GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 217
Tuesday, 24 September 2019: 1:30 PM-5:30 PM
Room 229B, North Building (Phoenix Convention Center)

T76. How Old, How Long, and How Fast: Establishing the Timing, Duration, and Rates of Mid- to Lower-Crustal Deformation

GSA Structural Geology and Tectonics Division; GSA Geochronology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

 

Amy C. Moser, Tarryn Cawood and Calvin A. Mako, Advocates
Paper #
Start Time
1:30 PM
OXYGEN ISOTOPE ZONING AS A TOOL FOR LINKING FABRIC FORMATION TO THERMAL AND FLUID HISTORIES (Invited Presentation)
BONAMICI, Chloe1, KROPF, Gabriel2 and BORCHERS, Brian2, (1)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St., Madison, WI 53706, (2)Department of Mathematics, New Mexico Tech, Socorro, 87801
1:45 PM
DATING DYNAMIC RECRYSTALLIZATION: MICROSTRUCTURAL GEOCHRONOLOGY OF TITANITE
MOSER, Amy C., Department of Earth Science, University of California, Santa Barbara, 1006 Webb Hall, University of California, Santa Barbara, CA 93106-9630, HACKER, Bradley, Earth Science, University of California Santa Barbara, Santa Barbara, CA 93106, STONER, Ryan K., Department of Earth Science, University of California, Santa Barbara, 1006 Webb Hall, Santa Barbara, CA 93106-9630 and GEHRELS, George, Dept. of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721
2:00 PM
MOBILIZATION OF RADIOGENIC PB DURING DYNAMIC RECRYSTALLIZATION OF TITANITE AND DATING THE SYN-MAGMATIC EXTENSIONAL COLLAPSE OF THE SEVIER HINTERLAND
UDY, Nicholas D., Department of Earth Science, Utah Valley University, 800 West University Parkway, Orem, UT 84058 and STEARNS, Michael A., Geology and Geophysics, University of Utah, 135 S 1460 E, Salt Lake City, UT 84112-0111
2:15 PM
TITANITE U-PB PETROCHRONOLOGY REVEALS ~26 MILLION YEARS OF DEFORMATION IN A MID-CRUSTAL HIGH-TEMPERATURE SHEAR ZONE
HARRIGAN, Claire, Department of Geosciences, Boise State University, Boise, ID 83725-1535, SCHMITZ, Mark D., Department of Geosciences, Boise State University, Boise, ID 83725, KAHN, Maureen, Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706 and TIKOFF, Basil, Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706
2:30 PM
INSIGHTS INTO THE EMPLACEMENT OF THE KATHMANDU KLIPPE FROM QUARTZ MICROSTRUCTURES AND TITANITE PETROCHRONOLOGY
JARAMILLO, Valeria, Earth Science, UC Santa Barbara, Santa Barbara, CA 93106, JOHNSON, Thomas A., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, COTTLE, John M., Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, LARSON, Kyle P., Earth, Environmental and Geographic Sciences, University of British Columbia, Okanagan, 3247 University Way, Kelowna, BC V1V 1V7, Canada and KYLANDER-CLARK, Andrew R.C., Earth Science, University of California Santa Barbara, 1006 Webb Hall, University of California, Santa Barbara, CA 93106
2:45 PM
TITANITE PETROCHRONOLOGY OF RETROGRESSED ECLOGITE AND GNEISS IN HIGH-STRAIN DOMAINS OF THE WESTERN GNEISS REGION, NORWAY
BLATCHFORD, Hannah J.1, WHITNEY, Donna L.1, TEYSSIER, Christian1, GORDON, Stacia M.2 and NEWVILLE, Christine E.1, (1)Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, (2)Department of Geological Sciences, University of Nevada, Reno, 1664 N. Virginia St, MS0172, Reno, NV 89557
 
3:00 PM
Discussion: Titanite
 
3:15 PM
Break
3:30 PM
FLOW OF DEEPEST OROGENIC CRUST: PRINCIPLES UNDERLYING THE EXHUMATION OF HIGH-PRESSURE AND ULTRAHIGH-PRESSURE ROCKS
TEYSSIER, Christian, WHITNEY, Donna L. and KORCHINSKI, Megan, Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455
3:45 PM
THE MONAZITE RECORD OF MELTING AND DEFORMATION IN OROGENIC CRUST
DUMOND, Gregory, Department of Geosciences, University of Arkansas, 340 North Campus Drive, Fayetteville, AR 72701
4:00 PM
CONSTRAINTS ON THE AGE OF DUCTILE EXTENSION ALONG THE BASAL SOUTH TIBETAN DETACHMENT, ANNAPURNA RANGE, CENTRAL NEPAL
PYE, Alexandra E.1, HODGES, Kip1, VAN SOEST, Matthijs C.1 and BHANDARI, Basant2, (1)School of Earth and Space Exploration, Arizona State University, 781 Terrace Mall, Tempe, AZ 85287, (2)Tri-Chandra Campus, Tribhuvan University, Ghantaghar, Kathmandu, 44605, Nepal
4:15 PM
A MULTIFACETED APPROACH TO DATE TECTONICALLY-DRIVEN EXHUMATION OF THE HIMALAYAN MIDDLE CRUST
SOUCY LA ROCHE, Renaud, Geological Sciences & Geological Engineering, Queen's University, Bruce Wing/Miller Hall, 36 Union Street, Kingston, ON K7L3N6, Canada; Geological Survey of Canada, Natural Resources Canada, 601 Booth St., Ottawa, ON K1A 0E8, Canada, GODIN, Laurent, Geological Sciences & Geological Engineering, Queen's University, Bruce Wing/Miller Hall, 36 Union Street, Kingston, ON K7L3N6, Canada, COTTLE, John M., Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106 and KELLETT, Dawn, Geological Survey of Canada, Natural Resources Canada, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
4:30 PM
GEON 9 RETROGRESSION IN THE CENTRAL METASEDIMENTARY BELT BOUNDARY ZONE (CMBBZ), GRENVILLE PROVINCE, ONTARIO, CANADA?
MARKLEY, Michelle, ROSEN, Madison Lilith and DUNN, Steven R., Geology & Geography, Mount Holyoke College, South Hadley, MA 01075
4:45 PM
ESTIMATING STRAIN RATE IN A MID-CRUSTAL SHEAR ZONE, AND ITS VARIATION AS SHEAR ZONE WIDTH CHANGES WITH DEPTH
CAWOOD, Tarryn, Department of Earth Sciences, University of Southern California, Zumberge Hall of Science (ZHS), 3651 Trousdale Pkwy, Los Angeles, CA 90089 and PLATT, John, Department of Earth Sciences, Univ of Southern California, 3651 Trousdale Parkway, Zumberge Hall 117, Los Angeles, CA 90089-074
5:00 PM
LONGEVITY OF DUCTILE SHEAR ZONES FROM DIFFUSION GEOSPEEDOMETRY OF KINEMATICALLY-SENSITIVE MINERAL INCLUSIONS (Invited Presentation)
NACHLAS, William O.1, TEYSSIER, Christian2, WHITNEY, Donna L.2 and HIRTH, Greg3, (1)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, (2)Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, (3)Department of Earth, Environmental and Planetary Sciences, Brown University, Box 1846, 324 Brook St, Providence, RI 02912
 
5:15 PM
Discussion: UHP, Monazite, Rates
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