Rapid Grain Size Reduction in the Upper Mantle at a Plate Boundary

Steven B Kidder1, James Scott2, David John Prior2 and Emily Jean Lubicich3, (1)CUNY City College of New York, Ridgewood, NY, United States, (2)University of Otago, Dunedin, New Zealand, (3)CUNY City College of New York, New York, NY, United States