A dipping, thick Farallon slab below central United States
Daoyuan Sun, University of Science and Technology of China, Hefei, China, Michael Gurnis, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, Jason Saleeby, CALTECH, Pasadena, CA, United States and Donald V Helmberger, California Institute of Technology, Pasadena, CA, United States