Orogeny is the building of mountains. Most mountains are formed when one techtonic plate subducts under another pushing the top plate up. Mount Everests includes sedimentary rock that was part of the sea. The subduction can sweep seawater and silt under a plate setting up the conditions for huge volcanoes as magma is formed and rises through the stratta above as in the Andes.
2006-06-27 15:27:56
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answer #1
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answered by Kes 7
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When two plates moving against each other and collide, if both are of the same strength, then an earth quack occures. If it is a powerful movement mountains will be born both either on land or at seas. It is possible this plates move away from each other, then there will be a deep valley occures. These things are happening continiously by the inches.
2006-06-27 15:32:24
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answer #2
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answered by Richard L 1
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Most mountains (on land) were formed long ago...either by plate technomics smashing into each other or from volcanoes (esp underwater ones). Often those volcanoes are also influenced by plate technomics. Note: technomic shifting is also responsible for earthquakes which may occasionally form mountains.
Oh, I just reread your q. I believe the most common way for new mountains to form is through volcanoes, esp in the Ocean.
2006-06-27 16:07:26
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answer #3
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answered by Anonymous
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Preassure in the Earth's crust from Tectonic plate movement cause the crust to buckle in places and create mountain ranges.
Individual mountains (stand alone peaks) are created as preassure below the surface caused by expanding magma push upwards on a single spot of crust a fissure is formed, and a small volcano is formed. over hundreds of years for an active volcano, or as much as millions for a rarely active one they will grow in size as lava is released and covers the existing mound.
2006-06-27 15:01:23
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answer #4
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answered by lovpayne 3
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I think it's when the tectonic plates collide and move against each other. Same as volcanoes and earthquakes. Most mountains are formed on the tectonic lines (I can't remember what they're called, whatever the edges are).
2006-06-27 15:00:25
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answer #5
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answered by Clueless 3
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Standard answer is where the tectonic plates move. When, though? When massive disturbance in our solar system shake the planets, like electric discharges between planet-sized bodies. This is when the mountains and rivers and lakes and all that good stuff form.
2006-06-27 15:04:51
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answer #6
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answered by Tony, ya feel me? 3
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The last Ice Age. Large glaciers of ice pushed "mountains" of dirt and rock before them as they grew and expanded. And after the ice melted... bingo'... mountains.
2006-06-27 15:01:43
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answer #7
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answered by soul_plus_heart_equals_man 4
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plate tectonics
2 plates come together and force the crust of the earth where they meet upward...there is no subduction (?) zone. which means that one plate doesnt slide under the other, that would be what is commonly called a fault line.
2006-06-27 15:00:26
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answer #8
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answered by bo_hic_a 4
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the tectonic plates smash into each other. or when water erodes the ground ie. Grand Canyon
2006-06-27 14:59:18
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answer #9
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answered by kcracer1 5
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The earth's tectonic plates shift and rub against each other.
2006-06-27 14:58:42
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answer #10
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answered by imacowboygirl 3
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