why do himalayas considered as unstable zone?
Answers
Answered by
3
To understand the whole phenomenon you should have to know a few terms : plate tectonic theory , subduction , slide slide movement, sea floor spreading, and an overview of the structure of earth. Let me tell you one by one.
Plate tectonic theory:Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake.
2. Subduction: Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle. Regions where this process occurs are known as subduction zones. ... Plates include both oceanic crust and continental crust.
3. Sea floor spreading: in short , due to conventional forces , being presence of lava hot spot or benoif zone , into the ocean volcanic eruption takes place, that is why surface area of the ocean is increasing.
According to continental continental drift theory Indian subcontinent which was the part of Gondwanaland land earlier, moved towards static Eurasia plate to join it and resultantly Himalayan originated . Himalayan is also classified in new fold mountains because it was formed later . At that time subduction took place the densor land moved in due to gravity and since then when ever sea floor spreading takes place an effect is experience in the Himalayan region. Due to subduction zone Himalayan has a lot of volcanic dare itself and additionally sea floor spreading makes it more vulnerable. One more thing can be added , since Himalayan rocks are made of mixture of more sedimentary and few igneous rocks this leads lesser density of Himalaya making it very much vulnerable.
Thank you friends, though I could give little time to answer this question. For any mistake I apologize in advance.
Plate tectonic theory:Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake.
2. Subduction: Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle. Regions where this process occurs are known as subduction zones. ... Plates include both oceanic crust and continental crust.
3. Sea floor spreading: in short , due to conventional forces , being presence of lava hot spot or benoif zone , into the ocean volcanic eruption takes place, that is why surface area of the ocean is increasing.
According to continental continental drift theory Indian subcontinent which was the part of Gondwanaland land earlier, moved towards static Eurasia plate to join it and resultantly Himalayan originated . Himalayan is also classified in new fold mountains because it was formed later . At that time subduction took place the densor land moved in due to gravity and since then when ever sea floor spreading takes place an effect is experience in the Himalayan region. Due to subduction zone Himalayan has a lot of volcanic dare itself and additionally sea floor spreading makes it more vulnerable. One more thing can be added , since Himalayan rocks are made of mixture of more sedimentary and few igneous rocks this leads lesser density of Himalaya making it very much vulnerable.
Thank you friends, though I could give little time to answer this question. For any mistake I apologize in advance.
Answered by
1
Answer:The mountain was formed by convergent movement . But we know that it was rised from tethys. If it becomes divergent movement then the himalayan mountain will sinc in the Earth.
Explanation:
Similar questions