Cordilleran Section - 115th Annual Meeting - 2019

Session No. 3
Wednesday, 15 May 2019: 8:00 AM-12:20 PM
Room C124 (Oregon Convention Center)

T3. A Simple Twist of Plate: In Honor of the Career Contributions of the Dynamic Duo—Rick Blakely and Ray Wells—to Understanding Plate Interactions and Deformation in Cascadia

 

Andrew Meigs, Scott E.K. Bennett and Peter J. Haeussler, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
3-1
8:05 AM
DEXTRAL SHEAR, CLOCKWISE ROTATION, AND FAULTING IN THE CASCADIA FOREARC
WELLS, Ray E., U.S. Geological Survey, 2130 SW 5th Ave., Portland, OR 97201 and BLAKELY, Richard J., GMEG Menlo Park, U.S. Geological Survey, 345 Middlefield Rd, MS 989, Menlo Park, CA 94025
3-2
8:25 AM
GEOMETRY AND MECHANICS OF INHERITED FOREARC FAULTS ON VANCOUVER ISLAND
REGALLA, Christine1, MORELL, Kristin2, GRAHAM, Audrey3, LYNCH, Emerson M.1, HARRICHHAUSEN, Nicolas3, LEONARD, Lucinda J.4, BENNETT, Scott E.K.5, TERRY, Carina1 and FISCHI, Johanna1, (1)Earth and Environment, Boston University, 685 Commonwealth Ave, Boston, MA 02215, (2)Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106-9630, (3)School of Earth and Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8W0A4, Canada, (4)School of Earth and Ocean Sciences, University of Victoria, PO Box 1700 Station CSC, Victoria, BC V8W 2Y2, Canada, (5)Geology, Minerals, Energy, and Geophysics Science Center, U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 98195-94025
3-3
8:45 AM
FAULT DEFORMATION AT THE BASE OF AND WITHIN THE CRESCENT FORMATION ALONG THE DOSEWALLIPS RIVER, OLYMPIC MOUNTAINS PENINSULA, WASHINGTON, USA
MAHER, Christine M., Department of Geology, Portland State University, PO BOX 751, Portland, OR 97207-0751 and PRICE, Nancy A., Department of Geology, Portland State University, PO Box 751, Portland, OR 97207-0751
3-4
9:05 AM
EVIDENCE FOR AN ACTIVE GALES CREEK FAULT - A DYNAMIC DUO ACTIVE DEFORMATION CONFIRMATION
REDWINE, Joanna1, KLINGER, Ralph E.1, WELLS, Ray E.2, SHERROD, Brian L.3, MAHAN, Shannon A.4, PIETY, Lucille A.1, HOWE, Julia5, BESANA-OSTMAN, Glenda5, LEVINSON, Ryan6, CHUPIK, Colin7, CATALDO, Kirstyn5, NICOVICH, Sylvia Rose5 and ANGSTER, Stephen J.8, (1)Bureau of Reclamation, Seismology, Geomorphology, and Geophysics Group, P.O. Box 25007, 86-68330, Denver, CO 80225, (2)U.S. Geological Survey, 2130 SW 5th Ave., Portland, OR 97201, (3)Earthquake Science Center, U.S. Geological Survey, University of Washington, Box 351310, Seattle, WA 98195, (4)U.S. Geological Survey, Geosciences and Environmental Change Science Center, MS 974, PO Box 25046, Denver, CO 80225, (5)Bureau of Reclamation, Seismology, Geomorphology, and Geophysics Group, Denver, CO 80225, (6)Seismology, Geomorphology, and Geophysics Group, Bureau of Reclamation, P.O. Box 25007, 86-68330, Denver, CO 80225-0007, (7)Nevada Bureau of Mines and Geology, University of Nevada Reno, Reno, NV 89557, (8)U.S. Geological Survey, Box 25046 MS-966, Denver, CO 80225
3-5
9:25 AM
OBLIQUE SLIP HISTORY OF ACTIVE FAULTS ALONG THE WESTERN MARGIN OF THE HOOD RIVER GRABEN, NORTH-CENTRAL OREGON
BENNETT, Scott E.K., U.S. Geological Survey, 345 Middlefield Road, MS973, Menlo Park, CA 94025, WELLS, Ray E., U.S. Geological Survey, 2130 SW 5th Ave., Portland, OR 97201, STREIG, Ashley R., Department of Geology, Portland State University, 1721 SW Broadway Ave, Portland, OR 97201, MADIN, Ian P., Oregon Department of Geology and Mineral Industries, 800 NE Oregon St. #28 Suite 965, Portland, OR 97232 and STELTEN, Mark E., U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025
3-6
9:45 AM
RECONNAISSANCE SUMMARY OF HIGH CASCADES GRABEN STRUCTURES IN CENTRAL AND NORTHERN OREGON
CONREY, Richard M., Geosciences Department, Hamilton College, Clinton, NY 13323, SHERROD, David R., Cascades Volcano Observatory, U.S. Geological Survey, Vancouver, WA 98683 and MCCLAUGHRY, Jason D., Oregon Department of Geology and Mineral Industries, 1995 3rd St, Suite 130, Baker City, OR 97814
 
10:05 AM
Break
3-7
10:20 AM
POTENTIAL-FIELD ANOMALIES ILLUMINATE CASCADIA TECTONIC HISTORY, FROM REGIONAL TO OUTCROP SCALE: WORMS, WIGGLES, AND A STRING OF PEARLS
BLAKELY, Richard J., GMEG Menlo Park, U.S. Geological Survey, 345 Middlefield Rd, MS 989, Menlo Park, CA 94025, WELLS, Ray E., U.S. Geological Survey, 2130 SW 5th Ave., Portland, OR 97201, STAISCH, Lydia M., Arcata, CA 95521, BENNETT, Scott E.K., U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, 345 Middlefield Road, Menlo Park, CA 94025 and SHERROD, Brian L., Earthquake Science Center, U.S. Geological Survey, University of Washington, Box 351310, Seattle, WA 98195
3-8
10:40 AM
LONG TERM EXHUMATION OF THE OREGON COAST RANGE USING DETRITAL THERMOCHONOLOGY FROM THE EOCENE TYEE FORMATION, OREGON, USA
SOUSA, Francis J., College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin Bldg., Corvallis, OR 97331, BIASI, Joseph A., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125 and O’SULLIVAN, Paul, GeoSep Services, 1521 Pine Cone Rd, Moscow, ID 83843
3-9
11:00 AM
BASINAL AND PALEORIVER RESPONSE TO EOCENE ACCRETION OF SILETZIA IN SW OREGON: CONFLICTING DATA AND UNRESOLVED QUESTIONS
DORSEY, Rebecca J., Department of Earth Sciences, University of Oregon, Eugene, OR 97403, BRUTZKUS, Pamela, B&P Laboratories, Inc., Seattle, WA 97403 and MORTIMER-LAMB, Megan, Department of Geological Sciences, California State University, Long Beach, CA 90840
11:20 AM
CRETACEOUS AND CENOZOIC PLATE INTERACTIONS ALONG THE CASCADIA MARGIN, PALEOLATITUDES, THE FIXED-HOTSPOT APPROXIMATION, AND TRUE POLAR WANDER
GORDON, Richard G., WANG, Chengzu, WOODWORTH, Daniel T. and GAASTRA, Kevin, Earth, Environmental, and Planetary Sciences, Rice University, MS 126 6100 Main St., Houston, TX 77005
11:40 AM
A KINEMATIC MODEL FOR THE FORMATION OF THE SILETZ, CRESCENT, AND YAKUTAT TERRANES BY CAPTURE OF COHERENT FRAGMENTS OF THE FARALLON AND RESURRECTION OCEANIC PLATES
MCCRORY, Patricia A., U.S. Geological Survey, Menlo Park, CA 94025 and WILSON, Douglas S., Department of Earth Science, University of California, Santa Barbara, CA 93106
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