Chávez,
William, X., Jr.
Mineral & Environmental Engineering Department
New Mexico School of Mines
Socorro, New Mexico, U.S.A. 87801
505-835-5317 (O)
505-266-2989 (H)
505-835-5252 (FAX)
wxchavez@nmt.edu |
Erich
U. Petersen
Department of Geology & Geophysics
135 S. 1460 East, Room 719
University of Utah
Salt Lake City, Utah 84112-0111
801-581-7238 (O)
801-483-2289 (H)
801-440-1069 (cell)
petersen@earth.utah.edu |
Peteresen (l) & Chávez (r)