TY - RPRT TI - Geochemical map showing distribution of samples of nonmagnetic heavy-mineral concentrates that contain anomalous concentrations of antimony, arsenic, copper, lead, silver, and zinc in the Wallace 1° x 2° quadrangle, Montana and Idaho AU - D. L. Leach AU - J. A. Domenico PY - 1986 DO - 10.3133/i1509b UR - https://pubs.usgs.gov/publication/i1509B ID - i1509B ER -