TY - RPRT TI - Questa Baseline and Pre-mining Ground-Water Quality Investigation, 7. A Pictorial Record of Chemical Weathering, Erosional Processes, and Potential Debris-flow Hazards in Scar Areas Developed on Hydrothermally Altered Rocks AU - Geoffrey S. Plumlee AU - Steve Ludington AU - Kirk R. Vincent AU - Philip L. Verplanck AU - Jonathan S. Caine AU - K. Eric Livo PY - 2009 DO - 10.3133/ofr20061205 UR - https://pubs.usgs.gov/publication/ofr20061205 ID - ofr20061205 ER -