Role of the Taratash indenter in the Ural mountains building

In: Moscow University Bulletin. Series 4. Geology, Heft 1, S. 3-12

Abstract

The article presents the new data concerning the bounding zones of the Archean - Early Proterozoic Taratash block. It breaks the longitude structure of the Urals, squeezing all structural zones at a latitude of the town Miass. There were studied the meso- and microstructures of the boundary zones, anisotropy of magnetic susceptibility of faulted rocks and distribution of seismic waves velocities in to blastomylonites. We suggest that kinematic history of the Taratash block consists of two phases: 1) Middle Riphean exhumation of Taratash rocks in tension environ- ment; 2) Late Paleozoic formation of Indenter due regional shortening setting.