Abstract
For the first time in Russia, the Th-U-Pb isochron and point ages of zircons with anomalous U, Th, Pb, Y, and REE contents were determined by chemical dating. Zircons were extracted from metasomatic veinlets, which cut the eclogitized dike of olivine gabbronorites. The Paleoproterozoic ages (∼2400, 2100, and 1890 Ma) are quite consistent with the previously determined U-Pb SHRIMP II age of these zircons.
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