Session: D36. Recent Advances in Tectonics and Structural Geology (GSA Connects 2022 meeting in Denver, Colorado)

Paper #

Start Time

250-1

1:30 PM

MAKING SENSE OF MULTIPLY DEFORMED SHEAR ZONE ROCKS USING INTEGRATED EBSD, CVA, AND PETROCHRONOLOGIC ANALYSES (Invited Presentation)

MIRANDA, Elena¹, BROWN, Virginia¹, SCHWARTZ, Joshua, PhD¹ and KLEPEIS, Keith², (1)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, (2)Department of Geography and Geoscience, University of Vermont, 180 Colchester Avenue, Burlington, VT 05405

250-2

1:45 PM

MICROSTRUCTURAL AND TEXTURAL ANALYSIS OF GRANULITES IN THE MOUNT HAY BLOCK, CENTRAL AUSTRALIA: IMPLICATIONS FOR THE RHEOLOGY OF NATURALLY DEFORMED POLYPHASE LOWER CRUSTAL MATERIALS (Invited Presentation)

KRUCKENBERG, Seth, Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Avenue, Devlin Hall 213, Chestnut Hill, MA 02467 and SHEA, Lauren, Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467

250-3

2:00 PM

A PETROLOGIC-MECHANICAL FEEDBACK IN DEFINING THE RHEOLOGY OF THE LOWER CRUST

WINTSCH, Robert, Dept Earth and Environmental Sciences, Wesleyan University, 265 Church St., Middletown, CT 06459 and RESOR, Phillip, Earth and Environmental Sciences, Wesleyan University, 265 Church St, Middletown, CT 06459

250-4

2:15 PM

HOW TO BUILD THE MID-CRUSTAL STRENGTH BEAM: THE ROLE OF MELT EMPLACEMENT IN THE UPPER GRANITE GORGE, GRAND CANYON

CONDIT, Cailey, Dept. of Earth and Space Sciences, University of Washington, Seattle, WA 98195, BONAMICI, Chloe, Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St., Madison, WI 53706, GUEVARA, Victor, Geology Dep, Amherst College, 220 S Pleasant St, Amherst, MA 01002-2372, WILLIAMS, Michael L., Department of Geosciences, University of Massachusetts Amherst, 627 N Pleasant St, Amherst, MA 01003, KARLSTROM, Karl, Department of Earth and Planetary Sciences, University of New Mexico, Northrop Hall, MSCO3-2040, 1 University of New Mexico, Albuquerque, NM 87131, AIKIN, Nicole, Department of Earth and Space Sciences, University of Washington, Seattle, WA 98103, REGAN, Sean, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK 99775-9702 and ROBERTS, Nicolas, Hamilton College, Department of Geosciences, 198 College Hill Rd, Clinton, NY 13323

250-5

2:30 PM

ESTIMATES OF CHEMICAL MASS TRANSFER IN ANCIENT ACCRETIONARY COMPLEXES: IMPLICATION FOR STRAIN ASSOCIATED WITH INTERSEISMIC DEFORMATION ALONG THE PLATE INTERFACE

CHEN, Tsai-Wei¹, FISHER, Donald¹, SMYE, Andrew J.¹, HASHIMOTO, Yoshitaka², RAIMBOURG, Hugues³ and FAMIN, Vincent⁴, (1)Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, (2)Department of Applied Science, Kochi University, Kochi, 780-8072, Japan, (3)Institut des Sciences de la Terre D’Orléans, Université d’Orléans, Orléans, 45100, France, (4)Laboratoire Géosciences Réunion, Université de La Réunion, Saint-Denis, 97744, France

250-6

2:45 PM

PROGRESS CONSTRAINING TECTONOTHERMAL MODELS FOR THE SOUTHERNMOST APPALACHIANS

STOWELL, Harold¹, BOLLEN, Elizabeth M.¹, THIGPEN, Ryan², STELTENPOHL, Mark³ and ALLISON, David T.⁴, (1)Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, (2)Department of Earth and Environmental Sciences, University of Kentucky, 121 Washington Ave., Lexington, KY 40506, (3)Department of Geosciences, Auburn University, Auburn, AL 36849, (4)Earth Sciences, University of South Alabama, 5871 USA Drive N, Mobile, AL 36688

250-7

3:00 PM

KINEMATIC INDICATORS WITHIN THE BELL PASS MÉLANGE ADJACENT TO THE WELKER PEAK AND SHUKSAN THRUSTS, SHUKSAN ARM, WASHINGTON

RICHTER, Addison, Dept. of Earth Sciences, University of Oregon, 1585 E 13th Ave, Eugene, OR 97403 and MILLER, Marli, Department of Earth Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97403

250-8

3:15 PM

A RECORD OF TRANSITION FROM PASSIVE TO CONVERGENT MARGIN AT THE DEVONIAN-CARBONIFEROUS BOUNDARY OF WESTERN LAURENTIA (NORTH AMERICA)

HEDHLI, Makram¹, MATTHEWS, William A.², HADLARI, Thomas³, ALONSO-TORRES, Daniel², GRASBY, Stephen E.⁴ and BEAUCHAMP, Benoit⁵, (1)Natural Resources Canada, Geological Survey of Canada, 3303 33st NW, Calgary, AB T2L 2A7, Canada, (2)Department of Geoscience, University of Calgary, Earth Sciences 118, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada, (3)Natural Resources Canada, Geological Survey of Canada - Calgary, 3303 33rd Street NW, Calgary, AB T2L 2A7, Canada, (4)Geological Survey of Canada, Natural Resources Canada, 3303 33rd Street NW, Calgary, AB T2L 2A7, Canada, (5)Department of Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada

250-9

3:30 PM

THRUST OROGEN CROSS FAULTS: NEW DATA ON THE HIMALAYAN BENKAR FAULT ZONE

GIRI, Bibek¹, HUBBARD, Mary¹, KC, Bishal² and GAJUREL, Ananta², (1)Department of Earth Sciences, Montana State University, PO Box 173480, Bozeman, MT 59717, (2)Geology, TriChandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal

250-10

3:45 PM

THE CENTRAL SUB-ANDEAN FORELAND BASIN: AN ANALYSIS OF THE FLEXURAL WAVE COUPLED TO BASIN SHORTENING

FERRONI, Felipe R., Geosciences, University of Arizona, 1040 E 4th Street, Tucson, AZ 85721

250-11

4:00 PM

Withdrawn

250-12

4:15 PM

SURFACE PROCESSES AND EVOLUTION OF RIFTING IN ETHIOPIA

MULUNEH, Ameha, School of Earth Sciences, Addis Ababa University, Addis Ababa, Ethiopia; Geodynamic Modelling, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany, BRUNE, Sascha, Geodynamic Modelling, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany, CORTI, Giacomo, Institute of Geosciences and Earth Resources, National Research Council of Italy, Florence, 50121, Italy and KEIR, Derek, Department of Earth Sciences, University of Florence, Florence, 50121, Italy

250-13

4:30 PM

THE LONGMONT DETACHMENT MEGALANDSLIDE EAST OF BOULDER, COLORADO

KITTLESON, Ken, Aurora, CO 80014

250-14

4:45 PM

FRACTURE APERTURE MODERATES THERMAL WEATHERING PROCESSES IN FRACTURED SEDIMENTARY ROCKWALLS

NIELSEN, Julia P., GAGE, Henry J.M. and EYLES, Carolyn H., School of Earth, Environment & Society, McMaster University, 1280 Main St W, Hamilton, ON L8S 4K1, Canada

250-15

5:00 PM

SEASONALITY OF ROCKWALL THERMAL REGIMES IN A TEMPERATE CLIMATE

GAGE, Henry, NIELSEN, Julia and EYLES, Carolyn, School of Earth, Environment & Society, McMaster University, 1280 Main St W, Hamilton, ON L8S 4K1, Canada

250-16

5:15 PM

SEISMIC AMPLIFICATION AND REFRACTION FROM ONSHORE AND OFFSHORE FAULT-BOUNDED SYNCLINES FROM THE GREAT SAND DUNE AND SYCAMORE CANYON AREA TO POINT MUGU, WESTERN SANTA MONICA MOUNTAINS, SOUTHERN CALIFORNIA

SAENZ, Joseph, Oxnard College , Camarillo, CA 93012, DENISON, Frank E., Frank Denison Geology (Consultant), 867 Hartglen Avenue, Westlake Village, CA 91361, MODUGNO, Andrew, Los Angeles Unified School District, Los Angeles, CA 90017, O'NEIL, Thomas J., Oxnard College, 4000 Rose Avenue, Oxnard, CA 93030, MICHENER, Stuart, Consulting Geologist, Pasadena, CA 91107 and GARZA, Lazaro, Geology Department, Western Washington University, 516 High Street, Bellingham, WA 98225