Title

A. L. KONOVALOV (VSEGEI), S. A. SERGEEV (VSEGEI, IES SPb State University)

Towards the age of zircons from jadeitites of Syumkeu ultramafic massif in the Main Uralian Fault zone (Polar Urals)

Based on petrographic and geochemical studies new geochronological data on zircons from Pusierka deposit jadeitites localized in serpentinized allochthonous ultramafic rocks (Syumkeu massif) in the Main Uralian Fault zone are obtained.
Keywords: jadeitite, serpentinite, glaucophane schist, serpentinite melange, high­pressure metamorphism, sodium metasomatism, Main Uralian Fault, isotope geochronology, U­Pb systematics.