Ponomarenko O.M., Stepanyuk L.M., Kryvdik S.G., Sinitsyn V.O.
M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the National Academy of Sciences of Ukraine
Language: Ukrainian
Geochemistry and ore formation 2012, 31-32: 24-29
https://doi.org/10.15407/gof.2012.31.024
In the Ukrainian shield six stage of metasomatose processes had been took place. These results are based on published materials and new data obtained by means of U-Pb isotope dating. The first four events have occurred in crystalline rocks of the Middle Dnieper megablock during the Archean time. The two last Proterozoic events are of more spread and with them deposits of rare metals (Azov area), U, V, Sc (Kryviy Rig structure), U (Ingul, Dniester-Bug and Volianian megablocks), Be and polymetallic ores (Sushcany-Perga zone of Volianian megablock) are connected. It is shown that the age 2.9–1.8 Ma of metasomatites within the Ukrainian shield is practically the same like one of magmatic rocks to which they are predominantly related. Now no metasomatites which are younger than 1.7 Ma are not found within the Ukrainian shield.
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