TY - RPRT TI - Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado AU - Barnaby W. Rockwell PY - 2012 DO - 10.3133/sim3190 UR - https://pubs.usgs.gov/publication/sim3190 ID - sim3190 ER -