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GEOLOGICAL HISTORY OF THE TERRITORY OF KAZAKHSTA ...

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  • What are platforms in geological terms?
    Platforms are stable, immovable parts of the Earth's crust that usually correspond to flat areas.
  • part of our country is located within one of the world's major structures
    the Ural-Mongolian folded belt.
  • Why does the Earth's crust differ from place to place in Kazakhstan?
    Because it varies in rock composition, structure, and formation history.
  • What is a folded belt?
    A folded belt is a mobile area of the Earth's crust where rocks are folded and mountains are formed due to tectonic movements.
  • What is the difference between a plate and a shield?
    A plate has a sedimentary cover, while in a shield the sedimentary cover is missing, exposing the crystalline basement.
  • What are the two main types of large geological structures mentioned
    Folded belts and platforms.
  • How are platforms classified according to age?
    Platforms are classified as ancient if their basement formed in the Archean and Proterozoic eras, and young if formed in the Paleozoic.
  • Which major platforms occupy a large part of Kazakhstan’s territory?
    The ancient East European platform and the young Eurasian platform.
  • What are the two structural layers of a platform?
    The lower layer (basement) made of folded rocks and the upper layer (sedimentary cover) composed of sedimentary rocks.
  • are stable, immovable parts of the Earth's crust
    Platforms
  • How was the Earth's crust within modern Kazakhstan formed?
    It was formed over a long period under various geological processes.
  • What type of landforms do young folded belts create?
    Young folded belts create high mountains.