TY - RPRT TI - Geochemical map showing the distribution of selected elements determined in nonmagnetic heavy-mineral concentrates from the Ugashik, Bristol Bay, and western Karluk quadrangles, Alaska AU - J. G. Frisken AU - S. E. Church AU - D.E. Detra AU - W. R. Willson PY - 1988 DO - 10.3133/mf1539g UR - https://pubs.usgs.gov/publication/mf1539G ID - mf1539G ER -