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Events: Details

2020 Tectonics Community Science Workshop

Agenda

as of 26 July 2020.

Times listed are PDT (GMT -7). time zone converter

Workshop playlist [YouTube]


Monday July 27

Session 1: Meeting Introduction 
  07:00 Welcome
  07:10 Keynotes
  • Strain Localization: The Rock Record. Marco Herwegh, University of Bern [YouTube]
  • Strain Localization in the Lithosphere: The Current Knowledge and Ties from Experiment. Miki Tasaka, Shimane University [YouTube]
  • Strain localization in lithosphere dynamics modelsThibault Duretz, University of Rennes [YouTube]
  • Connections Between Scales. Andréa Tommasi, University of Montpelier [YouTube]
  08:20  Break
  08:30 Group Discussions (breakouts)

What are the outstanding questions and challenges from the following perspectives?

  • Group 1 - Observational: Whitney Behr, ETH Zurich; Djordje Grujic, Dalhousie U.; Sarah Roeske, UC Davis
  • Group 2 - Experimental: Greg Hirth, Brown U.;  Phil Skemer, Washington U. St. Louis; Mark Behn, Boston U.
  • Group 3 - Numerical: Jean-Arthur Olive, CNRS; Anne Glerum, GFZ Potsdam; John Naliboff, UC Davis
  09:00 Group Discussions Report Back
  09:30 End of Day 1
  09:45 Community Presentations 1 (10 min each)
  • Alexander Lusk, Polyphase ultramylonite development during shear zone evolution
  • Keith Kleipis, Shear zone evolution by depth in the continental lithosphere, SW New Zealand
  • Drew Levy, Deformed Apatite Dates Deformation: Investigating the effect of crystal plastic deformation on U-Pb systematics
  • Soeren Tholen, Phase-dependent recrystallization and its impact on mixing
  • Sarah Jaye Oliva, State-of-stress and stress rotations: Quantifying the role of surface topography and subsurface density contrasts in magmatic rift zones (Eastern Rift, Africa)
  • Chao Liang, Deep ductile shear localization facilitates near-orthogonal strike-slip faulting in a thin brittle lithosphere
  10:45 End of Day 1 Poster Presentations

Tuesday July 28

Session 2: Localization in the lithosphere 
  07:00 Welcome
  07:05 Keynote: Constraints from the Rock Record on Shear Localization at Oceanic Transform Faults. Jessica Warren, University of Delaware [YouTube]
  07:35 Keynote: A Dislocation And A Grain Boundary Walk Into A Bar… or On The Microphysics Of Lithospheric Deformation. Elvira Mulyukova, Yale University [YouTube]
  08:05  Break
  08:30 Group Discussions (breakouts)
  • Group 1  - The importance of the interaction of chemical and physical processes and rock heterogeneity? Knowledge from the rock record and experiments? Chris Gerbi, U. of Maine; Anna Rogowitz, U.of Vienna; Sarah Roeske, UC Davis
  • Group 2 - What are the main processes involved, are they providing positive or negative feedbacks, which ones are most important at which scenario? Do we know their feedback roots? Zoe Braden, ETH Zürich; Andy Cross, WHOI; Susanne Buiter, Aachen U.
  • Group 3 - Importance of rock heterogeneity and anisotropy? What are the magnitudes and timescale of weakening expected through different processes, "saturation points"? Ake Fagereng, Cardiff U.; Keith Klepeis, U. of Vermont; Sandra Piazolo, U. of Leeds
  09:00 Group Discussions Report Back
  09:30 End of Day 2
  09:45  Community Presentations 2 (10 min each)
  • Yiduo Liu, Role of erosion in creating thrust recesses in a critical wedge: An example from eastern Tibet
  • Garrett Apuzen-Ito, Widths of Imbricate Thrust Blocks and the Strength of the Front of Accretionary Wedges and Fold-and-Thrust Belts
  • Maria-Gema Llorens, Insights into seismic anisotropy of temperate ice during simple shear deformation
  • Jean-Arthur Olive, Zooming in on distributed brittle deformation across the Rio Grande rift shoulder
  • Ben Knight, Strain localization in the crust: the influence of viscoplastic rheology
  • Dan Sandiford, Hanging wall deformation in the Western Rift
  • Mary Hubbard, Cross Faults and Their Role in Himalayan Tectonics
  10:55 End of Day 2 Poster Presentations

Wednesday July 29

Session 3: Evolution and transient behavior of lithospheric shear zones
  07:00 Welcome
  07:05 Keynote: Evolution and Transient Behaviour of New Zealand's Alpine Fault Zone. Virginia Toy, Johannes Gutenberg-Universität Mainz [YouTube]
  07:35 Keynote: Linking Geophysical and Geological Observations to Understand the Structures, Materials and Environment of Deep Episodic Tremor and Slow Slip. Whitney Behr, ETH Zurich [YouTube]
  08:05  Break
  08:30 Group Discussions (breakouts)
  • Group 1 - Deformation across the brittle-ductile transition through the seismic cycle.  Tim Wright, U. of Leeds; Michelle Cooke, U. of Mass.; David Bercovici, Yale U.
  • Group 2 - Processes controlling delocalization. Thibault Duretz, U. De Rennes; Claire Currie, U. of Alberta; John Naliboff; UC Davis
  • Group 3 - Evolution of shear zones across different spatial and temporal scales. Elvira Mulyukova, Yale U.; Keith Klepeis, U. of Vermont; Susanne Buiter, Aachen U./Jolante van Wijk, New Mexico Tech
  09:00 Group Discussions Report Back
  09:30 End of Day 3
  09:45  Community Presentations 3 (10 min each)
  • Tamara de Riese, Influence of initial preferred orientations on strain localization in non-linear viscous anisotropic materials
  • Thomas Morrow, A More Responsive M: Dike Injection via Diffuse Yielding in 2-D Rift Models
  • Lindsey Kenyon, Modeling the Effects of Oblique Subduction on Mantle Wedge Seismic Anisotropy
  • Scott Johnson. Chris Gerbi presenting, Microscale stress heterogeneities: Mechanical, rheological, and mineralogical impact
  • He Feng, Rheological Bridge Zone - The Initialization of Localization
  • Djordje Grujic, Strength Profile Across a Continental-Scale Shear Zone
  10:45 End of Day 3 Poster Presentations

Thursday July 30

Session 4:  How to make a plate boundary - from microphysical and chemical processes to geodynamic scenarios
  07:00 Welcome
  07:05 Keynote: Strength of Plate Interiors and Plate Boundaries. Laurent Montesi, University of Maryland [YouTube]
  07:35 Keynote: Are non associative flow limited to brittle strain localisation processes? Laetitia Le Pourhiet, Insitut des Sciences de la Terre de Paris [YouTube]
  08:05  Break
  08:30 Group Discussions (breakouts)
  • Group 1 - Identifying first order effects. Cindy Ebinger, Tulane U.; Jeroen van Hunen, Durham, U.; Jolante van Wijk, New Mexico Tech
  • Group 2 - Numerical possibilities. Marcel Thielmann, U. of Bayreuth; Anne Glerum, GFZ Potsdam;  Mark Behn, Boston College
  • Group 3 - Lessons learned from previous approaches. Garrett Ito, U. of Hawaii, Manoa; Andrea Tommasi, U. of Montpellier; Sandra Piazolo, U. of Leeds 
  09:00 Group Discussions Report Back
  09:30 Break
  10:00 Community Discussion - Next Steps
  11:00 End of Workshop
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