andMineralogy,P.O.Box136, NorthRyde,NewSouthWales2113,Australia Abstract Leadisotopeanalyses fromfour Austra...Australiancarbonate-hosted Pb-Zndeposits(Coxco,Sorby Hills, Pillara, and WagonPass)demonstratethat thesedepositshave...radiogeniclead. Of the depositswith heterogeneouslead, Coxco occursover an only slightly older basementand exhibitsthe...Isa-McArthurRiver belt in northern tered lead isotopepatterns.Theseresultssuggested Australia(Gulson,1975; Richards...deposits investigated in the courseof thisstudy were Coxco, which occursin the middle Proterozoic 1975; Staceyand |