Fold Mountains Faultblock Mountains Formations of Mountains Dome
Fold Mountains Fault-block Mountains Formations of Mountains Dome Mountains Plateau Mountains By: Katie Marquis 8 E
Fold Mountains The most common mountains are fold mountains. Fold mountains are formed flat then they create horizontal layers. Fold mountains are formed when the continental plates collide. The upturns in this diagram below are called anticlines and the downturns are called synclines. The Rocky Mountains in North America, the Alps in Europe, the Andes in South America, the Urals in Russia and the Himalayan Mountains in Asia are examples of Fold Mountains.
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Fault-block Mountains o Uplifted rocks are called block mountains or horsts. The Fault-block mountains are created o Block mountains have two steep sides, when faults or cracks in the Earth's crust one steep front side and then a sloping force rocks up or down. back side. Fault blocks are very large blocks of rock, o Collapsed rocks are called graben, sometimes hundreds of kilometres in area. which can be small or form valley The largest of these fault blocks are called systems. crustal blocks. o Fault-block mountains break up into chunks and move either up or down. When they move apart blocks of rock get stacked on one another. this figure shows Fault block mountains having one side steep and a lope on the other
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Dome Mountains are also called ‘up warped’ Mountains. These mountains are formed when large amounts of molten rock or magma push the earth’s crust from underneath. The diameters of the bases of dome mountains range up to hundreds of kilometres. Dome mountains are formed in the same way as volcanoes. The hot temperatures in the Earth cause solid rocks to melt, forming magma. Magma rises upwards and forms a dome shape. The Richat Structure in the Sahara Desert, Africa
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Plateau Mountains Plateau mountains are high areas of land they can range from any size. Plateau Mountains are formed by Erosion. Plateaus are naturally built over millions of years. The highest and biggest plateau on Earth, the Tibetan Plateau in East Asia, resulted from a collision between two tectonic plates about 55 million years ago. Island in the Sky, Canyonlands National Park Argentina, Patagonia,
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