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Joint 120th Annual Cordilleran/74th Annual Rocky Mountain Section Meeting - 2024

Session No. 17
Wednesday, 15 May 2024: 1:30 PM-5:30 PM
Maple Ballroom (Davenport Grand Hotel)

T19. Structure and Tectonics of the North American Cordillera and Rocky Mountains II

GSA Geophysics and Geodynamics Division; GSA Energy Geology Division

 

David Pearson and Ryan B. Anderson, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
17-1
1:35 PM
TRACKING THE ACCRETION OF SILETZIA WITH MAGNETIC ANOMALIES: HOW ANCIENT SPREADING CENTERS AND THRUST STRUCTURES MAY IMPACT MODERN TECTONIC DEFORMATION
ANDERSON, Megan L.1, LAU, Todd R.1, BLAKELY, Richard J.2, WELLS, Ray E.2, DRAGOVICH, Joe3, HORST, Alison4, AMARAL, Chelsea5, BAUER, Anita1 and POLENZ, Michael1, (1)Department of Natural Resources, Washington Geological Survey, 1111 Washington St SE, Olympia, WA 98504, (2)U.S. Geological Survey, Geology, Minerals, Energy and Geophysics Science Center, 1819 SW 5th Ave., #336, Portland, OR 97201, (3)Dragovich Geo-Consulting, 3050 Carpenter Hills Loop SE, Lacey, WA 98503, (4)Geotechnical Resources, Inc., 9750 SW Nimbus Ave, Beaverton, OR 97008, (5)U.S Geological Survey, One Denver Federal Center, P.O. Box 25046, MS964, Denver, CO 80225
17-2
1:55 PM
EARLY EOCENE VOLCANISM IN THE CORDILLERAN OROGEN OF NORTHWESTERN NORTH AMERICA AND ITS TECTONIC IMPLICATIONS
VAN WAGONER, Nancy, Physical Sciences, Thompson Rivers University, Kamloops, BC V2C OC8, Canada and OOTES, Luke, British Columbia Geological Survey, Ministry of Energy, Mines and Low Carbon Innovation, Victoria, BC V8W 9N3, Canada
17-3
2:15 PM
TECTONIC AND MAGMATIC CONSTRUCTION OF LOWER CRUST IN THE SOUTHERN CALIFORNIA BATHOLITH
SCHWARTZ, Joshua, PhD, Department of Geological Sciences, California State University Northridge, Northridge, CA 91330, MIRANDA, Elena, Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Live Oak Hall, Northridge, CA 91330, KLEPEIS, Keith, Department of Geography and Geoscience, University of Vermont, 180 Colchester Avenue, Burlington, VT 05405, MORA-KLEPEIS, Gabriela, Department of Geography and Geosciences, University of Vermont, Burlington, VT 05405, LACKEY, Jade Star, Geology Department, Pomona College, Claremont, CA 91711 and TIBALDI, Alina, Departamento de Geología, Universidad Nacional de Río Cuarto, Río Cuarto, X5804BYA, Argentina
17-4
2:35 PM
TIME TO ABANDON THE LARAMIDE: THE SOUTHWEST U.S. IS PART OF THE MEXICAN CORDILLERAN OROGENIC WEDGE
CHAPMAN, Jay, Geological Sciences Department, University of Texas-El Paso, El Paso, TX 79902 and FITZ-DIAZ, Elisa, Instituto de Geologia, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad, No. 3000, UNAM CU, Coyoacán, CDMX, Mexico City, DF 04510, Mexico
17-5
2:55 PM
MONOLITHOLOGIC, POLYMICTIC BRECCIAS REFLECT LATE CRETACEOUS TECTONIC DEVELOPMENT OF THE NEVADAPLANO CREST AND WESTWARD ENCROACHMENT OF THE SHEEP PASS BASIN, SEVIER OROGENIC HINTERLAND, CENTRAL NEVADA
MCDONALD, Scott, 1107 North St. SE, Tumwater, WA 985013532
17-6
3:15 PM
EXAMINING CENOZOIC EXTENSION ACROSS THE CORDILLERA THROUGH LOW-TEMPERATURE THERMOCHRONOLOGY
JESS, Scott, Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada and ENKELMANN, Eva, Department of Geoscience, University of Calgary, Earth Sciences 118, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
 
3:35 PM
Break
17-7
3:50 PM
OLIGOCENE TO PLIOCENE MAGMATIC AND STRUCTURAL EVOLUTION OF THE GULF OF CALIFORNIA MARGIN IN CENTRAL BAJA CALIFORNIA (MEXICO)
BUSBY, Cathy, Earth and Planetary Sciences, University of California Davis, Davis, CA 95616, GRAETTINGER, Alison H., Earth and Environmental Sciences, University of Missouri - Kansas City, 5100 Rockhill Rd., Flarsheim Hall 420, Kansas City, MO 64110, LÓPEZ-MARTÍNEZ, Margarita, Depto. Geología, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, México, Ensenada, BJ, Mexico, OROZCO-ESQUIVEL, Teresa, Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Blvd. Juriquilla 3001, Querétaro, EM 76230, Mexico, PUTIRKA, Keith, Department of Earth and Environmental Sciences, California State University - Fresno, Fresno, CA 93740 and NIEMI, Tina, Earth and Environmental Sciences, University of Missouri - Kansas City, Kansas City, MO 64110-2446
17-8
4:10 PM
BETWEEN TWO FAULTS: STRUCTURALLY CONTROLLED EXHUMATION PATTERNS ALONG THE DENALI FAULT SYSTEM
ROSENTHAL, Jacob, Syracuse University, Department of Earth and Environmental Sciences, 141 Crouse Drive, 204 Heroy Geology Building, Syracuse, NY 13244, FITZGERALD, P.G., Department of Earth and Environmental Sciences, Syracuse University, Syracuse, NY 13244 and BENOWITZ, Jeffrey, Department of Geological Sciences, University of Colorado Boulder, Boulder, CO 80309
17-9
4:30 PM
INTERPLAY BETWEEN ARC PLUTONISM AND STRAIN PARTITIONING ALONG THE DENALI FAULT, ALASKA
REGAN, Sean1, MARBLE, Sean2, ROESKE, Sarah M.3, SCHMITZ, Mark4, MILLER, McKenzie2 and COSTIGAN, Jim2, (1)U.S. Geological Survey, Central Mineral and Environmental Resources Science Center, Denver Federal Center, Denver, CO 80225, (2)Dept of Geosciences, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702, (3)Earth and Planetary Sciences, University California- Davis, One Shields Avenue, Davis, CA 95616, (4)Department of Geosciences, Boise State University, Boise, ID 83725
17-10
4:50 PM
IDENTIFYING THE SIGNATURE AND MECHANISM OF LONG-TERM, PERMANENT STRAIN ALONG THE CASCADIA SUBDUCTION ZONE COASTLINE IN SOUTHWESTERN WASHINGTON
STANTON, Kelsay M.1, CRIDER, Juliet2, ANDERSON, Megan1, LAU, Todd R.1, STAISCH, Lydia3 and KELSEY, Harvey M.4, (1)Department of Natural Resources, Washington Geological Survey, 1111 Washington St SE, Olympia, WA 98504, (2)Dept. Earth and Space Sciences, University of Washington, Seattle, WA 98195, (3)U.S. Geological Survey, 2130 SW 5th Ave, Portland, OR 97201, (4)Geology Department, Cal Poly Humboldt, Arcata, CA 95521
17-11
5:10 PM
NEW SURFACE EXPOSURE AGES, SLIP RATES, AND PALEOSEISMIC EVIDENCE OF ACTIVE EXTENSIONAL FAULTING NEAR MOUNT HOOD, OREGON
STREIG, Ashley1, MADIN, Ian P.1, DUNNING, Andrew1, CARLSON, Michelle1, BENNETT, Scott E.K.2, ROBERTS, Nick1, PETERSON, Johnathan1, BALCO, Greg3 and AMIDON, William4, (1)Department of Geology, Portland State University, 1721 SW Broadway Ave, Portland, OR 97201, (2)U.S. Geological Survey, Geology, Minerals, Energy and Geophysics Science Center, 1819 SW 5th Ave., #336, Portland, OR 97201, (3)Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, (4)Geology Department, Middlebury College, Middlebury, VT 05753
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