Chairs: Lara S Wagner, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States and Suzanne Mahlburg Kay, Cornell University, Ithaca, NY, United States
Primary Convener: Megan L Anderson, Washington Department of Natural Resources, Olympia, United States
Co-conveners: Lara S Wagner, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States and Suzanne Mahlburg Kay, Cornell University, Ithaca, NY, United States
OSPA Liaison: Megan L Anderson, Washington Department of Natural Resources, Olympia, United States
Tomographic imaging of the effects of Peruvian flat slab subduction on the Nazca slab and surrounding mantle under central and southern Peru (18419)
Alissa C Scire1, George Zandt1, Susan L Beck2, Brandon Bishop3, Cemal B Biryol4, Lara S Wagner5, Maureen D Long6, Estela Minaya7 and Hernando Tavera8, (1)University of Arizona, Tucson, AZ, United States, (2)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (3)University of Arizona, Tucson, United States, (4)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (5)Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, (6)Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, (7)Observatorio San Calixto, La Paz, Bolivia, (8)Instituto Geofísico del Perú, Lima, Peru
Mantle Flow associated with the Peruvian Flat Slab and Subducting Nazca Ridge as inferred from Seismic Anisotropy (22992)
Caroline M Eakin, Australian National University, Canberra, ACT, Australia, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, Lara S Wagner, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, Susan L Beck, University of Arizona, Department of Geosciences, Tucson, AZ, United States, Hernando Tavera, Instituto Geofísico del Perú, Lima, Peru and Cristóbal Condori, 1Universidad Nacional de San Agustín, UNSA, Lima, Peru
Peruvian Trench to Andean Thrust Front: Evidence for Coupling of the Peruvian Flat Slab to the Over-Riding South American Plate (24620)
Brandon Bishop1, Susan L Beck2, George Zandt3, Alissa C Scire3, Lara S Wagner4, Maureen D Long5 and Hernando Tavera6, (1)University of Arizona, Tucson, United States, (2)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (3)University of Arizona, Tucson, AZ, United States, (4)Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, (5)Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, (6)Instituto Geofísico del Perú, Lima, Peru
A lithospheric velocity model for the flat slab region of Argentina from joint inversion of Rayleigh-wave dispersion and teleseismic receiver functions (13220)
Jean-Baptiste Ammirati1,2, Patricia M Alvarado2,3 and Susan L Beck4, (1)University of Chile, Santiago, Chile, (2)CONICET, CIGEOBIO, Buenos Aires, Argentina, (3)National University of San Juan, Geophysics and Astronomy, San Juan, Argentina, (4)University of Arizona, Department of Geosciences, Tucson, AZ, United States
Investigating Mechanisms of South American Flat Subduction (14006)
Jiashun Hu, University of Illinois at Urbana Champaign, Urbana, IL, United States, Armando Hermosillo, University of Illinois at Urbana-Champaign, Champaign, IL, United States and Lijun Liu, University of Illinois at Urbana-Champaign, Department of Earth Science and Environmental Change, Urbana, United States
Lithosphere-Mantle Interactions Associated with Flat-Slab Subduction (27843)
Melanie Gerault, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, Thorsten W Becker, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, Laurent Husson, Université Grenoble Alpes, ISTerre, Grenoble, France and Eugene Humphreys, Univ Oregon, Eugene, OR, United States
Interaction Between Magmatism and Continental Extension, Insight From an Extensional Terrain in the Iranian Plateau (31567)
Ahmadreza Malekpour Alamdari, New Mexico Institute of Mining and Technology, Socorro, NM, United States, Gary J Axen, New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, NM, United States and Jamshid Hassanzadeh, California Institute of Technology, Pasadena, CA, United States
Recurring Swarms of Deep Long Period Earthquakes in the Denali Volcanic Gap Suggest a Continuation of Volcanic Processes in the Absence of Active Volcanism (27382)
Stephen G Holtkamp1, Natalia A Ruppert2, Vipul Silwal3, Douglas H Christensen3 and Christopher J Nye4, (1)University of Alaska Fairbanks, Alaska Earthquake Center, Fairbanks, AK, United States, (2)US Geological Survey, Earthquake Science Center, Seattle, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States
Contrasting lithospheres: does one size fit all for the structure of mantle under foreland arches? (12926)
Megan L Anderson, Washington Department of Natural Resources, Olympia, United States, Ryan C Porter, Northern Arizona University, Flagstaff, AZ, United States, William L Yeck, University of Colorado, Boulder, CO, United States, Anne Sheehan, University of Colorado Boulder, Department of Geological Sciences and Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, United States, Susan L Beck, University of Arizona, Department of Geosciences, Tucson, AZ, United States and Hersh J Gilbert, University of Calgary, Department of Geoscience, Calgary, AB, Canada
Eocene lake basins in Wyoming and Nevada record rollback of the Farallon flat-slab beneath western North America (19672)
Michael Elliot Smith1, Elizabeth J. Cassel2, Brian R Jicha3, Brad S Singer3 and Alan R Carroll4, (1)Northern Arizona University, Flagstaff, United States, (2)University of Idaho, Earth and Spatial Sciences, Moscow, United States, (3)University of Wisconsin-Madison, Department of Geoscience, Madison, United States, (4)University of Wisconsin Madison, Madison, WI, United States
Are Colorado Plateau Eclogite Xenoliths Franciscan?: Oxygen Isotope Evidence From Zoned Garnet (20269)
William Floyd Hoover1, F. Zeb Page1, Daniel J Schulze2, Kouki Kitajima3 and John W Valley4, (1)Oberlin College, Oberlin, OH, United States, (2)University of Toronto, Toronto, ON, Canada, (3)University of Wisconsin, Department of Geoscience, Madison, United States, (4)Univ Wisconsin Madison, Madison, United States
