1. Department of Earth and Planetary Sciences, Jackson School of Geosciences, The University of Texas at Austin , Austin, TX 78712 , USA
2. Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin , Austin, TX 78712 , USA
3. Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin , Austin, TX 78712 , USA
4. Walker Department of Mechanical Engineering, The University of Texas at Austin , Austin, TX 78712 , USA