TY - RPRT TI - Temporal geochemical variations in above- and below-drainage coal mine discharge AU - Jill E. Burrows AU - Stephen C. Peters AU - Charles A. Cravotta PY - 2015 DO - 10.1016/j.apgeochem.2015.02.010 UR - https://pubs.usgs.gov/publication/70159284 ID - 70159284 ER -