1. Energy and Geoscience Institute; University of Utah; 423 Wakara Way, Suite 300,; Salt Lake City; Utah; 84108; USA
2. Department of Geology and Geophysics; University of Utah; 717 W. B. Browning Building,; Salt Lake City; Utah; 84112; USA
3. Geometrics, Inc.; 2190 Fortune Drive,; San Jose; California; 95131; USA
4. Numeric Resources, Inc.; 1740 Kensington Avenue,; Salt Lake City; Utah; 84108; USA
5. Green Engineering Inc.; 2215 Curtis Street,; Berkeley; California; 94702; USA
6. SourceOne Geophysical Inc.; 10511 Golden Pines Road,; Truckee; California; 96161; USA
7. Department of Physics; University of Alberta; Edmonton, Alberta; Canada; T6G 2J1