T53A:
Mountain Building in Collisional and Cordilleran Orogenic Systems I


Submit an Abstract to this Session


Session ID#: 57164

Session Description:
Major global mountain belts are fundamentally linked to convergent plate margin processes. Though new multidisciplinary datasets continue to improve spatial and temporal reconstructions of orogenic systems, determining the geodynamic mechanisms influencing mountain building remains an outstanding challenge in tectonics. Orogenesis has traditionally been divided into end-member collisional or cordilleran styles based on convergent margin type. However, ongoing research reveals significant internal variability within collision and subduction zones, as well as important similarities in the structure and evolution of collisional and cordilleran orogenic systems.

This session seeks to bring together geological, geophysical, and geodynamic research from diverse orogenic environments to improve spatiotemporal models of convergent margin mountain building. We invite contributions from seismology, geodesy, geodynamic modeling, geo- and thermochronology, geochemistry, sedimentology, geomorphology, and structural geology that investigate orogenic structure, evolution, and potential driving mechanisms. We particularly encourage studies that combine multidisciplinary datasets, or compare datasets from collisional and cordilleran mountain belts.

Primary Convener:  Chelsea Mackaman-Lofland, University of Connecticut, Department of Geosciences, Storrs, United States
Conveners:  Jean-Baptiste Ammirati, University of Chile, Santiago, Chile, Magali Riesner, Institut de Physique du Globe de Paris, Paris, France and Dr. Robert W Porritt, PhD, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States; Sandia National Laboratories, Albuquerque, NM, United States
Primary Liaison:  Chelsea Mackaman-Lofland, University of Connecticut, Department of Geosciences, Storrs, United States
Chairs:  Chelsea Mackaman-Lofland, University of Connecticut, Department of Geosciences, Storrs, United States and Magali Riesner, Institut de Physique du Globe de Paris, Paris, France
OSPA Liaison:  Chelsea Mackaman-Lofland, University of Connecticut, Department of Geosciences, Storrs, United States

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
  • G - Geodesy
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

7230 Seismicity and tectonics [SEISMOLOGY]
8038 Regional crustal structure [STRUCTURAL GEOLOGY]
8104 Continental margins: convergent [TECTONOPHYSICS]
8175 Tectonics and landscape evolution [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Numerical modeling of the Laramide Orogeny: The roles of the Farallon flat slab and continental structure (412625)
Xiaowen Liu, University of Alberta, Edmonton, AB, Canada and Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada
Shortening and magmatism at the Eastern Cordillera of Colombia: Insights from teleseismic receiver functions and geochemistry (415933)
Gaspar Monsalve1, Juan Sebastián Jaramillo2, Agustin Cardona1, Vera Schulte-Pelkum3, Gustavo Posada1, Esteban Poveda4 and Victor Valencia5, (1)Universidad Nacional de Colombia, Facultad de Minas, Medellín, Colombia, (2)Universidad Nacional de Colombia, Departamento de Materiales y Minerales, Medellín, Colombia, (3)Univ Colorado Boulder, Boulder, United States, (4)Servicio Geológico Colombiano, Bogotá, Colombia, (5)University of Washington State, School of the Environment, Pullman, United States
The Peruvian Flat Slab Sag: Constraints from the Pucallpa Seismic Nest (435637)
Lara S Wagner, Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States and Emile Okal, Northwestern University, Department of Earth, Environmental, and Planetary Sciences, Evanston, United States
Differences Between Cordilleran Models and Real Margins: Impact of Structural Inheritance and Dynamic Topography on Basin Evolution in the Central Andes, Southern Peru (424233)
Nicholas Perez, Texas A&M University College Station, College Station, TX, United States
Thrust belt response to rapid surface uplift and implications for Cordilleran cyclicity in the central Andes (414029)
Ryan Bruce Anderson1, Sean P Long1, Brian K Horton2, Stuart N Thomson3, Amanda Calle4 and Daniel F Stockli5, (1)Washington State University, School of the Environment, Pullman, WA, United States, (2)Univ of Texas at Austin, Austin, United States, (3)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (4)Univ of Texas at Austin, Austin, TX, United States, (5)University of Texas at Austin, Department of Earth and Planetary Sciences, Austin, United States
Cordilleran evolution along western South America recorded by detrital zircon U-Pb and Hf isotopes in the southern Central Andes (411888)
Tomas Capaldi, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, N Ryan McKenzie, University of Hong Kong, Hong Kong, China, Brian K Horton, Univ of Texas at Austin, Austin, United States; University of Texas at Austin, Institute for Geophysics and Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States, Daniel F Stockli, University of Texas at Austin, Department of Earth and Planetary Sciences, Austin, United States and Chelsea Mackaman-Lofland, University of Connecticut, Department of Geosciences, Storrs, United States
Are cordilleran or collisional orogens really distinct? New views from a quantitative re-evaluation of mountain-building in the Central Andes. (Invited) (355776)
Martine Simoes1, Magali Riesner1, Robin Lacassin1, Daniel Carrizo2, Tania Habel1 and Rolando Armijo1, (1)Institut de Physique du Globe de Paris, Paris, France, (2)University of Chile, Advanced Mining Technology Center, Department of Geology, Santiago, Chile

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