Plate Tectonics The forces that shape the earth begin beneath the lithosphere. Rock in the asthenosphere is hot enough to flow slowly. Heated rock rises‚ moves up toward the lithosphere‚ cools and circulates downward. Riding above this circulation system are the tectonic plates‚ enormous moving pieces of the earth’s lithosphere. [pic] Plate Movement Tectonic Plates move in four different ways. When tectonic plates come into contact‚ changes on the earth’s surface occur. 1. Diveregnt Boundary-
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tentative conclusion/explanation about natural processes being questioned * It can be revised/changed as needed * Scientists are actually trying to prove the conclusion wrong | Scientific Theory | * A conclusion/explanation that is supported by experimental or factual evidence but has not been conclusively proved * Theories explain the data in a concise manner * Example: E = mc2 theory of relativity | Natural Law | * Never ever false | Alfred Wegener | * “Father of Plate Tectonics
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abundant in the surface crust and mantle‚ while the densest (iron) makes up most of what is found deep in the core. Earth’s major interacting systems are the climate system‚ the plate tectonic system‚ and the geodynamic system. The climate system involves interactions among the atmosphere‚ hydrosphere‚ and biosphere. The plate
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where tectonic plates are diverging or converging. A mid-oceanic ridge‚ for example the Mid-Atlantic Ridge‚ has examples of volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by convergent tectonic plates coming together. By contrast‚ volcanoes are not usually created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the Earth’s crust in the interiors of plates‚ e.g
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Geology 122 JAVELOSA‚ Luis Antonio A. 2008-68085 Plate tectonics as expressed in geological landforms and events: An exploration using global data and global visualization tools JAPAN (Convergent): Japan features a very interesting series of geomorphological features. The island lies in the Pacific Ring of Fire that is characterized by having active volcanic and tectonic activity. Due to its geomorphology‚ the area is very vulnerable to environmental hazards such as earthquakes‚ tsunamis‚ and
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deepest ocean trenches to the highest mountain rangers‚ plate tectonics explain all of the features from the past and present. A plate tectonic is a theory that was developed in the 1960s. According to the concept‚ Earth has a rigid layer called the lithosphere‚ which is normally 100km thick. The lithosphere is broken up into seven large continental and oceanic plates‚ six or seven medium sized regional plates‚ and various small ones. These plates do not move very far very quickly‚ and they usually slide
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that is |considered erosion. | | |affected has to be rebuilt. | | In the following space‚ explain the role of plate tectonics in the origin of sedimentary rock. Your explanation must be between 250 and 450 words. Sedimentary rocks can be
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500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. The role of plate tectonics in the origin of igneous rock is extremely important. Igneous rock is formed from magma that reaches the continental and oceanic crust or through hot spots that are around the world. There are three different places where igneous rocks can form; where the lithospheric plates pull apart at mid ocean ridges‚ where plates come together at seduction zones‚ and where continental
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about 75 to 85 % of the land on Earth. When pieces of rock or parts of once- living organisms or minerals from precipitation deposit and solidify on Earth’s surface they for sedimentary rocks. (Murck‚ et al.‚ 2008) In addition‚ the way the plate tectonics move‚ can significantly affect sedimentation and the formation of sedimentary rocks. There are three main types of sedimentary rocks which are classified by the source of the sediments. They are clastic‚ biogenic‚ and chemical sedimentary
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landforms have. For instance‚ lava domes may be shaped like hills‚ but the two landforms have very different origins. The major forces that produce landforms are erosion‚ plate tectonics and volcanic activity. Different physical forces can create similar landforms‚ such as the case of rift valleys (created by the separation of tectonic plates) and river valleys (created by erosion). Understanding what created a landform is crucial to explaining many of the smaller features within the landform (such as the
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