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Cordilleran Section - 117th Annual Meeting - 2021

Session No. 9
Thursday, 13 May 2021: 8:30 AM-12:30 PM
UNR Dept of Geological Sciences & Engineering Room (Online)

T8. Tectonic and Magmatic Thickening of Mesozoic North American Cordillera

 

Andrew Zuza, Wenrong Cao and Sean Long, Advocates
Paper #
Start Time
 
8:30 AM
Introductory Remarks
9-1
8:35 AM
THE NEVADAPLANO: WHEN, WHY, AND HOW HIGH?
LUND SNEE, Jens-Erik, U.S. Geological Survey, Geosciences & Environmental Change Science Center, PO Box 25046, MS 980, Denver, CO 80225-0046 and MILLER, Elizabeth L., Department of Geological Sciences, Stanford University, Stanford, CA 94305
9-2
8:55 AM
CRUSTAL THICKENING CAUSED BY THE CLOCKWISE ROTATION OF THE CENTRAL IDAHO BLOCK: ROLE OF THE LEWIS AND CLARK LINE AND IMPLICATIONS FOR THE TECTONICS OF MONTANA
TIKOFF, Basil, 1215 W Dayton StGeoscience, 1215 W Dayton St, Madison, WI 53706-1600, FAYON, Annia K., Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, KELSO, Paul, Department of Geology and Physics, Lake Superior State University, 650 W. Easterday Ave, Sault Ste. Marie, MI 49783 and GASCHNIG, Rich, 1 University Ave Richard Gaschnig, EEAS, 1 University Ave, Lowell, MA 01854-2827
9-3
9:15 AM
LATE JURASSIC DOMING AND CONSTRICTIONAL DEFORMATION IN THE CENTRAL KLAMATH MOUNTAINS, CA AND OR
GATES, Katie1, YOSHINOBU, Aaron S.2, BARNES, Calvin1, DAILEY, Shane R.3 and LEIB, Susan E.3, (1)Department of Geosciences, Texas Tech University, 2500 Broadway, Lubbock, TX 79409, (2)Department of Geosciences, Texas Tech University, 1200 Memorial Circle, Lubbock, TX 79409, (3)Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053
 
9:35 AM
Break
9-4
9:50 AM
MID-CRETACEOUS HIGH-VOLUME PLUTONISM IN NW NEVADA, BUT NO NEVADAPLANO
VAN BUER, Nicholas J., Department of Geological Sciences, California State Polytechnic University, Pomona, 3801 W Temple Ave, Pomona, CA 91768
9-5
10:10 AM
AGE AND GEOCHEMISTRY OF THE MONARCH DIVIDE INTRUSIONS: TRANSITIONAL MAGMATISM IN THE SIERRAN ARC
HRUSKA, Grace, Geology Department, Pomona College, 185 E. Sixth Street, Claremont, CA 91711, LACKEY, Jade Star, Department of Geology, Pomona College, Claremont, CA 91711 and MCCARTY, Kyle, Geology Department, Pomona College, Claremont, CA 91711
9-6
10:30 AM
CONTINENTAL SUBDUCTION AS A MECHANISM FOR EMPLACEMENT OF THE ROBERTS MOUNTAINS THRUST IN NEVADA
DUNHAM, John, Union Oil Company of California, Retired, Los Angeles, CA 90017
Recorded Presentation
Handouts
  • DUNHAM_GSA_Cord_Presentation_13may21.pdf (5.6 MB)
    •  
    10:50 AM
    Discussion
    9-7
    11:05 AM
    PETROGENESIS, RARE EARTH ELEMENT CONTENTS, AND TECTONIC IMPLICATIONS OF A LATE DEVONIAN ALKALINE INTRUSION, SOUTHEAST ALASKA
    KARL, Susan M., U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, DOSTAL, Jaroslav, Department of Geology, St. Mary's University, Halifax, NS B3H 3C3, Canada, FRIEDMAN, Richard M., Dept. Earth and Ocean Sciences, University of British Columbia, 6339 Stores Rd, Vancouver, BC V6T1Z4, Canada, MORTENSEN, James K., Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, LAYER, Paul W., Department of Geology and Geophysics, Univ of Alaska Fairbanks, Fairbanks, AK 99701, FORD, Arthur B., U.S. Geological Survey, retired, Menlo Park, CA 94025 and CORNEY, Randolph, Department of Geology, St. Mary's University, Halifax, NS B3H3C3, Canada
    9-8
    11:10 AM
    PRIMARY P-FRACTURE ARRAYS IN THE CATHEDRAL PEAK GRANODIORITE, SIERRA NEVADA BATHOLITH, CALIFORNIA
    MURPHY, Taylor1, NACHLAS, William O.1, ROBERTS, Nicolas2 and TIKOFF, Basil3, (1)Geoscience, University of Wisconsin - Madison, 1215 W Dayton St, Madison, WI 53706, (2)University of Wisconsin, Madison Department of Geosciences, 1215 W Dayton St, Madison, WI 53706-1600, (3)1215 W Dayton StGeoscience, 1215 W Dayton St, Madison, WI 53706-1600
    9-9
    11:15 AM
    CRITERIA FOR RECOGNITION OF SUBDUCTED (OROCOPIA) SCHIST IN WESTERN ARIZONA
    HAXEL, Gordon1, SINGLETON, John2, JACOBSON, Carl E.3, SEYMOUR, Nikki M.4, SPENCER, Jon5 and BEARD, L. Sue1, (1)USGS, Flagstaff, AZ 86001, (2)Colorado State University, Fort Collins, CO 80523, (3)University of Pennsylvania, West Chester, PA 50011, (4)Stanford University, Stanford, CA 94305, (5)University of Arizona, Tucson, AZ 85721
    Handouts
  • Orocopia Criteria Poster v35 rfs .pdf (3.9 MB)
    • 9-10
    11:20 AM
    MIXED MODE DEFORMATION IN THE TRANSPRESSIONAL GRANT-PARKER SHEAR ZONE, EASTERN SIERRA NEVADA, CA
    RYAN-DAVIS, Juliet, California Institute of Technology Division of GPS, 1200 E. California Blvd., MC 170-25, Pasadena, CA 91125-0001; US Geological SurveyMS 910, 345 Middlefield Rd, Menlo Park, CA 94025-3561, CONDIT, Cailey, University of Washington Earth and Space Sciences, PO Box 351310, Seattle, WA 98195-1310, HILDRETH, Wes, US Geological Survey MS 910, 345 Middlefield Rd, Menlo Park, CA 94025-3561 and FIERSTEIN, Judy, U.S Geological Survey MS-910, 345 Middlefield Rd, Menlo Park, CA 94025-3561
     
    11:25 AM
    Concluding Remarks
    Recorded Presentation
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