NORTHERN PROVINCE (DIUA AND BARONNI) AS A N EXAMPLE MORPHOTECTONICS OF THE OUTER CHAINS OF THE ALPIAN OROGENS

Under consideration are folded mountains of the western margin of the Alpian orogenic belt, formed in the layered upper tectonic slab moving , under conditions of horizontal compression, towards the foreland and suffering folding and tectonic heaping. Description is given to the m ain Jurassic and sub-Alpian morphotectonic features: synclinal valleys and anticlinal ridges, monoclinal crests, and uplifted cores of syncl ines. A model for the formation of folded mountains (Jurassic mechanis m of orogeny) has been proposed. Folded mountains or Jurassic-type rel ief are specific for the morphotectonics of the outer chains of the Al pian-Himalayan mobile belt.