TY - RPRT TI - Distribution and abundance of molybdenum, tin and tungsten in nonmagnetic and moderately magnetic heavy-mineral-concentrate samples and tin in minus-80-mesh stream-sediment and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska AU - H. D. King AU - D. A. Risoli AU - R. B. Tripp PY - 1983 DO - 10.3133/ofr80811j UR - https://pubs.usgs.gov/publication/ofr80811J ID - ofr80811J ER -