oslo, NO-0316, Norway, (2)The Norwegian Petroleum Directorate, P.O.Box 600, Stavanger, NO-4003, Norway, (3)Department of Geosciences, University of Oslo, P.O.Box 1047, Oslo, NO-0316, Norway, henning.dypvik@geo.uio.no, henning.dypvik@geo.uio.no
13
5:00 PM
IMPACT ORIGIN OF TABUN KHARA OBO CRATER, MONGOLIA, CONFIRMED BY DRILL CORE STUDIES
AMGAA, Tsolmon, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, Vienna, A-1090, Austria and KOEBERL, Christian, Department of Lithospheric Research, University of Vienna, Althanstrasse 14, also of the Natural History Museum, Burgring 7, Vienna, A-1090, Austria, tsolmon@gmx.net, tsolmon@gmx.net
 
5:15 PM
Discussion
See more of: Technical Sessions