THE U-Pb AGE AND Lu-Hf ISOTOPE SYSTEMATICS OF ZIRCON FROM THE HULIAIPOLE MET AVOLCANICS, THE AZOV DOMAIN OF THE UKRAINIAN SHIELD: EVIDENCE FOR THE PALEOARCHEAN-HADEAN CRUST

The Azov Domain occurs as a part of larger Mesoarchean (3.2-3.0 Ga) craton, fragments which are preserved in the eastern Ukrainian Shield and block Kursk Magnetic Anomaly (KMA). In Neoarchean-Palaeoproterozoic time, it was fragmented into several tectonic blocks: Vovcha, Remivka, Huliaipole, Bilotserkivka, Saltych. northern Huliaipole Block is composed tonalite-trondhjemite-granodiorite (TTG) rock association, that hosts Kosivtsevo greenstone structure. It metamorphosed rocks jaspilite-komatiite-tholeiite association (the unit), corresponds to Sura Suite Konka Series Middle Dnieper Domain. Neoarchean-Paleoproterozoic formations represented by volcano-sedimentary granitoids Dobropillya Anadol complexes. Granitoids complex host numerous pyroxenite, gneiss, plagioclase granite xenoliths. U-Pb zircon age Complex 2040 Ma inherited has an up 3400 Ma. Small intrusions two-feldspar granites widespread Ternuvate Their monazite 2190 central Block, NW-striking syncline (3.5 × 9 km) occurs. This structure Suite, unconformably overlie Archean TTG. Felsic intermediate metavolcanics confined mainly ferruginous quartzites middle Subsuites. To limited extent, meta-andesites felsic also found lower upper Zircons from very heterogeneous, indicating their crustal derivation. populations metadacite determined using LA-ICP-MS method at 3085-2850 3700-3360 addition, two crystals exceeded 3800 According geological geochronological data, 30 50 km size, relicts Hadean, Archean, Palaeoproterozoic eons. oldest nucleoid