How does sea floor spreading explain the movement of tectonic plates?! - Sea floor spreading in movement of tectonic plates is called divergent‚ the separation of two plate. This can be proved because magma comes out from the fault of ridge which means plate has open and it’s realising the magma. Other reason‚ if diverging is happening at one point‚ that means converging is happening at other end of plate‚ for example Himalayan mountain range at India and Nepal (converging) and other side of plate
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Introduction A volcano is an opening‚ or rupture‚ in a planet’s surface or crust‚ which allows hot magma‚ volcanic ash and gases to escape from the magma chamber below the surface. How is a volcano formed? Most volcanoes are formed by the movement of tectonic plates on the surface of the earth. These plates are basically huge pieces of rock that ‘float’ on the mantle (a layer of the earth that is sort-of liquid rock). The tectonic plates are in constant motion‚ albeit very slow motion. They sometimes
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America fit together and same fossils were found on different continents. This theory is used to explain the distribution of earthquakes‚ volcanoes and Fold Mountains‚ it states that the earth’s core consists of semi molten magma and the earth’s surface or crust sits on top of the magma and moves to heat produced by the decay of radioactive isotopes and friction in the core. It is at the boundaries of these ‘plates’ where we find evidence for the idea of plate tectonic theory. Here many features are formed
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Have you ever wondered how the deadly eruption of Mount Vesuvius affected the city and its people in the past and present time? This is an intriguing topic to learn about and not to mention the history of this region. The colossal volcano has been haunting Italy throughout their existence. Proof of this‚ is the eruption before and after‚ tourism‚ and threats today are all factors of this of how the eruption has had an affect then and now. To start off‚ Mt.Vesuvius is immensely vicious and has
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Even though magma does rise and erupt at the spreading center‚ its volcanic process is not overly violent since the divergent plates are typically underwater. For this reason‚ the magma forms new oceanic crust in its eruption. Deep-sea trenches are a notorious bathymetric feature of convergent plate boundaries which often form at subduction zones‚ where one converging plate is moving beneath the other‚ hence their deep nature. As this plate descends further into the mantle‚ magma rises and partially
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reinforced it‚ and it moved rapidly down the northern fork of the Toutle Valley. The mudflow reached Baker Camp‚ but the floodwater continued down the valley and the sediment blocked Portland’s port on the Columbia River. 8:33—The exposed magma exploded sideways‚ which sent out blast waves of volcanic gas‚ steam‚ and dust‚ which is called a ‘nuée ardente’. This moved northwards for 25 km. Within this range every form of life‚ like plants and animals‚ were destroyed. For the rest of the
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showing that rock is being created and destroyed‚ this lead us to believe that plates and plate boundaries existed. The mid-Atlantic ridge is a constructive plate boundary where by the Eurasian and North American plates are moving apart‚ this allows magma to rise creating new plate material. This has created the island of Iceland which in itself has rift valleys which are evidence so support the plates are moving apart. Carbon dating has helped prove this theory as the crust nearer to the UK is much
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earthquake is a: Series of vibrations induced in the earth’s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. The earth is made up of tectonic plates these are massive slabs of rock floating on magma ‚as the plates move about‚ they spread apart‚ collide‚ or slide past each other‚ This is the main cause of volcanoes and earthquakes Earthquakes occur in many regions all over the world in some regions they occur more frequently and severely than
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------------------------------------------------- Mineral And Energy Resources ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Top of Form Almost all Earth Materials are used by humans for something. We require metals for making machines‚ sands and gravels for making roads and buildings‚ sand for making computer chips‚ limestone and gypsum
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Are Volcanoes a Blessing or Curse? Volcanoes are mountains‚ typically conical‚ where lava comes out from a magma chamber through a crater or a vent. There are two types of volcanoes; Composite and Shield. A composite volcano can be referred to as a cone volcano. These volcanoes have tall narrow cone and a wide base. Their magma chambers contain thick acidic lava‚ which means sometimes you can walk faster than the lava when it is moving! The layers of a cone volcano are usually alternated between
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