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Video Writing Assignment - Living Rocks USGS

Video Writing Assignment - Living Rocks USGS - Bruce Cecil...

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Bruce Cecil GEOL 101 Summer June 24, 2011 Video Writing Assignment: Living Rock (USGS) Basin and Range: The basin and range province is located between the Rocky and Sierra Nevada Mountains. It consists of an area of approximately 2,000 miles where the Earth’s crust and upper mantle have been stretched resulting in large faults. These faults trend in a north-south direction resulting in alternating mountain and valley regions. Continental Curst: The continental crust is composed of layers of sedimentary, igneous, and metamorphic rocks, which form the continents. These areas range in thickness from 25 to 45 miles with no uniformity in structure or composition. Crustal Spread: Crustal spread is the result of divergent boundaries between two tectonic plates spreading apart resulting in rifting. Earthquakes: An earthquake is the product of an abrupt discharge of energy from the Earth’s crust resulting in seismic waves. Earthquakes typically occur at one of three different types of fault zones, which are categorized as either slip-strike, normal, and reverse (thrust). Erosion: Erosion is a natural process of weathering where solids (soil, rock, sediment, and other particles) are transported from their environment and deposited in a new location.
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