GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 147
Monday, 23 October 2017: 1:30 PM-5:30 PM
Tahoma 2 (The Conference Center)

T209. Challenges in Tectonics: Fault Zone Behavior through Time, from Earth’s Surface to the Upper Mantle II

GSA Structural Geology and Tectonics Division; Future of Tectonics Initiative
Randolph T. Williams, Alexis K. Ault and James F. Dolan, Advocates
1:30 PM
ACCOUNTING FOR FAULT GEOMETRY'S IMPACT ON THE SLIP BUDGET
RESOR, Phillip G., Earth and Environmental Sciences, Wesleyan University, 265 Church St, Middletown, CT 06459, COOKE, Michele L., Geosciences, University of Massachusetts Amherst, Amherst, MA 01003-9297, MARSHALL, Scott T., Department of Geology, Appalachian State University, Boone, NC 28608 and MADDEN, Elizabeth H., Department of Earth and Environmental Sciences, Ludwig-Maximilians-University of Munich, Munich, Germany; Geosciences, University of Massachusetts Amherst, Amherst, MA 01003-9297, presor@wesleyan.edu
1:45 PM
ON THE CONSTANCY (OR NOT) OF FAULT SLIP: POTENTIAL CONTROLS, IMPLICATIONS FOR SEISMIC HAZARD AND PLATE BOUNDARY MECHANICS, AND THE NEED FOR SYSTEM-LEVEL ANALYSIS
DOLAN, James F., Dept Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, dolan@usc.edu
2:00 PM
WRIGHTWOOD REVISITED: WHAT WE CAN AND CANNOT SAY ABOUT HOW FAULTS WORK (Invited Presentation)
SCHARER, Katherine M., U.S. Geological Survey, Earthquake Science Center, 525 South Wilson Ave, Pasadena, CA 91106, COWGILL, Eric, Department of Geology, University of California, One Shields Avenue, Davis, CA 95616, GOLD, Ryan D., Geologic Hazards Science Center, U.S. Geological Survey, 1711 Illinois St., Golden, CO 80401 and WELDON II, Ray J., Department of Earth Sciences, University of Oregon, Eugene, OR 97403-1272, kscharer@usgs.gov
2:20 PM
CASCADING, COMPOUND, MULTI-FAULT RUPTURES: A NEW CLASS OF EARTHQUAKE
NISSEN, Edwin, School of Earth and Ocean Sciences, University of Victoria, Bob Wright Centre A405, Victoria, BC V8W 2Y2, Canada, enissen@uvic.ca
2:35 PM
RELATING GEOLOGIC STRUCTURE TO GEODETIC MEASUREMENTS WITHIN THE SANTA CRUZ MOUNTAINS, NORTHERN CALIFORNIA, THROUGH OFF-FAULT PLASTIC FAILURE
BADEN, Curtis William, Department of Geological and Environmental Sciences, Stanford University, 455 Serra Mall, Building 320, Stanford, CA 94305-2115, HILLEY, George E., Department of Geological Sciences, Stanford University, 455 Serra Mall, Building 320, Stanford, CA 94305-2115, SHUSTER, David L., Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720 and HOURIGAN, Jeremy, Earth and Planetary Sciences, University California Santa Cruz, Santa Cruz, CA 94305, cbaden@stanford.edu
2:50 PM
SLIP RATE VARIATION OF THE CENTRAL SIERRA MADRE FAULT, SOUTHERN CALIFORNIA OVER THE PAST 200 KA
BURGETTE, Reed J.1, SCHARER, Katherine M.2, LIFTON, Nathaniel A.3, HANSON, Austin1, MCPHILLIPS, Devin2 and RITTENOUR, Tammy M.4, (1)Department of Geological Sciences, New Mexico State University, PO Box 30001, MSC 3AB, Las Cruces, NM 88003, (2)U.S. Geological Survey, Earthquake Science Center, 525 South Wilson Ave, Pasadena, CA 91106, (3)Depts. of Earth, Atmospheric, and Planetary Sciences, and Physics and Astronomy, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, (4)Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322, burgette@nmsu.edu
 
3:05 PM
Break
3:20 PM
CRUSTAL SHEAR ZONES AND THE VISCOSITY OF THE LOWER CRUST (Invited Presentation)
HIRTH, Greg1, BEHN, Mark2 and SHINEVAR, William2, (1)Department of Earth, Environmental and Planetary Sciences, Brown University, Box 1846, 324 Brook St, Providence, RI 02912, (2)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Mail Stop 22, Woods Hole, MA 02543, greg_hirth@brown.edu
3:40 PM
RHEOLOGY OF THE LOWER CRUST AND UPPER MANTLE IN THE ACTIVE BOUNDARY BETWEEN THE PACIFIC PLATE AND BAJA CALIFORNIA MICROPLATE
CHATZARAS, Vasileios1, VAN DER WERF, Thomas2, KRIEGSMAN, Leo M.3, KRONENBERG, Andreas K.4, TIKOFF, Basil1 and DRURY, Martyn2, (1)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (2)Department of Earth Sciences, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD, Netherlands, (3)Department of Research & Education, Naturalis Biodiversity Center, Darwinweg 2, Leiden, 2333 CR, Netherlands, (4)Geology and Geophysics, Texas A&M University, College Station, TX 77843, chatzaras@wisc.edu
3:55 PM
STRAIN ACCOMMODATION AND TRANSFER ACROSS THE NORTHERN AND CENTRAL WALKER LANE TRANSITION: KINEMATIC LINKING OF ROTATING AND TRANSLATING CRUST IN AN EVOLVING PLATE BOUNDARY
CARLSON, Chad W. and FAULDS, James E., Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, carlson@nevada.unr.edu
4:10 PM
TRACKING EFFICIENCY ASSOCIATED WITH FAULT SYSTEM REORGANIZATION IN LABORATORY AND NUMERICAL EXPERIMENTS
COOKE, Michele L.1, MCBECK, Jessica A.2, HATEM, Alex E.3, TOENEBOEHN, Kevin1 and BEYER, Jennifer L.1, (1)Geosciences, University of Massachusetts Amherst, Amherst, MA 01003-9297, (2)Department of Physics, University of Oslo, Olso, Norway, (3)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089, cooke@geo.umass.edu
4:25 PM
IMPACT OF FAULTING IN SILICICLASTICS: A CASE STUDY IN A TURBIDITE SUCCESSION
RIEGEL, Hannah1, ZAMBRANO, Miller2, JABLONSKA, Danica1, TONDI, Emanuele2, AGOSTA, Fabrizio3, MATTIONI, Luca4 and RUSTICHELLI, Andrea1, (1)School of Science and Technology - Geology Division, University of Camerino, Via Gentile III Da Varano, Scienze e Terra, Camerino, VA 62032; Reservoir Characterization Project (www.rechproject.com), Camerino, 62032, Italy, (2)Reservoir Characterization Project (www.rechproject.com), Camerino, 62032, Italy, (3)Science Department, Basilicata University, Basilicata, 85028; Reservoir Characterization Project (www.rechproject.com), Camerino, 62032, Italy, (4)ENGIE Group, Paris, 51100, riegelhb@gmail.com
4:40 PM
NEW PSEDOTACHYLYTE OCCURRENCES FOUND ON THE LITTLE COTTONWOOD STOCK -- PRODUCED FROM A MEGA-SCALE LANDSLIDE EVENT
PERFILI, Christopher M., KEITH, Jeffrey D., RITTER, Scott M., MISURACA, Tia, JORDAN, Lars, MARTIN, Samuel, KINDRED, Thane, HOOD, Steven, DUNKLEY, Riley and PALLO, Gage, Department of Geological Sciences, Brigham Young University, S389 ESC, Provo, UT 84602, chrisperfili@gmail.com
 
4:55 PM
Discussion
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