one another. These pieces slowly assumed their present positions as the continents. PLATE TECTONIC THEORY Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth’s surface relative to each other‚ like slabs of ice on a lake. There are seven or eight major plates and many minor plates. Where plates meet‚ their relative motion determines the type of boundary: convergent‚ divergent‚ or transform
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Plate Tectonics Press Release GLG.101 August 16‚ 2013 Plate Tectonics Press Release Natural destroys are a part of the nature of the world. There are many different kinds of natural destroys hurricanes‚ tornados‚ tropical storms‚ and earthquakes. The great state of California is no stranger to its part of natural destroyers. Many cities in the state have had its share having earthquakes. Earthquakes are produced by abrupt motion along a fault when friction that resists such motion is overcome
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evidence for plate tectonics. It is the patterns on the rocks which presented a problem with the theory. There was thought to be a problem with the description of the movement being “slow and gradual”. According to scientists and geologists the movement would have been performed at a rapid speed. A physicist then predicted where the evidence for this rapid movement could be found and it was later proved that the argument against the theory was correct. The biblical view of plate tectonics conveys an
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To answer the following question: Relate the generation of all three rock types (igneous‚ sedimentary‚ and metamorphic) to plate tectonics. I will start first‚ with igneous rocks and how does it relate to plate tectonics. Second‚ with sedimentary rocks and progressively keep on answering how all three types of rocks relate to plate tectonics. Will be giving as much information I learned from class. To assure‚ answer is fully answered. The igneous process begins when magma forms by melting at depth
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How Plate Tectonic Theory Explains Mountains Shadi Alostaz The Plate Tectonic Theory explain mountains because they form in oceans. Mountains primarily form at plate margins‚ or places where boundaries of plates meet at and interact (Nagel and Sawinski 1). The mountains form in oceans mostly because of the mid ocean ridges. The mid ocean ridges converge‚ creating underwater mountains. The mountains above ground are mostly caused‚ and responsible for convergent plate boundaries The Plate Tectonic
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Associate Level Material Plate Tectonics Worksheet Answer the lab questions for this week and summarize the lab experience using this form. Carefully read Ch. 8 of Geoscience Laboratory. Complete this week’s lab by filling in your responses to the questions from Geoscience Laboratory. Although you are only required to respond to the questions in this worksheet‚ you are encouraged to answer others from the text on your own. Questions and charts are from Geoscience Laboratory‚ 5th ed. (p. 133-150)
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it is made up of large plates beneath the crust and when the plates move‚ it changes the surface. There are four types of plate boundaries and they are divergent boundaries‚ convergent boundaries‚ transform boundaries‚ and plate boundary zones. Convergent boundaries are where the crust is broken‚ and one plate goes over it‚ divergent boundaries is where new plates are created while the plates pull away‚ transform boundaries is where the crust may be produced or more‚ plate boundary zones are boundaries
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The development of the theory of plate tectonics from Continental Drift to the present The theory of continental drift first came to be in 1915 when Alfred Wegener first proposed his belief that 300 billion years ago there was one single supercontinent‚ Pangaea. At the time‚ most did not believe it was true as he had no proof or idea of how the masses of land would move. However‚ new evidence was put forward over time that fit with Wegener’s beliefs. The first key piece of evidence is the shape
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The initial theory of continental drift was put forward by a German meteorologist Alfred Wegener in 1915. This theory did not seem credible until it was connected with the plate tectonic theory in the mid 1960’s. The Tectonic plate theory had an advantage over previous predictions as it could be supported by observed occurrences. One such thing that supports these two theories is that seen from space the continents look as if they might once have been joined together. This possible idea was then
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The Structure of the Earth and Plate Tectonics Structure of the Earth Mantle • The Earth is made up of 3 main layers: Outer core Inner core – Core – Mantle – Crust Crust The Crust • This is where we live! • The Earth’s crust is made of: Continental Crust Oceanic Crust - thick (10-70km) - buoyant (less dense than oceanic crust) - mostly old - thin (~7 km) - dense (sinks under continental crust) - young How do we know what the Earth is made of? • Geophysical surveys: seismic‚ gravity‚
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