Share GEOLOGICAL HISTORY OF THE TERRITORY OF KAZAKHSTAN
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part of our country is located within one of the world's major structures
the Ural-Mongolian folded belt.
are stable, immovable parts of the Earth's crust
Platforms
Which major platforms occupy a large part of Kazakhstan’s territory?
The ancient East European platform and the young Eurasian platform.
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.
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 structural layers of a platform?
The lower layer (basement) made of folded rocks and the upper layer (sedimentary cover) composed of sedimentary rocks.
What are platforms in geological terms?
Platforms are stable, immovable parts of the Earth's crust that usually correspond to flat areas.
What type of landforms do young folded belts create?
Young folded belts create high mountains.
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 are the two main types of large geological structures mentioned
Folded belts and platforms.
Why does the Earth's crust differ from place to place in Kazakhstan?
Because it varies in rock composition, structure, and formation history.
How was the Earth's crust within modern Kazakhstan formed?
It was formed over a long period under various geological processes.
