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The isotopic compositions of lead and the approximate concentrations of lead and uranium were determined for some gneisses and Paleozoic sandstones from the Hida metamorphic terrain, Japan. All the Hida gneisses studied have similar 206Pb/204Pb and 207 Pb/204Pb ratios . The lead in these rocks is significantly more radiogenic than that from the Precambrian metamorphic complex in the eastern part of Asian continent. This difference suggests that these two rock systems developed in differentdoi:10.2343/geochemj.6.105 fatcat:f3a63o5hvnepxhti5vyrubvufe