Primary Conveners: Barbara Carrapa, University of Arizona, Geosciences, Tucson, AZ, United States
Conveners: Brian K Horton, University of Texas at Austin, Department of Geological Sciences and Institute for Geophysics, Austin, TX, United States and Thorsten W Becker, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Chairs: Barbara Carrapa, University of Arizona, Geosciences, Tucson, AZ, United States and Brian K Horton, University of Texas at Austin, Department of Geological Sciences and Institute for Geophysics, Austin, TX, United States
OSPA Liaisons: Brian K Horton, University of Texas at Austin, Department of Geological Sciences and Institute for Geophysics, Austin, TX, United States
16:00
Upper-crustal Stress Field Variations During the Building of the Central Andes: Constrains on the Activation/deactivation of Megadetachments (Invited) (62675)
Laura Giambiagi1, Andres Tassara2, José Mescua1, Julieta Suriano3, J Brian Mahoney4, Gregory D Hoke5, Silvana Liz Spagnotto6, Ana Clara Lossada7, Diego Mardónez1, Manuela Mazzitelli1 and Matías Barrionuevo1, (1)Argentine Nacional Science and Technology Council CONICET, IANIGLA, Mendoza, Argentina, (2)University of Concepcion, Concepcion, Chile, (3)Universidad de Buenos Aires, Ciencias Geológicas, Buenos Aires, Argentina, (4)University of Wisconsin Eau Claire, Eau Claire, WI, United States, (5)Syracuse University, Syracuse, NY, United States, (6)Universidad Nacional de San Luis, Villa Mercedes, Argentina, (7)International Council for Science, Paris, France
16:15
Revisiting mountain-building in the Andes of Central Chile: constraints from structural geology and thermochronology. (72559)
Magali Riesner1, Robin Lacassin1, Martine Simoes2, Rolando Armijo1 and Daniel Carrizo3, (1)Institut de Physique du Globe de Paris, Paris, France, (2)IPGP, CNRS UMR 7154, Paris Cedex, France, (3)University of Chile, Advanced Mining Technology Center, Department of Geology, Santiago, Chile
17:00
Marked spatial gradient in the topographic evolution of the Andes spanning the Chilean flat-slab transition: evidence from stable isotope paleoaltimetry and zircon double dating (86361)
Gregory D Hoke, Syracuse University, Earth Sciences, Syracuse, NY, United States, Devin F McPhillips, Syracuse University, Syracuse, NY, United States, Laura Giambiagi, International Council for Science, Paris, France, Carmala N Garzione, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, J Brian Mahoney, Univ Wisconsin, Eau Claire, WI, United States and Manfred R Strecker, University of Potsdam, Potsdam, Germany
17:15
Detrital provenance constraints from the Austral (Magallanes) Basin on dynamic changes in orogenic paleogeography during Cenozoic growth and denudation of the Patagonian Andes (Invited) (59661)
Julie C Fosdick1, Joel S Leonard1, J Enrique Bostelmann2, Raúl Ugalde3 and Theresa Schwartz4, (1)Indiana University Bloomington, Bloomington, IN, United States, (2)Universidad Austral de Chile, Escuela de Geología, Facultad de Ciencias, Valdivia, Chile, (3)Universidad de la República, 3PEDECIBA Geociencias, Facultad de Ciencias, Montevideo, Uruguay, (4)Allegheny College, Geology, Meadville, PA, United States
