T016:
Geochemical Evolution of Convergent Margins from Asthenosphere to Atmosphere





Session ID#: 21897

Session Description:
The importance of links between processes in the mantle, crust, hydrosphere, and atmosphere at convergent margins is increasingly clear, but the mechanisms, timescales, and even directionality of these connections remain poorly understood. These interactions influence the growth, recycling, and destruction of the lithosphere; induce rapid shifts in surface elevation and produce high topography that can affect atmospheric circulation; and drive feedbacks between precipitation, rock deformation, uplift, basin development, landscape evolution, and biologic change. Furthermore, convergent margins generate the planet’s largest earthquakes and modulate greenhouse-gas budgets via volcanism and chemical weathering. In this session, we aim to bridge temporal, spatial, and disciplinary gaps between geochemical studies of Andean-type margins. We invite contributions that place the geochemistry of modern and ancient convergent margins within the context of these interactions. We particularly welcome multi-method approaches that include geochronology, thermochronology, cosmogenic nuclide-dating, stable isotope measurements, leaf-wax lipid-biomarkers, or other biological proxies.
Primary Convener:  Kendra E Murray, University of Michigan Ann Arbor, Ann Arbor, MI, United States
Conveners:  Alexander Rohrmann, Oregon State University, Corvallis, OR, United States and Mauricio Ibanez-Mejia, University of Rochester, Rochester, NY, United States
Co-Organized with:
Tectonophysics, and Volcanology, Geochemistry and Petrology

Cross-Listed:
  • B - Biogeosciences
  • EP - Earth and Planetary Surface Processes
  • V - Volcanology, Geochemistry and Petrology

Abstracts Submitted to this Session:

Elias Morgan Bloch1, Mauricio Ibanez-Mejia2, Jeffrey D. Vervoort3, Othmar Müntener1 and Kendra Murray4, (1)University of Lausanne, Lausanne, Switzerland, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)Washington State University, Pullman, WA, United States, (4)University of Michigan, Ann Arbor, United States
Federico Galster1, Rudra N Chatterjee1 and Daniel F Stockli2, (1)University of Texas at Austin, Austin, TX, United States, (2)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States
Maria Catharina Hoorn1, Giovanni Bogota-Angel2, Millerlandy Romero-Baez3, Emmy Lammertsma1, Suzette G.A. Flantua1, Elton Luiz Dantas4, Rodolfo Dino5, Dermeval do Carmo4 and Farid Chemale Jr.6, (1)University of Amsterdam, Institute for Biodiversity and Ecosystem Dynamics, Amsterdam, Netherlands, (2)Universidad Distrital Francisco José de Caldas, Bogota, Colombia, (3)Smithsonian Tropical Research Institute, Panama, Panama, (4)Universidade de Brasília, Brasilia, Brazil, (5)University of the State of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil, (6)Universidade do Vale do Rio dos Sinos, Sao Leopoldo, Brazil
Derry Ray Xu1, Emily White2, Elizabeth J. Cassel2, Brigid Lynch3, Brian Yanites4 and Dan Breecker5, (1)University of Texas at Austin, Austin, TX, United States, (2)University of Idaho, Moscow, ID, United States, (3)Indiana University Bloomington, Bloomington, IN, United States, (4)Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States, (5)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States
Lu Zhang and Changhai Xu, Tongji University, Shanghai, China
Hidehisa Mashima, Meiji University, Center for Obsidian and Lithic Studies, Kawasaki, Japan
Peter Dominic Clift, Louisiana State University, Geology and Geophysics, Baton Rouge, LA, United States
Cin-Ty Lee1, Hehe Jiang1, Laura Carter1, Rajdeep Dasgupta2, Wenrong Cao3, Jade Star Lackey4, Adrian Lenardic5, Jaime Barnes6 and Ryan McKenzie7, (1)Rice University, Houston, TX, United States, (2)Rice University, Department of Earth, Environmental, and Planetary Sciences, Houston, TX, United States, (3)University of Nevada, Reno, United States, (4)Pomona College, Claremont, CA, United States, (5)Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States, (6)University of Texas at Austin, Austin, TX, United States, (7)University of Hong Kong, Department of Earth Sciences, Hong Kong, Hong Kong
David J Auerbach1, Mark T Brandon2, Michael T Hren3, Jeremy K Hourigan4, Astrid Pacini5, Martha Cosgrove1, Maya Midzik1, Rene Garreaud6 and Christine Anne Metzger7, (1)Yale University, Geology & Geophysics, New Haven, CT, United States, (2)Yale University, Geology and Geophysics, New Haven, CT, United States, (3)University of Connecticut, Center for Integrative Geosciences, Storrs, CT, United States, (4)UC Santa Cruz, Santa Cruz, CA, United States, (5)Massachusetts Institute of Technology, Cambridge, MA, United States, (6)University of Chile, Santiago, CHILE, (7)California College of the Arts, San Francisco, CA, United States

See more of: Tectonophysics