TY - RPRT TI - Geochemical map showing distribution and abundance of lead in silicified rocks, Goldfield mining district, Esmeralda and Nye Counties, Nevada AU - R. P. Ashley AU - W. J. Keith PY - 1973 DO - 10.3133/mf476 UR - https://pubs.usgs.gov/publication/mf476 ID - mf476 ER -