Two stages of high-pressure metamorphism in the Main Uralian Fault area (northern Urals)
G.A. Petrova, Yu.L. Ronkin b , N.V. Popov c , N.I. Tristan a , P.S. Kozlov b
a Uralian Geological-Survey Expedition Joint-Stock Company, 55 ul. Vainera, Yekaterinburg, 620144, Russia
b Institute of Geology and Geochemistry, Uralian Branch of the RAS, 7 Pochtovyi per., Yekaterinburg, 620151, Russia
c Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: High-pressure metamorphism; Main Uralian Fault; Sm-Nd isochrone age
Pages: 43-45
Abstract
Metamorphism in the northern sector of the Main Uralian Fault (MUF) area, northern Urals, is considered by the example of the Salatim glaucophane-schist and Belokamenka kyanite-staurolite complexes. New isotope-geochronological dates for metamorphic rocks of the MUF area are presented. The obtained data evidence the existence of two metamorphic events, of Early and Late Devonian ages, which apparently correspond to the wedging-up of subduction paleozones.
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