On the origin of small-scale seismic scatters at 660-km depth

Wei Mao, California Institute of Technology, Seismological Laboratory, Pasadena, United States, Michael Gurnis, California Institute of Technology, Pasadena, United States and Wenbo Wu, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States; Woods Hole Oceanographic Institution, Woods Hole, United States