TY - RPRT TI - Characterization of waste rock associated with acid drainage at the Penn Mine, California, by ground-based visible to short-wave infrared reflectance spectroscopy assisted by digital mapping AU - S.I.C. Montero AU - G.H. Brimhall AU - Charles N. Alpers AU - G.A. Swayze PY - 2005 DO - 10.1016/j.chemgeo.2004.06.045 UR - https://pubs.usgs.gov/publication/70029395 ID - 70029395 ER -