2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 224
Wednesday, 21 October 2009: 8:00 AM-12:00 PM
Portland Ballroom 254 (Oregon Convention Center)

P5. Geodynamics from the Cascadia Margin to the High Lava Plains

GSA Geophysics Division; GSA Structural Geology and Tectonics Division

 

Anita L. Grunder, G. Randy Keller, Rick W. Carlson, Michael Brudzinski, Bernie Housen and Basil Tikoff, Conveners
Paper #
Start Time
1
8:00 AM
CENOZOIC BASALTIC VOLCANISM IN THE PACIFIC NORTHWEST
CARLSON, Richard, Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, HART, William K., Department of Geology & Environmental Earth Science, Miami University, 114 Shideler Hall, Oxford, OH 45056 and GROVE, Timothy, Earth, Atmospheric, and Planetary Sciences, MIT, Cambridge, MA 02139, rcarlson@ciw.edu, rcarlson@ciw.edu
2
8:20 AM
MID-MIOCENE EMPLACEMENT OF THE YELLOWSTONE MANTLE PLUME IN THE CASCADIA BACK-ARC REGION
CAMP, Victor E., Geological Sciences, San Diego State Univ, 5500 Campanile Dr, San Diego, CA 92182-1020, vcamp@mail.sdsu.edu, vcamp@mail.sdsu.edu
3
8:40 AM
VARIABLE MANTLE AND CRUSTAL INFLUENCES ON MAGMATISM IN THE CASCADE ARC
DEBARI, S.M., MOORE, N.E. and BAGGERMAN, T., Geology Department, Western Washington University, M.S. 9080, Bellingham, WA 98225, debari@geol.wwu.edu, debari@geol.wwu.edu
4
9:00 AM
SHALLOW, HOT, MANTLE MELTING IN THE HIGH LAVA PLAINS, OREGON
GROVE, Tim, Earth, Atmospheric, and Planetary Sciences, MIT, Building & Room: 54-1220a, Cambridge, MA 02139, BARR, Jay, Earth, Atmospheric and Planetary Sciences, Mass. Inst. of Tech, Cambridge, 02139, TILL, Christy B., US Geological Survey, Volcano Science Center, Menlo Park, CA 94025, DONNELLY-NOLAN, Julie M., U.S. Geological Survey, 345 Middlefield Road, MS 910, Menlo Park, CA 94025 and CARLSON, Richard, Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, tlgrove@mit.edu, tlgrove@mit.edu
5
9:20 AM
ISOTOPIC COMPOSITIONAL CHANGES ACROSS SPACE, TIME, AND BULK ROCK COMPOSITION IN THE HIGH LAVA PLAINS AND NORTHWESTERN BASIN AND RANGE, OREGON
FORD, Mark T.1, CARLSON, Richard2 and GRUNDER, Anita L.1, (1)Department of Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, (2)Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, fordm@geo.oregonstate.edu, fordm@geo.oregonstate.edu
6
9:40 AM
FATE OF WATER IN THE CASCADIA FOREARC UNVEILED BY TELESEISMIC IMAGING
BOSTOCK, Michael G., Department of Earth and Ocean Sciences, The University of British Columbia, 6339 Stores Rd, Vancouver, BC V6T1Z4, Canada, AUDET, Pascal, Seismological Laboratory, University of California Berkeley, 377 McCone Hall, Berkeley, CA 94720-4767, CHRISTENSEN, Nikolas I., Dept. Geology and Geophysics, University of Wisconsin-Madison, Madison, WI 53706, HYNDMAN, Roy D., Pacific Geoscience Centre, Geological Survey of Canada, 9860 W. Saanich, Sidney, BC V8L 4B2, Canada, PEACOCK, Simon M., Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2178-2207 Main Mall, Vancouver, BC V6T1Z4, Canada and RONDENAY, Stephane, Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 54-618, Cambridge, MA 02139, bostock@eos.ubc.ca, bostock@eos.ubc.ca
7
10:00 AM
SEISMIC IMAGING OF THE PACIFIC NORTHWESTERN UNITED STATES
FOUCH, Matthew J., K. Young Consulting, Washington, DC 20005, JAMES, David E., Dept. of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, LONG, Maureen D., Department of Geology and Geophysics, Yale University, New Haven, CT 06520, EAGAR, Kevin C., Shell Exploration and Production Company, Houston, TX 77079, WAGNER, Lara S., Department of Geological Sciences, University of North Carolina - Chapel Hill, Chapel Hill, NC 27599 and ROTH, Jeffrey B., ExxonMobil Exploration Company, 223 Benmar Dr, Houston, TX 77060, mfouch@kyoungconsulting.com, mfouch@kyoungconsulting.com
8
10:20 AM
EPISODIC TREMOR AND SLIP COMPARED WITH SEISMICITY AND SUBDUCTION ZONE STRUCTURE: INTEGRATING THE NEW KID INTO THE EXISTING FRAMEWORK
BRUDZINSKI, Michael1, BOYARKO, Devin1, HOLTKAMP, Stephen1, SIT, Stefany2, ALLEN, Richard3, AUDET, Pascal4 and PORRITT, Robert3, (1)Geology Department, Miami University, 114 Shideler Hall, Oxford, OH 45056, (2)Department of Geology and Environmental Earth Science, Miami University, 250 S. Patterson Avenue, 114 Shideler Hall, Oxford, OH 45056, (3)Seismological Laboratory, University of California Berkeley, 377 McCone Hall, Berkeley, CA 94720-4767, (4)Earth Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada, brudzimr@miamioh.edu, brudzimr@miamioh.edu
9
10:40 AM
CRUSTAL STRUCTURE IN THE HIGH LAVA PLAINS REGION FROM INTEGRATED GEOPHYSICAL STUDIES
KELLER, G. Randy1, COX, Catherine M.1, OKURE, Maxwell S.1, HARDER, Steven2 and HOLLOWAY, Stephen3, (1)School of Geology and Geophysics, University of Oklahoma, Norman, OK 73019, (2)Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, (3)School of Geology and Geophysics, University of Oklahoma, 100 E. Boyd St, Sarkeys Energy Center Suite 710, Norman, OK 73019, grkeller@ou.edu, grkeller@ou.edu
10
11:00 AM
VOLCANIC AND STRUCTURAL SETTING OF THE HIGH LAVA PLAINS, AN INTRACONTINENTAL TRANSFORM ZONE IN THE NORTHWESTERN USA
GRUNDER, Anita L., Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331 and MEIGS, Andrew, Geosciences, Oregon State University, Corvallis, 97331, grundera@geo.oregonstate.edu, grundera@geo.oregonstate.edu
11
11:20 AM
TWO-STAGE OPENING OF THE NORTHWESTERN BASIN AND RANGE IN EASTERN OREGON
MILLIARD, Justin B., Geoscience, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, MEIGS, Andrew, Geosciences, Oregon State University, Corvallis, 97331 and GRUNDER, Anita L., Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, milliarj@geo.oregonstate.edu, milliarj@geo.oregonstate.edu
12
11:40 AM
NEOGENE MAGMATISM AND BLOCK MOTIONS IN THE PACIFIC NORTHWEST
WELLS, Ray E., U.S. Geological Survey, 345 Middlefield Rd, MS 973, Menlo Park, CA 94025 and MCCAFFREY, Robert, Earth & Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, rwells@usgs.gov, rwells@usgs.gov