Comparison of lead ore and lead silicate slag from La Isabela with galena and sulfide mineralization in the Greater Antilles (5, 7) and galena from the Alcudia Valley–Los Pedroches, and Linares–La Carolina mining districts in Spain (11). Individual groupings represent a, Cuba (n = 2); b, Haiti, Puerto Rico, and Jamaica (n = 4); c, Pueblo Viejo Au–Ag oxide deposit (n = 9); d, the Alcudia Valley, Los Pedroches, and Linares–La Carolina areas (n = 83); and e, Los Pedroches (n = 4). Error limits for 207Pb/204Pb measurements are shown; all other errors are smaller than symbols. Data from ref. 11 that are not shown lie outside range of the plot. For each area, n = the number of analyses represented by each shaded ore field.