Isotopic composition of lead in the Austinville-Ivanhoe Pb-Zn district, Virginia Foley, Nora K. ; Sinha, A. Krishna ; Craig, James R. Abstract Publication: Economic Geology Pub Date: November 1981 DOI: 10.2113/gsecongeo.76.7.2012 Bibcode: 1981EcGeo..76.2012F