T11A:
Active Tectonics and Magmatism of Alaska, the Aleutians, and Northwest Canada Posters

Session ID#: 3549

Monday, 15 December 2014: 8:00 AM-12:20 PM
Poster Hall (Moscone_South)
Chairs:  Sean P S Gulick, The University of Texas at Austin, Institute for Geophysics & Department of Geological Sciences, Austin, United States, Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States and Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States
Primary Convener:  Sean P S Gulick, University of Texas, Institute for Geophysics, Austin, United States
Co-conveners:  Robert J Stern, University of Texas at Dallas, Geosciences, Richardson, TX, United States, John M Jaeger, University of Florida, Geological Sciences, Ft Walton Beach, FL, United States and Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States
OSPA Liaison:  John M Jaeger, University of Florida, Ft Walton Beach, FL, United States
Co-Sponsor(s):
  • G - Geodesy
  • NH - Natural Hazards
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

8111 Continental tectonics: strike-slip and transform [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]
8175 Tectonics and landscape evolution [TECTONOPHYSICS]
8185 Volcanic arcs [TECTONOPHYSICS]
Virtual Option?: No

Abstracts Submitted to this Session:

 
T11A-4524
Crustal And Lithospheric Thickness Variation Across Alaska In Advance Of Earthscope Transportable Array (17437)
Leland O'Driscoll and M Meghan Miller, University of Southern California, Los Angeles, CA, United States
 
T11A-4525
EarthScope’s Plate Boundary Observatory in Alaska: Building on Existing Infrastructure to Provide a Platform for Integrated Research and Hazard-monitoring Efforts (20976)
Eleanor S Boyce1, Ryan M Bierma1, Heidi Willoughby1, Karl Feaux2, Glen S Mattioli3,4, Max Enders5 and Robert W Busby6, (1)UNAVCO, Inc. Anchorage, Anchorage, AK, United States, (2)UNAVCO, Inc. Boulder, Boulder, CO, United States, (3)University of Texas at Arlington, Arlington, United States, (4)UNAVCO, Inc., Boulder, CO, United States, (5)IRIS, Anchorage, AK, United States, (6)IRIS, Washington, DC, United States
 
T11A-4526
Earthquake Hazard and Risk in Alaska (26442)
Natanya Black Porto and Marleen Nyst, Risk Management Solutions, Inc., Newark, CA, United States
 
T11A-4527
Seismic Velocity and Thickness of Sediments Beneath the Aleutian Basin, Bering Sea (18107)
Daniel S Scheirer1, Ginger A Barth2, Ray W Sliter3, Patrick E Hart3 and Jonathan R Childs4, (1)USGS, GMEG Science Center, Baltimore, MD, United States, (2)USGS, PCM Science Center, Menlo Park, CA, United States, (3)Pacific Coastal and Marine Science Center Santa Cruz, Santa Cruz, CA, United States, (4)USGS, PCM Science Center, Baltimore, MD, United States
 
T11A-4528
In Situ Stress Variations Associated with Regional Changes in Tectonic Setting, northeastern Brooks Range and eastern North Slope of Alaska (31325)
Catherine L Hanks, Nilesh C Dixit and Wesley K Wallace, University of Alaska Fairbanks, Department of Geosciences and Geophysical Institute, Fairbanks, AK, United States
 
T11A-4529
Tectono-thermal History of the Southern Nenana Basin, Interior Alaska: Implications for Conventional and Unconventional Hydrocarbon Exploration (18346)
Nilesh C Dixit, University of Alaska Fairbanks, Department of Geosciences and Geophysical Institute, Fairbanks, AK, United States and Catherine L Hanks, University of Alaska Fairbanks, Department of Geosciences - Geology, Geophysics and Geography, Fairbanks, AK, United States
 
T11A-4531
Roles of magmatic oxygen fugacity and water content in generating signatures of continental crust in the Alaska-Aleutian arc (17750)
Katherine A Kelley1, Elizabeth Cottrell2, Maryjo N Brounce1,3 and Zoe Gentes1, (1)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (2)Smithsonian, NMNH, Department of Mineral Sciences, Washington, DC, United States, (3)Smithsonian, NMNH, Washington, DC, United States
 
T11A-4532
Geochemistry and Age of Magmatic Rocks on Rat Island in the Aleutian Forearc at the Junction of the Aleutian Arc with the Bowers Ridge (23105)
Ashley K Tibbetts1, Suzanne Mahlburg Kay1, Brian R Jicha2 and William M White3, (1)Cornell University, Ithaca, NY, United States, (2)University of Wisconsin-Madison, Department of Geoscience, Madison, United States, (3)Cornell Univ, Ithaca, NY, United States
 
T11A-4533
Petrogenesis of Mafic and Ultramafic Enclaves from the Central Aleutian Arc, and Implications for the Formation of New Crust (30705)
Elisabeth S Nadin1, Adrienne E Kentner1, Christopher J Nye2 and Pavel E Izbekov3, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States, (3)Alaska Volcano Observatory, Fairbanks, AK, United States
 
T11A-4534
The Rupture Process of the 2014 Rat Island Intermediate-Depth Earthquake with Relation to the Geodynamical Context of the Western Aleutian Arc (26210)
Cedric Twardzik, Chen Ji and Ralph J Archuleta, University of California Santa Barbara, Santa Barbara, CA, United States
 
T11A-4535
Downdip and along-strike variations in the properties of the Alaska megathrust from active-source seismic imaging (Invited) (19483)
Donna J Shillington1, Anne Becel2, Mladen R Nedimovic3, Jiyao Li4, Harold Kuehn5, Spahr C Webb2, Geoffrey A Abers6, Katie M Keranen7 and Demian M Saffer8, (1)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Dalhousie University, Department of Earth and Environmental Sciences, Halifax, NS, Canada, (4)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (5)Dalhousie University, Halifax, NS, Canada, (6)Cornell University, Ithaca, NY, United States, (7)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (8)Pennsylvania State University, University Park, United States
 
T11A-4536
Seismic imaging constraints on megathrust fault zone properties (19512)
Geoffrey A Abers1, Helen A Janiszewski2, Katie M Keranen1, Demian M Saffer3 and Donna J Shillington4, (1)Cornell University, Ithaca, NY, United States, (2)Columbia University of New York, Palisades, NY, United States, (3)Pennsylvania State University, University Park, United States, (4)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States
 
T11A-4537
Shallow velocity structure of the Alaska Peninsula subduction zone and implications for controls on seismic behavior (30631)
Jiyao Li1, Donna J Shillington2, Anne Becel3, Mladen R Nedimovic4, Harold Kuehn5, Spahr C Webb3, Geoffrey A Abers6, Katie M Keranen7 and Demian M Saffer8, (1)Columbia University of New York, Palisades, NY, United States, (2)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States, (3)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (4)Dalhousie University, Department of Earth and Environmental Sciences, Halifax, NS, Canada, (5)Dalhousie University, Halifax, NS, Canada, (6)Cornell University, Ithaca, NY, United States, (7)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States, (8)Pennsylvania State University, University Park, United States
 
T11A-4538
Diverse Approaches USED to Characterize the Earthquake and Tsunami Hazards Along the Southern Alaska Continental Margin (9864)
Peter J Haeussler1, Robert Carleton Witter1, Lee M Liberty2, Daniel S Brothers3, Richard W Briggs4, Phillip A Armstrong5, Jeffrey Todd Freymueller6, Tom Parsons7, Holly F Ryan8, Homa J Lee8 and Emily C Roland9, (1)USGS Alaska Science Center, Anchorage, AK, United States, (2)Boise State Univ, Boise, United States, (3)USGS Pacific Coastal and Marine Science Center, Santa Cruz, United States, (4)USGS Geologic Hazards Science Center, Golden, United States, (5)California St Univ Fullerton, Fullerton, CA, United States, (6)Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, (7)USGS California Water Science Center Menlo Park, Menlo Park, CA, United States, (8)USGS, Menlo Park, CA, United States, (9)Western Washington University, Geoloy and Marine and Coastal Sciences, Bellingham, WA, United States
 
T11A-4539
Tidal Triggering of Earthquakes in the Alaska-Aleutian Subduction Zone (22230)
Yen Joe Tan and Maya Tolstoy, University of Washington, College of the Environment, Seattle, United States
 
T11A-4540
Deciphering the Transitional Tectonics of the Southern Alaska Margin Through Gulf Sedimentology and Geophysics: IODP Expedition 341 (Invited) (19105)
Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States, Sean P S Gulick, The University of Texas at Austin, Institute for Geophysics, Austin, United States, John M Jaeger, University of Florida, Ft Walton Beach, FL, United States and IODP Expedition 341 Science Party
 
T11A-4541
Physical properties of southern Alaska margin sediments in the context of global convergent margins (16192)
Hugh Daigle, University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States, Olivia Piña, The Ohio State University, Department of Civil, Environmental and Geodetic Engineering, Columbus, OH, United States, Elizabeth Screaton, Univ Florida, Gainesville, FL, United States, Stephanie R James, University of Florida, Ft Walton Beach, United States and IODP Expedition 341 Scientists
 
T11A-4542
The Current Tectonics of the Yukon and Adjacent Area (4013)
Roy D Hyndman, Geological Survey of Canada Sidney, Sidney, BC, Canada and Lucinda J Leonard, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
 
T11A-4543
Present-Day Strain Transfer Across the Yakutat Collision in SW Yukon – SE Alaska: The Death of the Southern Denali Fault? (10166)
Anaïs Marechal1, Stephane Mazzotti2, Jean-Francois Ritz1, Matthieu Alexis Ferry1 and Jeffrey Todd Freymueller3, (1)Universite Montpellier 2, Montpellier Cedex 05, France, (2)Géosciences Montpellier, Montpellier Cedex 05, France, (3)Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States
 
T11A-4544
Updated mapping and seismic reflection data processing along the Queen Charlotte fault system, southeast Alaska (18208)
Maureen A L Walton, US Naval Research Laboratory, Ocean Sciences Divison, Washington, DC, United States, Sean P S Gulick, The University of Texas at Austin, Institute for Geophysics, Austin, United States, Peter J Haeussler, USGS Alaska Science Center, Anchorage, AK, United States, Kristin Rohr, Kristin Rohr Consulting, Victoria, BC, Canada, Emily C Roland, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States and Anne M Trehu, Oregon State University, CEOAS, Corvallis, United States
 
T11A-4545
Aftershock source properties of events following the 2013 Craig Earthquake: new evidence for structural heterogeneity on the northern Queen Charlotte Fault (26339)
Emily C Roland, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, Maureen A L Walton, US Naval Research Laboratory, Ocean Sciences Divison, Washington, DC, United States, Natalia A Ruppert, US Geological Survey, Earthquake Science Center, Seattle, United States, Sean P S Gulick, The University of Texas at Austin, Institute for Geophysics, Austin, United States, Gail Lynn Christeson, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States and Peter J Haeussler, USGS Alaska Science Center, Anchorage, AK, United States
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