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2007 GSA Denver Annual Meeting (28–31 October 2007)

Session No. 105
Monday, 29 October 2007: 1:30 PM-5:30 PM

T107. Recognition and Implications of Coseismic Fault-Zone Structures I

GSA Structural Geology and Tectonics Division; GSA Geophysics Division

 

Laurel B. Goodwin and James P. Evans, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1
1:45 PM
CONTRIBUTIONS AND CHALLENGES TO UNDERSTANDING COSEISMIC FAULT-ZONE STRUCTURES
LOGAN, John M., Geological Sciences, University of Oregon, P. O. Box 1776, Bandon, OR 97411, jmllogan@aol.com, jmllogan@aol.com
2
2:05 PM
STRUCTURAL ANALYSIS OF THE EXHUMED SEMP FAULT ZONE, AUSTRIA: TOWARDS AN UNDERSTANDING OF FAULT ZONE ARCHITECTURE THROUGHOUT THE SEISMOGENIC CRUST
FROST, Erik K.1, DOLAN, James F.2, SAMMIS, Charles G.3, HACKER, Brad4, RATSCHBACHER, Lothar5, DECKER, Kurt6 and COLE, Joshua4, (1)Fugro Consultants, 27220 Turnberry Lane #110, Valencia, CA 91355, (2)Dept Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (3)Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (4)Geological Sciences, UC, Santa Barbara, Department of Geological Sciences, UC Santa Barbara—Building 526, Santa Barbara, CA 93106-9630, (5)TU Bergakademie Freiberg, Bernhard-von-Cotta Strasse 2, Freiberg/SA, 09596, Germany, (6)Center for Earth Sciences, University of Vienna, Althanstrasse 14, Vienna, 1090, Austria, e.frost@fugro.com, e.frost@fugro.com
3
2:20 PM
THE STRUCTURE AND KINEMATICS OF AN EXHUMED STRIKE-SLIP FAULT TERMINATION; IMPLICATIONS FOR EARTHQUAKE RUPTURE PROCESSES
KIRKPATRICK, James D.1, SHIPTON, Zoe K.1 and EVANS, James P.2, (1)Department of Geographical and Earth Sciences, University of Glasgow, Gregory Building, Glasgow, G12 8QQ, United Kingdom, (2)Dept of Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505, James.Kirkpatrick@ges.gla.ac.uk, James.Kirkpatrick@ges.gla.ac.uk
4
2:35 PM
STRUCTURAL INDICATORS OF FRACTURE VELOCITY DURING JOINTING, FAULTING AND EARTHQUAKES
RECHES, Ze'ev1, SAGY, Amir2, DOR, Ory3 and HEESAKKERS, Vincent1, (1)School of Geology & Geophysics, University of Oklahoma, 110 E. Boyd St, Norman, OK 73069, (2)Dept. of Earth Sciences, UC Santa Cruz, 1156 High St, Santa Cruz, CA 95064, (3)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, reches@ou.edu, reches@ou.edu
5
2:50 PM
BRANCHING FRACTURES IN HIGH SPEED LAB EXPERIMENTS AND FIELD EXPOSURES: AN INDICATION OF HIGH CO-SEISMIC SLIP RATES?
SHIPTON, Zoe K.1, PERSANO, Cristina1, KIRKPATRICK, James D.1, SHIMAMOTO, Toshihiko2 and HAN, Raehee3, (1)Department of Geographical and Earth Sciences, University of Glasgow, Gregory Building, Glasgow, G12 8QQ, United Kingdom, (2)Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, 739-8526, Japan, (3)Department of Earth and Environmental Sciences, Korea University, Seoul, South Korea, Zoe.Shipton@ges.gla.ac.uk, Zoe.Shipton@ges.gla.ac.uk
6
3:05 PM
THE ROLE OF FAULT FRICTION IN DAMAGE ZONE EVOLUTION
SAVAGE, Heather M., Department of Earth and Planetary Science, UC, Santa Cruz, 1156 High St, Santa Cruz, CA 95064 and COOKE, Michele L., Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003-9297, hsavage@pmc.ucsc.edu, hsavage@pmc.ucsc.edu
 
3:20 PM
Break
7
3:35 PM
DO MICROSTRUCTURES IN NEAR-SURFACE SEDIMENT FROM ACTIVE FAULTS PRESERVE A SIGNATURE OF COSEISMIC SLIP?
CASHMAN, Susan M., Dept. of Geology, Humboldt State Univ, Arcata, CA 95521, CASHMAN, Katharine V., Department of Geological Sciences, Univ of Oregon, 1272 University of Oregon, Eugene, OR 97403-1272 and BALDWIN, John N., William Lettis & Associates, Inc, 1777 Botelho Drive, Suite 262, Walnut Creek, CA 94596, smc1@humboldt.edu, smc1@humboldt.edu
8
3:55 PM
SEISMIC SIGNIFICANCE OF FAULT-ZONE ARCHITECTURE IN GRANULAR POROUS MEDIA
GOODWIN, Laurel B., Department of Geology and Geophysics, University of Wisconsin Madison, 1215 W. Dayton St, Madison, WI 53706, LEWIS, Claudia, EES: Seismic Hazards, Los Alamos National Laboratory, Los Alamos, NM 87545, GARDNER, Jamie N., Gardner Geoscience, 14170 Hwy 4, Jemez Springs, NM 87025 and RILEY, Paul R., ExxonMobil Production Company, 800 Bell St, Houston, TX 77002, laurel@geology.wisc.edu, laurel@geology.wisc.edu
9
4:10 PM
CLAY FABRIC INTENSITY IN NATURAL AND EXPERIMENTAL CLAY-RICH FAULT ROCKS – IMPLICATIONS FOR CONDITIONS AND PROCESSES DURING FAULT SLIP
HAINES, Samuel H., Chevron Energy Technology Corporation, 1500 Louisiana Street, Room 28092, Houston, TX 77019, VAN DER PLUIJM, Ben, Geological Sciences, University of Michigan, Rm 2534, C. C. Little Bldg, Unibversity of Michigan, Ann Arbor, MI 48109, MARONE, Chris, Geosciences, Penn State University, 503 Deike Building, University Park, PA 16802 and SAFFER, Demian, Department of Geosciences and Center for Geomechanics, Geofluids, and Geohazards, The Pennsylvania State University, 534 Deike Bldg, University Park, PA 16802, SHaines@chevron.com, SHaines@chevron.com
10
4:25 PM
GRANULAR DEFORMATION AND SEISMICITY IN LABORATORY PHOTOELASTIC FAULT ZONES
HAYMAN, Nicholas W., Institute for Geophysics, University of Texas, Austin, TX 78758-4445, DANIELS, Karen E., Department of Physics, NC State University, Raleigh, NC 27695 and MALIN, Peter E., School of Geography, Geology and Environmental Sciences, The University of Auckland, Auckland, 1142, New Zealand, hayman@utig.ig.utexas.edu, hayman@utig.ig.utexas.edu
11
4:40 PM
PARTICLE SIZE-DRIVEN SHEAR LOCALIZATION AND CATACLASTIC FOLIATION IN SIMULATED GRANITE GOUGE
HADIZADEH, Jafar1, GOLDSBY, David2 and TULLIS, Terry2, (1)Geography & Geosciences, University of Louisville, Louisville, KY 40292-0001, (2)Geological Sciences, Brown University, Providence, RI 02912, hadizadeh@louisville.edu, hadizadeh@louisville.edu
 
4:55 PM
Discussion
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