2005 Salt Lake City Annual Meeting (October 16–19, 2005)

Session No. 208
Wednesday, 19 October 2005: 8:00 AM-12:00 PM

Structural Geology II: Pseudotachylytes, Shear Zones, and Vorticity

 

Tim F. Wawrzyniec and Joseph L. Allen, Chairs
Paper #
Start Time
1
8:00 AM
RETROGRADED ECLOGITE-FACIES PSEUDOTACHYLITES AS DEEP-CRUSTAL PALEOSEISMIC FAULTS WITHIN CONTINENTAL BASEMENT OF LOFOTEN, NORTH NORWAY
KASSOS, Gabe1, STELTENPOHL, Mark G.1, GARNER, George1 and ANDRESEN, Arild2, (1)Department of Geology and Geography, Auburn Univ, Petrie Hall, Auburn, AL 36849, (2)Department of Geology, Univ of Oslo, 1047 Blindern, 0316 Oslo, Oslo, Norway, kassoga@auburn.edu, kassoga@auburn.edu
2
8:15 AM
PALEOMAGNETIC ASSESSMENT OF PSEUDOTACHYLITES IN THE CHIAPAS MASSIF, MEXICO
MOLINA, Roberto Stanley, Centro de Geociencias, Universidad Nacional Autónoma de México, Campus UNAM Juriquilla, Km 13 Carretera San Luis Potosí, Querétaro, 76230, Mexico, GEISSMAN, John W., Department of Earth and Planetary Sciences, University of New Mesico, 203 Northrop Hall, Albuquerque, NM 87131, BODO, Weber, Departamento de Geología, CICESE, Km 107 Carr. Tijuana-Ensenada, Ensenada, 22860, Mexico, WAWRZYNIEC, Tim F., Dept. of Earth and Planetary Sciences, The University of New Mexico, Paleomagnetism Laboratory, 141 Northrop Hall, Albuquerque, NM 87131 and MUGGLETON, Scott, Earth and Planetary Sciences, Univ of New Mexico, Albuquerque, NM 87131, rmolina@geociencias.unam.mx, rmolina@geociencias.unam.mx
3
8:30 AM
GEOCHEMISTRY AND GEOCHRONOLOGY OF PSEUDOTACHYLYTES OF THE ALPINE FAULT, NEW ZEALAND
TOURSCHER, Sara N.1, VAN DER PLUIJM, Ben A.1 and WARR, Laurence N.2, (1)Department of Geological Sciences, University of Michigan, 1100 N. University, 2534 C.C. Little Building, Ann Arbor, MI 48109-1005, (2)Institute for Geography and Geology, University of Greifswald, Friedrich-Ludwig-Jahn-Str. 17A, Greifswald, 17487, Germany, stours@umich.edu, stours@umich.edu
4
8:45 AM
GRIZZLY CREEK SHEAR ZONE: A NEWLY RECOGNIZED FRICTIONAL–PLASTIC DEFORMATION SYSTEM IN THE WHITE RIVER UPLIFT, COLORADO
ALLEN, Joseph L.1, SHAW, Colin A.2, FERRI, Felicity E.1, GANAK, Megan E.1, GRAVES, Abbey S.2, JOHNSON, Anthony G.1, LYMAN, Shawn J.2 and OFSA, Jessica L.1, (1)Geology and Physical Sciences, Concord University, Athens, WV 24712, (2)Department of Geology, Univ. Wisconsin, Eau Claire, 105 Garfield Ave, Eau Claire, WI 54702, allenj@concord.edu, allenj@concord.edu
5
9:00 AM
APPRESSED ASYMMETRIC FOLDS AND ASSOCIATED BOOKSHELF GLIDING IN A SOUTH INDIAN SHEAR ZONE
BHATTACHARYYA, Tapas, Department of Geological Sciences, Florida State University, 108 Carraway Buildings, Tallahassee, FL 32306 and BARAL, Mohan Chand, Department of Geology, Jogamaya Devi College, S.P. Mukherjee Road, Kolkata, 700026, India, bhattacharyya@quartz.gly.fsu.edu, bhattacharyya@quartz.gly.fsu.edu
6
9:15 AM
HIGH-CL AQUEOUS FLUID INFILTRATION AND STRAIN LOCALIZATION IN A GARNET AMPHIBOLITE FROM THE SEVE NAPPE IN THE NORTHERN SWEDISH CALEDONIDES
BAIRD, Graham B.1, BHATTACHARYYA, Prajukti2, WHITNEY, Donna L.1 and HUDLESTON, Peter J.3, (1)Department of Geology and Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455, (2)Geography and Geology, Univ of Wisconsin - Whitewater, 328 Salisbury Hall, 800 Main St, Whitewater, WI 53190, (3)Department of Geology and Geophysics, Univ Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455, bair0042@umn.edu, bair0042@umn.edu
7
9:30 AM
CAUSES OF SHEAR LOCALIZATION AND SHEAR ZONE GEOMETRY IN PRECAMBRIAN GRANITIC ROCKS
BHATTACHARYYA, Prajukti, Geography and Geology, Univ of Wisconsin - Whitewater, 328 Salisbury Hall, 800 Main St, Whitewater, WI 53190 and CZECK, Dyanna M., Geosciences, Univ of Wisconsin-Milwaukee, PO Box 413, Milwaukee, WI 53201, bhattacj@uww.edu, bhattacj@uww.edu
8
9:45 AM
TESTING THE UTILITY OF THE PORPHYROCLAST HYPERBOLIC DISTRIBUTION METHOD OF KINEMATIC VORTICITY ANALYSIS
FORTE, Adam M., Department of Geology, University of California Davis, Davis, CA 95616 and BAILEY, Christopher M., Department of Geology, College of William and Mary, Williamsburg, VA 23186, amforte@ucdavis.edu, amforte@ucdavis.edu
9
10:00 AM
RF/φ ANALYSIS OF MYLONITIC ROCKS IN THE COUGAR CREEK COMPLEX, OREGON – IDAHO, AND POTENTIAL USE OF SC'-TYPE EXTENSIONAL SHEARBANDS AS QUANTITATIVE VORTICITY INDICATORS
KURZ, Gene, Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and NORTHRUP, C.J., transpression@yahoo.com, transpression@yahoo.com
10
10:15 AM
VORTICITY ANALYSIS OF THE WESTERN IDAHO SHEAR ZONE
DAIR, Laura, Geosciences, SUNY-Geneseo, 1 College Circle, Geneseo, NY 14454 and GIORGIS, Scott, Geological Sciences, SUNY Geneseo, 1 College Circle, Geneseo, NY 14454, lcd3@geneseo.edu, lcd3@geneseo.edu