GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 85
Monday, 23 September 2019: 8:00 AM-12:00 PM
Room 224B, North Building (Phoenix Convention Center)

T94. Impact Cratering: A Most Penetrating Geologic Process

GSA Planetary Geology Division; GSA Continental Scientific Drilling Division; GSA Geophysics and Geodynamics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division

 

Jeffrey B. Plescia and Christian Koeberl, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:10 AM
RECENT LUNAR IMPACTS AND EVIDENCE OF REGOLITH GARDENING (Invited Presentation)
SPEYERER, Emerson, POVILAITIS, Reinhold, ROBINSON, Mark S. and WAGNER, Robert V., Arizona State University, School of Earth and Space Exploration, P.O. Box 873603, Tempe, AZ 85287
8:30 AM
SEISMICALLY INDUCED REGOLITH POOLS IN SIMPLE CRATERS ON THE MOON
RUBANENKO, Lior, Earth, Planetary and Space Sciences, UCLA, 595 Charles E Young Dr E, Los Angeles, CA 90095, POWELL, Tyler M., Earth and Space Sciences, UCLA, 595 Charles E. Young Drive East, Los Angeles, CA 90095 and PAIGE, David, Earth, Planetary, and Space Sciences, UCLA, 595 Charles E. Young Drive East, Los Angeles, CA 90095
8:45 AM
OXIDATION STATE OF LUNAR IMPACT MELTS: APPLICATION OF A NEW CR MELT OXYBAROMETER
ROBERTS, Sarah E.1, MCCANTA, Molly C.1, DYAR, M. Darby2 and YTSMA, Cai3, (1)Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave, Knoxville, TN 37996, (2)Dept. of Astronomy, Mount Holyoke College, South Hadley, MA 01075; Planetary Science Institute, 1700 East Fort Lowell, Suite 106, Tucson, AZ 85719-2395, (3)Dept. of Astronomy, Mount Holyoke College, South Hadley, MA 01075
9:00 AM
AN ANALYSIS OF THE EFFECTS OF SAMPLE PROCESSING ON X-RAY POWDER DIFFRACTION PEAKS AND THE IMPLICATIONS FOR STUDIES OF SHOCK METAMORPHOSED CARBONATES
SIMPSON, Emily N., ConocoPhillips School of Geology and Geophysics, University of Oklahoma, Norman, OK 73019 and MILAM, Keith A., Department of Geological Sciences, Ohio University, Athens, OH 45701
9:15 AM
FALLING SKY: THE HADEAN AND ARCHEAN EARTH ASTEROID IMPACT FLUX (Invited Presentation)
MARCHI, Simone, Southwest Research Institute, 1050 Walnut St Ste 300, Boulder, CO 80302-5142
9:35 AM
SPATIAL DISTRIBUTION OF METEORITIC CARRIER PHASES IN PALEOARCHEAN SPHERULE LAYERS FROM SOUTH AFRICA
SCHULZ, Toni1, HELDWEIN, Oliver1 and KOEBERL, Christian2, (1)Department of Lithospheric Research, University of Vienna, Althanstrasse 14, Vienna, 1090, Austria, (2)Department of Lithospheric Research, University of Vienna, Althanstrasse, 14, Vienna, 1090, Austria; Natural History Museum, Burgring 7, Vienna, A-1010, Austria
 
9:50 AM
Break
10:05 AM
MICROCHEMISTRY OF IMPACT MELT GLASSES OF LONAR CRATER, INDIA
SIKDER, Arif M., Center for Environmental Studies (CES), Virginia Commonwealth University (VCU), 1000 West Cary Street, Richmond, VA 23284, TURNER, Joseph B. McGee, Virginia Commonwealth University (VCU), Department of Chemistry, 1001 West Main Street, Richmond, VA 23284, MISRA, Saumitra, Geological Sciences, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Westville (Durban), 4001, South Africa and NEWSOM, Horton, Institute of Meteoritics, University of New Mexico, Albuquerque, NM 87131
10:20 AM
THE DISTRIBUTION OF MICROSCOPIC ASTEROIDAL AND COMETARY DEBRIS IN MELTS FORMED DURING AIRBURSTS AND SOFT SEDIMENT IMPACTS
HARRIS, R. Scott, Department of Space Sciences, Fernbank Science Center, 156 Heaton Park Drive, Atlanta, GA 30307, SCHULTZ, Peter H., Department of Earth, Environmental, and Planetary Science, Brown University, P.O. Box 1846, Providence, RI 02912 and MURRAY, Sean T., Meteorite Association of Georgia, Marietta, GA 30062
10:35 AM
A COMMON ROCK-FORMING MINERAL UNDER SHOCK: A STUDY OF PLAGIOCLASE AMORPHIZATION IN NATURE AND EXPERIMENTS
PITTARELLO, Lidia1, DALY, Luke2, ROSZJAR, Julia3, FRITZ, Jörg4, FERRIÈRE, Ludovic3, LENZ, Christoph5, CHANMUANG N, Chutimun5, LEE, Martin R.2 and KOEBERL, Christian6, (1)Department of Lithospheric Research, University of Vienna, Althanstrasse, 14, A-1090 Vienna, Austria, (2)School of Geographical and Earth Sciences, University of Glasgow, Glasgow, G12 8QQ, United Kingdom, (3)Natural History Museum, Burgring 7, Vienna, A-1010, Austria, (4)Kosmogeologie, Saalbau Weltraum Projekt, Berlin, Germany, (5)Institute of Mineralogy and Crystallography, University of Vienna, Vienna, 1090, Austria, (6)Natural History Museum, Burgring 7, Vienna, A-1010, Austria; Department of Lithospheric Research, University of Vienna, Althanstrasse, 14, Vienna, 1090, Austria
10:50 AM
(U-TH)/HE DATING OF SHOCKED ZIRCONS FROM CHESAPEAKE BAY DISTAL IMPACT EJECTA AT ODP SITE 1073
BIREN, Marc B.1, WARTHO, Jo-Anne2, VAN SOEST, Matthijs C.1, HODGES, Kip1, CATHEY, Henrietta E.3, GLASS, Billy P.4, KOEBERL, Christian5, HORTON Jr., J. Wright6 and HALE, Walter7, (1)Group 18 Laboratories, School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-6004, (2)GEOMAR Helmholtz Centre for Ocean Research, Kiel, 24148, Germany; Group 18 Laboratories, School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-6004, (3)Central Analytical Research Facility, Queensland University of Technology, Brisbane, 4000, Australia; LeRoy Eyring Center for Solid State Science, Arizona State University, Tempe, AZ 84287, (4)Geological Sciences, University of Delaware, 255 Academy St, Newark, DE 19716, (5)Department of Lithospheric Research, University of Vienna, Althanstrasse, 14, Vienna, 1090, Austria; Natural History Museum, Burgring 7, Vienna, A-1010, Austria, (6)U.S. Geological Survey, Florence Bascom Geoscience Center, 926A National Center, Reston, VA 20192, (7)IODP Core Repository, Bremen, D-28359, Germany
11:05 AM
CALIFORNIA’S OPHIOLITE RIMMED GREAT VALLEY: JURASSIC/CRETACEOUS BOUNDARY IMPACT BASIN DEFORMED BY ~145 MA OF E-W SHORTENING AND AT LEAST 30 MA OF NW-SE RIGHT-LATERAL SHEAR?
OLDS, Eric Peter, College of Alameda, 555 Ralph Appezzatto Memorial Parkway, Alameda, CA 94501 and COLEMAN, Robert G., Geological Sciences, Stanford University, Stanford, CA 94305
11:20 AM
CRETACEOUS-PALEOGENE BOUNDARY STRATIGRAPHY OF BELIZE
KING JR., David T., Geosciences, Auburn University, Auburn, AL 36849 and PETRUNY, Lucille W., Dept. Geosciences, Auburn University, Auburn, AL 36849
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