Stacey, John Lead-isotopic compositions of diverse igneous rocks and ore deposits from southwestern New Mexico and their implications for early Proterozoic crustal evolution in the western United States bibliogr. p. 56-57 ISSN: 00167606 Subjects--Topical Terms: Roche ignéePlomb sustanceIsotopeU-PbZirconAgeCro–te terrestrePb-Pb Subjects--Index Terms: Etats Unis New Mexico