Home – Home – Jornals – Russian Geology and Geophysics 2003 number 1-2

We substantiate theoretically that the Paleozoic-Early Mesozoic Ural-Pai-Khoi-Novaya Zemlya fold belt recognized as Uralides are not analogous to Hercynides (Variscides) and the preceding Late Vendian Timan folded structures and lower structural units of the Urals recognized as Timanides are not analogous to Baikalides. Uralides and underlying Timanides are noticeably distinguished from the other rocks of the Ural-Mongolian fold belt. The Ordovician rifting and subsequent drift of continents, resulted in the Paleouralian ocean, seriously disturbed the initially intimate relationship between Timanides and European Cadomides and brought the former into a closer proximity to Baikalides, which formed at a different time. The subsequent evolution of Uralides also proceeded mainly in antiphase with more eastern, initially remote parts of the Ural-Mongolian belt. However, from Carboniferous to Middle Jurassic, during the formation of Pangea, the East European, Kazakhstanian, and Siberian continents underwent collision, and new intimate structural relationships were established within the Ural-Mongolian fold belt.