2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 273 Wednesday, 21 October 2009
1:30 PM-5:30 PM, Oregon Convention Center: B110/111/112

T48. Living on the Edge: Deformation along the Cascadia Margin (GSA Structural Geology and Tectonics Division)

Chris Goldfinger, Kelin Wang, Russell C. Evarts and Ray E. Wells, Presiding
 Paper #Start Time
273-11:30 PM DEFORMATION OF THE CENTRAL CASCADIA ACCRETIONARY PRISM FROM A 2-YEAR ONSHORE/OFFSHORE SEISMIC ARRAY: TREHU, Anne M. and WILLIAMS, Mark C., College of Oceanic & Atmospheric Sciences, Oregon State Univ, 104 Ocean Administration Building, Corvallis, OR 97331, trehu@coas.oregonstate.edu
273-21:50 PM DEFORMATION OF THE CASCADIA ACCRETIONARY PRISM DRIVEN BY MEGATHRUST EARTHQUAKES: WANG, Kelin, Geological Survey of Canada, Pacific Geoscience Centre, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada, kwang@nrcan.gc.ca and HU, Yan, School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 2Y2, Canada
273-32:05 PM PARTICLE DYNAMICS SIMULATIONS OF COHESIVE ACCRETIONARY PRISMS: APPLICATIONS TO CASCADIA: MORGAN, Julia K., Department of Earth Science, Rice University, MS-126, 6100 Main Street, Houston, TX 77005, morganj@rice.edu
273-42:20 PM STRUCTURE OF THE CASCADIA ACCRETIONARY WEDGE OFFSHORE WASHINGTON: BOOTH-REA, Guillermo1, KLAESCHEN, Dirk2, GREVEMEYER, Ingo2, and RESTON, Timothy3, (1) Departamento de Geodinámica, Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, Av. Fuentenueva s/n, Granada, 18002, Spain, gbooth@ugr.es, (2) Dynamik des Ozeanbodens, IFM-GEOMAR, Leibnitz Institute of Marine Sciences, Wischhofstrasse 1-3, Kiel, D-20148, Germany, (3) School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B152TT, United Kingdom
273-52:40 PM STRUCTURAL INFLUENCES ON CASCADIA RUPTURE PATCHES AND WIDTH: GOLDFINGER, Chris1, PRIEST, George R.2, WANG, Kelin3, ZHANG, Yinglong4, WITTER, Robert C.5, and BAPTISTA, António M.4, (1) Coas, Oregon State University, Ocean Admin Bldg 104, Corvallis, OR 97331, gold@coas.oregonstate.edu, (2) Oregon Department of Geology and Mineral Industries, Newport Coastal Field Office, PO Box 1033, Newport, OR 97365, (3) Geological Survey of Canada, Pacific Geoscience Centre, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada, (4) OGI School of Science and Engineering, Oregon Health & Science University, Portland, OR 97291 1000, (5) Newport Coastal Field Office, Oregon Department of Geology and Mineral Industry, P.O. Box 1033, Newport, OR 97365
273-62:55 PM FAULT DEFORMATION MODELS FOR GENERATION OF TSUNAMIS FROM THE CASCADIA SUBDUCTION ZONE: IMPLICATIONS FOR SEISMIC AND TSUNAMI HAZARDS ON THE WASHINGTON AND NORTHERN OREGON COAST: PRIEST, George R.1, WANG, Kelin2, GOLDFINGER, Chris3, ZHANG, Yinglong4, WITTER, Rob5, and BAPTISTA, António M.4, (1) Oregon Department of Geology and Mineral Industries, Newport Coastal Field Office, PO Box 1033, Newport, OR 97365, george.priest@dogami.state.or.us, (2) Geological Survey of Canada, Pacific Geoscience Centre, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada, (3) COAS, Oregon State University, Corvallis, OR 97331, (4) OGI School of Science and Engineering, Oregon Health & Science University, Portland, OR 97291 1000, (5) Coastal Field Office, Oregon Department of Geology, P.O. Box 1033, Newport, OR 97365
 3:10 PM Break
273-73:25 PM UPLIFT ASSOCIATED WITH SLOW SLIP EVENTS ON THE CASCADIA SUBDUCTION ZONE RESOLVED IN TIDAL RECORDS: WELDON, Ray J., Department of Geological Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97403, ray@uoregon.edu, LIVELYBROOKS, Dean, Department of Physics, University of Oregon, 1371 E 13th Avenue, Eugene, OR 97403, and SCHMIDT, David, Department of Geological Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97403-1272
273-83:45 PM CURRENT TECTONICS AND DEFORMATION IN NORTHERN VANCOUVER ISLAND, SOUTHERN QUEEN CHARLOTTE ISLANDS, AND THE ADJACENT MAINLAND: HIPPCHEN, Sabine1, MAZZOTTI, Stephane2, and HYNDMAN, Roy D.2, (1) School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8P5C2, Canada, hippchen@uvic.ca, (2) Pacific Geoscience Centre, Geological Survey of Canada, Sidney, BC V8L 4B2, Canada
273-104:00 PM THE GALES CREEK FAULT ACCOMMODATES LARGE DEXTRAL OFFSET IN THE OREGON FOREARC: WELLS, Ray E., U.S. Geological Survey, 345 Middlefield Rd, MS 973, Menlo Park, CA 94025, rwells@usgs.gov, BLAKELY, Richard J., US Geological Survey, 345 Middlefield Rd, MS 989, Menlo Park, CA 94025, MCPHEE, Darcy K., U.S. Geol Survey, 345 Middlefield Road, Menlo Park, CA 94025, and LANGENHEIM, Victoria, U. S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025
273-94:15 PM Paper Withdrawn
273-114:15 PM UPDATE OF THE PACIFIC NORTHWEST GPS VELOCITY FIELD: A KEY TO THE ACTIVE TECTONICS OF CASCADIA: KING, Robert W., Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, rwk@chandler.mit.edu, MCCAFFREY, Robert, Earth & Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, PAYNE, Suzette J., Structural and Seismic Analysis, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415-2203, and QAMAR, Tony, University of Washington, Seattle, 98195
 4:35 PM Discussion- what controls along-strike variations in seismogenic behavior at Cascadia?

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