 |
 |
Dear all,
Apology for interrupting a very fascinating debate ...
________________________________
GSA Session T22: Deformation of the Lithosphere: Field Observations,
Experimental Investigations and Numerical Studies.
Co-conveners: Patrice Rey, Eric Goergen, Seth Kruckenberg
NB: Co-sponsored by the GSA’s Structural Geology and Tectonics Division and GSA’s Geophysics Division, this session will host the 2011 GSA Keynote Lecturer. This session links to GSA short course 513: Gale/Underworld Framework Tutorial. This open source numerical framework opens new avenues for 2D and 3D computational tectonics.
Understanding finite strain resulting from polyphase deformation, long-term progressive deformation, and deformation involving both volume forces and plate boundary forces, remains a key challenge for structural geologists and tectonicists. Experimental deformation and computational tectonics complement field-based investigation by exploring stress, strain, and strain rate through space and time, and the formation and evolution of complex structures at multiple scales and levels in the lithosphere.
This session offers a broad platform for field, experimental and numerical studies on the deformation of the Earth's Lithosphere (continental and oceanic). Discussion will focus on studies linking field geology to experimental deformation and/or numerical modeling, from micro- to plate-scale structures. Contributions that address coeval extensional and contractional deformation, complex stress and strain patterns, and/or coeval deformation of rheologically distinct layers are particularly encouraged.
Invited Speaker and GSA 2011 Keynote Lecturer: Louis Moresi (Monash University, Australia). Over the past 15 years Prof. Louis Moresi has had a major contribution in the development of open source numerical codes and frameworks making computational tectonics available to all field geologists.
Invited Speaker: David Boutelier (Department of Geology, Earth Sciences Centre, University of Toronto, now at Monash University). Dr David Boutelier will present his recent work using analogue and numerical modeling techniques to investigate a large range of tectonic processes.
Invited
Speaker:
Whitney Behr (University of Southern California). Dr Whitney Behr will present her recent and very innovative research combining field and microstructural
observations to place constraints on the rates and types of flow in shear zones.
Please consider participating to GSA short course 513. This a chance for every field geologist to engage with numerical modelling.
GSA short course 513. Gale/Underworld Framework
Tutorial. Sat., 8 Oct., 8 a.m.–5 p.m. FREE; includes
continental breakfast and lunch. Limit: 50. CEU: 0.9. Attendees will need to bring laptop computers.
Cosponsor:
Computational Infrastructure for Geodynamics.
Louis Moresi, Monash University; Patrice Rey, University of Sydney; Walter Landry, CIG/Caltech.
Abstract: Gale/Underworld is an open source 2-D and 3-D parallel code for modeling long-term tectonic problems including orogenesis, rifting, subduction, and heat flow. Participants will learn to install and run Gale/Underworld. The tutorial is aimed at researchers who have not previously used Gale/Underworld and will cover its capabilities including the variety of boundary conditions, constitutive laws, and initial conditions implemented. Tutorial participants will be introduced to its use on the NSF TeraGrid, where the code is preinstalled. Gale/Underworld is developed and supported by the Computational Infrastructure for Geodynamics, an NSF-funded membership-governed organization.