TY - RPRT TI - Negative pH, efflorescent mineralogy, and consequences for environmental restoration at the iron mountain superfund site, California AU - D. Kirk Nordstrom AU - Charles N. Alpers PY - 1999 DO - 10.1073/pnas.96.7.3455 UR - https://pubs.usgs.gov/publication/70021746 ID - 70021746 ER -