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Based on the evolutionary theory of U-Pb isotopic system,we have studied the geneticmodel for a uranium deposit occurring in carbonate-silicolite-pelite.The data show that theU-deposit is characterized by a multi-stage evolution with respect to its U-Pb isotopic system,and the mechanism of its genesis can be explained by later repeated superimposition of mine-ralization which took place at about 200±10m.y.,100±10m.y.,60±10m.y.and 11±1m.y.ago.These mineralization stages are closely related to regional tectonic activities.
Based on the evolutionary theory of U-Pb isotopic system, we have studied the genetic model for a uranium deposit occurring in carbonate-silicate-pelite. The data show that the U-deposit is characterized by a multi-stage evolution with respect to its U- Pb isotopic system, and the mechanism of its genesis can be explained by later repeated superimposition of mine-ralization which took place at about 200 ± 10 m.y., 100 ± 10 m.y., 60 ± 10 m.y. and 11 ± 1 m .y.ago.These mineralization stages are closely related to regional tectonic activities.