TY - RPRT TI - Chemistry of selected core samples, concentrate, tailings, and tailings pond waters: Pea Ridge iron (-lanthanide-gold) deposit, Washington County, Missouri AU - Richard I. Grauch AU - Philip L. Verplanck AU - Cheryl M. Seeger AU - James R. Budahn AU - Bradley S. Van Gosen PY - 2010 DO - 10.3133/ofr20101080 UR - https://pubs.usgs.gov/publication/ofr20101080 ID - ofr20101080 ER -