different particles. The new particles that are formed when exposed to the elements are then in equilibrium. 2.) Minnesota is located on the North American plate. The Caribbean Plate is one of the closest boundaries and it is mostly a transform boundary but also has some areas of convergence. Another of the closest boundaries is the Juan de Fuca Plate and it is a convergent boundary. 3.) The most likely of the geologic hazards that could happen to Minnesotans is flooding and the possibility of landslides
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Tectonics and Continental Drift Past and Present Locations Abstract When we look at our earth’s surface now it has seven continents‚ and five of them are divided by the oceans that surround them. In 1912 Alfred Wegner (1880-1930)‚ came up with a theory called the continental drift; stating that over three hundred years ago all seven continents were once one super continent called Pangaea. Wegner tried to convince other scientists and geologist for many years that the continents
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earths crust. As it moved along the crust‚ friction caused the plates to move. These convection currents beneath the earths surface forced the Australian plate to collide with the Pacific plate. Along this plate boundary‚ the pacific plate was being subducted underneath the Australian plate- which held the North Island of New Zealand. This made the Australian plate near the boundary buckle and bend as it pressed up against the Pacific plate. The limestone that was formed on the seabed was then forced
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tectonic nature of the Earth. Such earthquakes are called tectonic earthquakes. The Earth’s lithosphere is a patchwork of plates in slow but constant motion caused by the release to space of the heat in the Earth’s mantle and core. The heat causes the rock in the Earth to flow on geological timescales‚ so that the plates move slowly but surely. Plate boundaries lock as the plates move past each other‚ creating frictional stress. When the frictional stress
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can the movements of the continents be explained‚ or how do deep ocean trenches affect us? The three main theories that explain how these things work are sea-floor spreading‚ continental drift‚ and plate tectonics. These are the theories that give us explanation as to why the continents move‚ how plate tectonics work‚ etc. These theories were formed by different scientists and with different forms of evidence‚ some scientists used one of the other two theories to support theirs‚ and one theory is
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crust‚ & continental crust. Plates: The lithosphere broken up into individual pieces. They move over the mantles Asthenosphere. Movement of Earth’s Plates:The plates move due to the mantles CONVECTION CELLS: warm material rises toward surface‚ cools&descends back into the interior. Creating volcanoes‚ earthquakes‚ MTNS. Crust: Earth’s outer most layer 2typesContintinential: thick w/silicon‚aluminum-Oceanic crust:Thin denser w/ dark igneous rocks (basalt/gabbro) PLATE TECHTONIC THEORY:The lithosphere
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native only to itself. The purpose of this essay is to discuss the geological history of the formation‚ as well as the biological origins‚ of New Zealand. It will also discuss how the major land-forming processes of volcanism‚ glaciation and tectonic plates have shaped the country and defined it’s native flora and fauna. Eighty-five million years ago the landmass now known as New Zealand broke away from the supercontinent Gondwana. This massive landmass moved into the Pacific Ocean and eventually became
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pieces of evidence towards proving that the plate tectonics theory is valid” Discuss the extent to which you agree with this statement (40m) The theory of plate tectonics explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates‚ and these move relative to one another creating boundaries at which the plates converge‚ diverge or move past each other. These plates are either continental or oceanic and are
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Analyse the factors that cause differences in the hazards posed by volcanoes around the world (40 marks) Your main factors can be put into two simple categories. Human and physical. From there you can then further explore the factors. In my essay I will mainly focus on viscosity‚ location‚ settlement and perception and explore how the physical and human factors intertwine with each other through one simple idea that physical factors dictate the hazard while human factors exacerbate the hazard. From
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the mid-ocean ridges because they are divergent plate boundaries.-areas where earth’s lithospheric plates are moving away from each other. The movement causes the crust to be very "thin ". The thinning allows the magma to come to the surface and form a volcano. Volcanoes can also occur at tectonic plate boundaries because Volcanoes form where the earth’s crust is thin and the magma can flow to the surface easier. This happens mostly at the edge of the plates. Volcanoes lastly can occur at subduction zones
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