TY - RPRT TI - Distribution and abundance of copper, lead, and zinc in nonmagnetic and moderately magnetic heavy-mineral-concentrate, minus-80-mesh stream-sediment, and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska AU - H. D. King PY - 1983 DO - 10.3133/ofr80811i UR - https://pubs.usgs.gov/publication/ofr80811I ID - ofr80811I ER -