Distribution of zircon age values in metamorphic rocks within the Taratash block of the Southern Urals (initial provenance signal)

The article establishes and realizes an idea of definition of the initial provenance signal for the Southern Urals Taratash block using isotope dating of the zircons in the Archean and Early Proterozoic magmatic and metamorphic rocks. The work takes into account 132 data for which the discordance did not exceed 10%. We obtained a probability density diagram for zircon ages, which we used firstly for comparison with detrital zircons ages from the sandstones of lower riphean Ay suite, and secondly, with density of the zircon ages in the metamorphic rocks of the Aleksandrovsky block located to the east. The similarity of distributions was verified by means of the Kolmogorov-Smirnov test.