TY - RPRT TI - Geochemical map showing the distribution and abundance of copper, lead, and zinc in the oxide residue of stream-sediment samples in the Big Delta quadrangle, Alaska AU - Thomas D. Hessin AU - P. M. Taufen AU - G.W. Day AU - M. E. Karlson PY - 1978 DO - 10.3133/ofr78529k UR - https://pubs.usgs.gov/publication/ofr78529K ID - ofr78529K ER -