TY - RPRT TI - Geochemical and mineralogical characterization of the abandoned Valzinco (lead-zinc) and Mitchell (gold) mine sites prior to reclamation, Spotsylvania County, Virginia AU - Jane M. Hammarstrom AU - Adam N. Johnson AU - Robert R. Seal AU - Allen L. Meier AU - Paul L. Briggs AU - Nadine M. Piatak PY - 2006 DO - 10.3133/sir20065085 UR - https://pubs.usgs.gov/publication/sir20065085 ID - sir20065085 ER -