TY - RPRT TI - A lead isotope study of galenas and selected feldspars from mining Districts in Utah AU - J. S. Stacey AU - R. E. Zartman AU - Ignatius T. Nkomo PY - 1968 DO - 10.2113/gsecongeo.63.7.796 UR - https://pubs.usgs.gov/publication/70221364 ID - 70221364 ER -