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Páginas: 2 (293 palabras)
Publicado: 31 de octubre de 2012
Fold mountains
They are the most common mountain.Fold mountains are formed when two plates collide head on, and their edges crumbled, much the same way as a piece ofpaper folds when pushed together.
Example: Himalayan mountains
Fault block mountains
These mountains form when faults or cracks in the earth's crust force somematerials or blocks of rock up and others down.
Instead of the earth folding over, the earth's crust fractures. It breaks up into blocks or chunks. Sometimes theseblocks of rock move up and down, as they move apart and blocks of rock end up being stacked on one another.
Dome
Dome mountains are the result of a great amount of meltedrock (magma) pushing its way up under the earth crust. Without actually erupting onto the surface, the magma pushes up overlaying rock layers. At some point, the magmacools and forms hardened rock. The uplifted area created by rising magma is called a dome because of looking like the top half of a sphere.
Volcanic
As the name suggests,volcanic mountains are formed by volcanoes.
Volcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface. Magna iscalled lava when it breaks through the earth's crust. When the ash and lava cools, it builds a cone of rock. Rock and lava pile up, layer on top of layer.
ErosionPlateau mountains are not formed by internal activity. Instead, these mountains are formed by erosion. Plateaus are large flat areas that have been pushed above sea level byforces within the Earth, or have been formed by layers of lava. The dictionary describes these as large areas of ‘high levels’ of flat land, over 600 meters above
sea level.
They are the most common mountain.Fold mountains are formed when two plates collide head on, and their edges crumbled, much the same way as a piece ofpaper folds when pushed together.
Example: Himalayan mountains
Fault block mountains
These mountains form when faults or cracks in the earth's crust force somematerials or blocks of rock up and others down.
Instead of the earth folding over, the earth's crust fractures. It breaks up into blocks or chunks. Sometimes theseblocks of rock move up and down, as they move apart and blocks of rock end up being stacked on one another.
Dome
Dome mountains are the result of a great amount of meltedrock (magma) pushing its way up under the earth crust. Without actually erupting onto the surface, the magma pushes up overlaying rock layers. At some point, the magmacools and forms hardened rock. The uplifted area created by rising magma is called a dome because of looking like the top half of a sphere.
Volcanic
As the name suggests,volcanic mountains are formed by volcanoes.
Volcanic Mountains are formed when molten rock (magma) deep within the earth, erupts, and piles upon the surface. Magna iscalled lava when it breaks through the earth's crust. When the ash and lava cools, it builds a cone of rock. Rock and lava pile up, layer on top of layer.
ErosionPlateau mountains are not formed by internal activity. Instead, these mountains are formed by erosion. Plateaus are large flat areas that have been pushed above sea level byforces within the Earth, or have been formed by layers of lava. The dictionary describes these as large areas of ‘high levels’ of flat land, over 600 meters above
sea level.
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