why are the fold mountains called so?
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Fold mountains are mountains that form mainly by the effects of folding on layers within the upper part of the Earth's crust. Before either plate tectonic theory developed, or the internal architecture of thrust belts became well understood, the term was used for most mountain belts, such as the Himalayas. The term is still fairly common in physical geography literature but has otherwise generally fallen out of use except as described below. The forces responsible for formation of fold mountains are called orogenic movements. The term orogenic has derived from a Greek word meaning mountain building. These forces act at tangent to the surface of the earth and are primarily a result of plate tectonics.
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Heya!
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☆ MOUNTAINS
☞ Mountains are elavated land masses with peaks smaller than their base and of a height above 300 metres or 1000 fts. Similar elevations below 300m or 1000 fts. are called hills.
☞ Mountains can be classified on the mode of their origin or formation into four types :
( i ) Fold Mountains
( ii ) Block Mountains
( iii ) Volcanic Mountains
( iv ) Relict or Residual Mountains
☆ DEFINITIONS
➡(i) Fold Mountains : The mountains formed by the crumbling or folding of rocks resulting in huge wrinkles are called fold mountains. These are formed as a result of earthquakes. Himalayas, Alps, Andes, etc. are the examples of folded mountains.
➡(ii) Block Mountains : A mountain mass formed by the lifting up of land batween faults or by the sinking of land outside the faults are called block mountains.
➡(iii) Volcanic Mountains : A volcanic mountain is a mountain formed of material that has erupted from inside the earth in the form of lava. Mt. Fujiyama in Japan, Mt. Visuvius in Italy are examples of Volcanic mountains.
➡(iv) Relict or Residual Mountains : Mountains which are deeply dissected and reduced by weathering and river action are called residual mountains.
Mountains of Chotanagpur, Vindhya, Satpura and Mahadev are the examples of Residual mountains. The youngest mountain of India is the Himalayas.
((:Hope it helps.....✴✴
((:Thank You.....✴✴
Your answer
☆ MOUNTAINS
☞ Mountains are elavated land masses with peaks smaller than their base and of a height above 300 metres or 1000 fts. Similar elevations below 300m or 1000 fts. are called hills.
☞ Mountains can be classified on the mode of their origin or formation into four types :
( i ) Fold Mountains
( ii ) Block Mountains
( iii ) Volcanic Mountains
( iv ) Relict or Residual Mountains
☆ DEFINITIONS
➡(i) Fold Mountains : The mountains formed by the crumbling or folding of rocks resulting in huge wrinkles are called fold mountains. These are formed as a result of earthquakes. Himalayas, Alps, Andes, etc. are the examples of folded mountains.
➡(ii) Block Mountains : A mountain mass formed by the lifting up of land batween faults or by the sinking of land outside the faults are called block mountains.
➡(iii) Volcanic Mountains : A volcanic mountain is a mountain formed of material that has erupted from inside the earth in the form of lava. Mt. Fujiyama in Japan, Mt. Visuvius in Italy are examples of Volcanic mountains.
➡(iv) Relict or Residual Mountains : Mountains which are deeply dissected and reduced by weathering and river action are called residual mountains.
Mountains of Chotanagpur, Vindhya, Satpura and Mahadev are the examples of Residual mountains. The youngest mountain of India is the Himalayas.
((:Hope it helps.....✴✴
((:Thank You.....✴✴
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