2014 GSA Annual Meeting in Vancouver, British Columbia (19–22 October 2014)

Session No. 65
Sunday, 19 October 2014: 1:00 PM-5:00 PM
116/117 (Vancouver Convention Centre-West)

T13. Tectonics of the Northwest Cordillera II: A Session in Honor of the Career Contributions of Ned Brown, Jim Monger, and Glenn Woodsworth

GSA Structural Geology and Tectonics Division

 

Robert B. Miller, George E. Gehrels, Margaret E. Rusmore and Elizabeth R. Schermer, Advocates
Paper #
Start Time
1:00 PM
PLUTONIC AND STRUCTURAL FRAMEWORK, SOUTHERN COAST MOUNTAINS BATHOLITH, BUTE INLET TO MT WADDINGTON: PRELIMINARY RESULTS
RUSMORE, Margaret E.1, GEHRELS, George E.2, CECIL, M. Robinson3, STOWELL, Harold H.4, WOODSWORTH, Glenn J.5, PECHA, Mark6, YOKELSON, Intan6, CHISOM, Charles1, TRAUTMAN, Marshall7 and BOGUE, Robert R.1, (1)Geology, Occidental College, Los Angeles, CA 90041, (2)Arizona LaserChron Center, Department of Geosciences, University of Arizona, Tucson, AZ 85721, (3)Department of Geological Sciences, California State University Northridge, Northridge, CA 91130-8266, (4)Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, (5)Geol Survey of Canada, 101-605 Robson St, Vancouver, BC V6B 5J3, (6)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (7)Geology, Occidental College, 1600 Campus RD, Los Angeles, CA 90041
1:15 PM
JURA-CRETACEOUS SINISTRAL SHEAR ZONES ALONG THE WESTERN FLANK OF THE CENTRAL AND SOUTHERN COAST MOUNTAIN
GEHRELS, George, Dept. of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721 and RUSMORE, Margaret E., Geology, Occidental College, Los Angeles, CA 90041
1:30 PM
SEISMIC REFRACTION EVIDENCE FOR A LARGE VOLUME OF MELT RESIDUAL BENEATH THE COAST MOUNTAINS BATHOLITH COMPLEX NEAR BELLA COOLA, BRITISH COLUMBIA
HOLE, John A.1, WANG, Kai1, SPENCE, George D.2, STEPHENSON, Andrew L.2, MILLER, Kate C.3, CLOWES, Ronald M.4, HOLLISTER, Lincoln S.5 and ANDRONICOS, Christopher L.6, (1)Geosciences, Virginia Tech, Blacksburg, VA 24061, (2)Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3V6, Canada, (3)Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843, (4)Dept. of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada, (5)Geosciences, Princeton University, Princeton, NJ 08544, (6)Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907
1:45 PM
TILTING AND TRANSLATION IN WESTERN BRITISH COLOMBIA: 40AR/39AR GEOCHRONOLOGY AND PALEOMAGNETISM OF THE SMITH ISLAND BUTEDALE AND ECSTALL PLUTONS AND IMPLICATION FOR THE BAJA-BC HYPOTHESIS
BROWNLEE, Sarah J., Department of Geology, Wayne State University, 0224 Old Main, Detroit, MI 48208, RENNE, Paul R., Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, HOLLISTER, Lincoln S., Geosciences, Princeton University, Princeton, NJ 08544 and FEINBERG, Joshua, Institute for Rock Magnetism, University of Minnesota, Department of Earth Sciences, 310 Pillsbury Drive SE, Minneapolis, MN 55455
2:15 PM
LATE PALEOZOIC DETRITAL ZIRCON U/PB GEOCHRONOLOGY AND HF ISOTOPE GEOCHEMISTRY OF THE ADMIRALTY AND CRAIG SUBTERRANES IN THE KEKU STRAIT REGION, SOUTHEAST ALASKA
WARD, William P.1, MCCLELLAND, William C.1 and GEHRELS, G.E.2, (1)Department of Earth and Environmental Sciences, University of Iowa, Iowa City, IA 52242, (2)Department of Geosciences, University of Arizona, Tucson, AZ 85721
2:30 PM
 
2:45 PM
Break
65-8
3:00 PM
Withdrawn
3:15 PM
THE COLUMBIA PLATEAU REVEALED; LOW TEMPERATURE THERMOCHRONOLOGY ACROSS THE CANADIAN CORDILLERA
GUEST, Bernard, Dept. of Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada, BACQUE, David, Geoscience, University of Calgary, Calgary, AB T2N1N4, Canada, MILES, Naomi, Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada and STOCKLI, Daniel F., Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712
3:30 PM
CONSTRAINTS ON EXTENSION AND EXHUMATION OF THE PRIEST RIVER COMPLEX, NORTHERN IDAHO, FROM ZIRCON U-PB GEOCHRONOLOGY
STEVENS, Liane M.1, BALDWIN, Julia A.1 and CROWLEY, James L.2, (1)Department of Geosciences, University of Montana, Missoula, MT 59812, (2)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535
3:45 PM
THE SIGNIFICANCE OF PALEOGENE FAULTS IN THE RECONSTRUCTION OF METAMORPHIC HISTORIES IN THE CANADIAN CORDILLERA: AN EXAMPLE FROM THE NORTHWESTERN THOR–ODIN DOME OF THE MONASHEE COMPLEX, SOUTHEASTERN BRITISH COLUMBIA
KUIPER, Yvette D., Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, WILLIAMS, Paul F., Department of Earth Sciences, University of New Brunswick, 2 Bailey Drive, Fredericton, NB E3B 5A3, Canada and HAMILTON, Michael A., Jack Satterly Geochronology Lab, Dept. of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1
4:00 PM
MESOZOIC TO CENOZOIC TECTONIC ASSEMBLY OF THE NORTHERN CORDILLERAN COAST BELT: INSIGHT FROM SOUTHWEST YUKON
ISRAEL, Steve A., Yukon Geological Survey, 91807 Alaska HWY, Whitehorse, YT Y1A 5B7, Canada, MURPHY, Donald C., Yukon Geological Survey, Box 2703 (K14), Whitehorse, YT Y1A 2C6, Canada, CROWLEY, James L., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535 and FRIEDMAN, Richard M., Pacific Centre for Isotopic and Geochemical Research, Univ of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada
4:15 PM
JURASSIC TO RECENT TECTONIC EVOLUTION OF NORTH AMERICA: A GPLATES MODEL
HENDERSON, Martha A., University of Victoria now with British Columbia Geological Survey, Ministry of Energy and Mines, PO Box 9320 Stn Prov Govt, Victoria, BC V8W 9N3, Canada, MIHALYNUK, Mitchell G., British Columbia Geological Survey, BC Ministry of Energy and Mines, PO Box 9320 Stn Prov Govt, Victoria, BC V8W 9N3, Canada, SIGLOCH, Karin, Earth Sciences Department, University of Oxford, South Parks Road, Oxford, OX13AN, United Kingdom, JOHNSTON, Stephen T., School of Earth and Ocean Sciences, University of Victoria, Bob Wright Centre, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada and SHEPHARD, Grace, Centre for Earth Evolution and Dynamics, University of Oslo, PO Box 1048 Blindern, Oslo, 0316, Norway
4:30 PM
THE MEXICO-ALASKA MEGASHEAR (170-148 MA)
ANDERSON, Thomas H., Geology and Environmental Science, University of Pittsburgh, Pittsburgh, PA 15260
4:45 PM
INDIA-LIKE COLLISION OF MASSIVE ARC CHEVRON CAUSED NEVADAN OROGENY
MIHALYNUK, Mitchell G., British Columbia Geological Survey, Victoria, BC V8W 9N3, Canada and SIGLOCH, Karin, Earth Sciences Department, University of Oxford, South Parks Road, Oxford, OX13AN, United Kingdom
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