TY - RPRT TI - Distribution and abundance of gold and silver in non-magnetic and moderately magnetic heavy-mineral-concentrate and minus-80-mesh stream-sediment samples and silver in ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska AU - H. D. King AU - E.F. Cooley AU - A.L. Gruzensky AU - D. L. Spiesman PY - 1983 DO - 10.3133/ofr80811h UR - https://pubs.usgs.gov/publication/ofr80811H ID - ofr80811H ER -