Arcs from the Inside Out II

Wednesday, 17 December 2014: 10:20 AM-12:20 PM
Chairs:  Richard M Gaschnig, University of Maryland College Park, Department of Geology, College Park, MD, United States and Jonathan S Miller, San Jose State University, San Jose, CA, United States
Primary Conveners:  Terry A Plank, Lamont Doherty Earth Obs., Palisades, NY, United States
Co-conveners:  Richard M Gaschnig, University of Maryland College Park, Department of Geology, College Park, MD, United States
OSPA Liaisons:  Esteban Gazel, Virginia Tech, Blacksburg, VA, United States

Abstracts Submitted to this Session:

10:20 AM
The link between collisional tectonics and arc magmatism in the Paleozoic Famatina arc, Argentina
Sean R Mulcahy, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States, Sarah Roeske, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States and William McClelland, University of Iowa, Department of Earth and Environmental Sciences, Iowa City, IA, United States
10:35 AM
Rapid Rejuvenation of the Source of a Backarc Sheeted Magmatic Complex (Torres del Paine, Patagonia): Evidence From Hf isotopes in Zircon
Tanya A Ewing1, Othmar Muntener1, Julien Leuthold1,2, Massimo Chiaradia3, Lukas P Baumgartner1 and Benita Putlitz1, (1)University of Lausanne, Lausanne, Switzerland, (2)University of Bristol, Bristol, United Kingdom, (3)University of Geneva, Geneva, Switzerland
10:50 AM
Reconstruction of Late Cretaceous Magmatic Arcs in the Northern Andes: Single Versus Multiple Arc Systems
Agustin Cardona1, Juan Sebastián Jaramillo1, Santiago Leon1, Santiago Hincapie1, Dany Mejia1, Ana Maria Patino1, Jakeline Vanegas1, Sebastian Zapata1,2, Victor Valencia3, Giovanny Jimenez4 and Gaspar Monsalve1, (1)Universidad Nacional de Colombia, Facultad de Minas, Medellín, Colombia, (2)Corporación Geológica Ares, Bogotá, Colombia, (3)University of Washington State, School of Earth and Environmental Sciences, Pullman, WA, United States, (4)Universidad Industrial de Santander, Bucaramanga, Colombia
11:05 AM
Dextral strike-slip tectonism and arc processes in the Sierra Nevada and Idaho batholiths
Basil Tikoff1, Ad Byerly1, Richard M Gaschnig2, Jeffrey D. Vervoort3 and Paul Robert Kelso4, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Maryland College Park, Department of Geology, College Park, MD, United States, (3)Washington State University, Pullman, WA, United States, (4)Lake Superior State University Sault Saint Marie, Physical Sciences, Sault Saint Marie, MI, United States
11:20 AM
Oxygen Isotope Trajectories of Crystallizing Arc Magmas
Claire E Bucholz1, Oliver E Jagoutz1, Jill A VanTongeren2 and Zhengrong Wang3, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Rutgers University New Brunswick, New Brunswick, NJ, United States, (3)Yale University, Geology and Geophysics, New Haven, CT, United States
11:35 AM
Magmatic responses to Late Cretaceous through Oligocene tectonic evolution of the western Alaska Range
Erin Todd1, James V Jones III1, Susan Karl1, Robert A Ayuso2, Dwight C Bradley1, Stephen E Box3 and Peter J Haeussler1, (1)USGS Alaska Science Center, Anchorage, AK, United States, (2)USGS, Reston, VA, United States, (3)US Geological Survey, Spokane, WA, United States
11:50 AM
Effect of Aseismic Ridge Subduction on Volcanism in the NE Lesser Antilles Arc
Adam J Stinton, Montserrat Volcano Observatory, Flemmings, Montserrat, Robert G Hatfield, Oregon State University, Corvallis, OR, United States and Molly C McCanta, Tufts University, Medford, MA, United States
12:05 PM
Bubble-crystal aggregates promote magma chamber overturn in arc crust
Marie Edmonds1, Andrew W Woods1 and Madeleine Humphreys2, (1)University of Cambridge, Cambridge, United Kingdom, (2)University of Durham, Durham, United Kingdom