TY - RPRT TI - Surface disposal of produced waters in western and southwestern Pennsylvania: potential for accumulation of alkali-earth elements in sediments AU - Katherine J. Skalak AU - Mark A. Engle AU - Elisabeth L. Rowan AU - Glenn D. Jolly AU - Kathryn M. Conko AU - Adam J. Benthem AU - Thomas F. Kraemer PY - 2014 DO - 10.1016/j.coal.2013.12.001 UR - https://pubs.usgs.gov/publication/70072615 ID - 70072615 ER -