Grain scale observations of stick-slip dynamics in fluid saturated granular fault gouge

Omid Dorostkar1, Paul A Johnson2, Robert A Guyer3, Chris Marone4 and Jan Carmeliet1, (1)ETH Swiss Federal Institute of Technology Zurich, Department of Mechanical Engineering, Zurich, Switzerland, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States, (4)Penn State University, Department of Geosciences, University Park, PA, United States