T51F:
Tectonic Evolution of the U.S. Northern Rocky Mountains I Posters

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Session ID#: 13191

Session Description:
The focus of this session is on Mesozoic and Cenozoic tectonics and evolution of the crust and lithosphere of the Rocky Mountains of the northwestern USA.  Recent investigations have focussed on the characterization and modification of the cratonic passive margin, growth of the continent by accretion, orogeny, magmatism, and structural tectonics of this portion of the US Cordillera.  We invite contributions from geology, geochemistry, and geophysics, including recent EarthScope investigations, that improve our understanding of the tectonic driving forces and the crustal and lithospheric deformation and magmatism that define the 4-D evolution of this portion of the continent.
Primary Convener:  John A Hole, Virginia Tech, Blacksburg, VA, United States
Conveners:  Lindsay Lowe Worthington, University of New Mexico, Albuquerque, NM, United States and Basil Tikoff, Univ Wisconsin, Madison, United States
Chairs:  John A Hole, Virginia Tech, Blacksburg, VA, United States and Lindsay Lowe Worthington, University of New Mexico, Albuquerque, NM, United States
OSPA Liaison:  Basil Tikoff, Univ Wisconsin, Madison, United States
Co-Organized with:
Volcanology, Geochemistry and Petrology, Seismology, and Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

7205 Continental crust [SEISMOLOGY]
8108 Continental tectonics: compressional [TECTONOPHYSICS]
8110 Continental tectonics: general [TECTONOPHYSICS]
8499 General or miscellaneous [VOLCANOLOGY]

Abstracts Submitted to this Session:

Investigating the Spatial Extent of a Barely Prehistoric Earthquake on the Bear River Normal Fault, Wyoming and Utah (148624)
Suzanne Hecker1, David P Schwartz2, Francesca R Cinti3, Riccardo Civico4, Michael W West5, Alivia R Stoller6, Stephen DeLong6 and Alexandra Pickering6, (1)U.S. Geological Survey, Earthquake Science Center, Moffett Field, CA, United States, (2)dFAULTconsult, Danville, United States, (3)Istituto Nazionale di Geofisica e Vulcanologia, Palermo, Italy, (4)INGV National Institute of Geophysics and Volcanology, Sezione di Roma 1, Rome, Italy, (5)Michael West & Assoc, Inc., Englewood, CO, United States, (6)USGS, Menlo Park, CA, United States
Reprocessing COCORP Seismic Reflection Data to Image Deep Crustal Structure in the Wind River Mountains, Wyoming (190691)
Cate A Bressers1, Steven Michael Plescia2, Anne Sheehan3, Scott W Cook4 and Michael D Whitney4, (1)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, (2)University of Colorado at Boulder, Boulder, CO, United States, (3)University of Colorado Boulder, Department of Geological Sciences and Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, United States, (4)Tricon Geophysics, Denver, CO, United States
Insights into the Quaternary tectonics of the Yellowstone hotspot from a terrace record along the Hoback and Snake rivers. (170142)
Aaron Bufe, University of California Santa Barbara, Santa Barbara, CA, United States, Joel Lawrence Pederson, Utah State University, Department of Geosciences, Logan, UT, United States and Daphnee Tuzlak, Utah State University, Geology Department, Logan, UT, United States
Deciphering the Influence of Crustal Flexure and Shear Along the Margins of the Eastern Snake River Plain (183295)
Stuart Douglas Parker, University of Montana, Missoula, MT, United States
Two-phase Evolution of the Camas Prairie, Idaho Revealed by Active Seismic Methods (185929)
Mara Hartley Reed1, Lee M Liberty2, Dylan Mikesell3 and Thomas Branson Harper3, (1)University of Wisconsin Eau Claire, Eau Claire, WI, United States, (2)Boise State University, Geosciences, Boise, United States, (3)Boise State University, Geosciences, Boise, ID, United States
Regional Tectonic Evolution of the Pioneer Metamorphic Core Complex, South-Central Idaho (195227)
Rui LIU and Mary Leech, San Francisco State University, San Francisco, CA, United States
The Post-85 Ma Idaho Batholith Represents Melting in Thickened Continental Crust, Not Arc Magmatism (186965)
John A Hole1, Richard M Gaschnig2, Ad Byerly3, Kathy K Davenport1, Christian Stanciu4, Jeffrey D. Vervoort5, Annia K Fayon6, Basil Tikoff7, Raymond M Russo8 and David A Foster8, (1)Virginia Tech, Blacksburg, VA, United States, (2)University of Massachusetts Lowell, Lowell, MA, United States, (3)Univ Wisconsin, Madison, WI, United States, (4)Virginia Tech, Department of Geosciences, Blacksburg, United States, (5)Washington State University, School of the Environment, Pullman, WA, United States, (6)University of Minnesota Twin Cities, Department of Earth Sciences, Minneapolis, United States, (7)Univ Wisconsin, Madison, United States, (8)University of Florida, Ft Walton Beach, FL, United States
U-Pb Dating of Unabraded Detrital Zircon Metamorphic Rims in the Nanaimo Basin, British Columbia (194050)
Marie-Pier Boivin1, Bernard Guest1 and William Matthews2, (1)University of Calgary, Calgary, AB, Canada, (2)University of Calgary, Geoscience, Calgary, AB, Canada
“The Bridge” from Earthscope to EarthsCAN to Maintain North American Geoscience Momentum (163177)
Katherine Janet Elizabeth Boggs, Mount Royal University, Calgary, AB, Canada, Roy D Hyndman, Geological Survey of Canada Sidney, Sidney, BC, Canada and David W S Eaton, University of Calgary, Department of Earth, Energy, and Environment, Calgary, AB, Canada

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