Earthquakes are a result of two tectonic plates moving past one another. Because the plates do not slide past each other smoothly often the edges of the plates, or plate boundaries, stick together whereas the rest of the block continues to move (Wald, 2009). The plate boundaries are comprised of numerous faults, and it is along the faults where the majority of earthquakes occur (Murck, Skinner, & Mackenzie, 2008). The energy that normally forces the plates to the move past one another begins
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large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40,000 km (25,000 mi) horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movements. It has 452 volcanoes and is home to over 75% of the world's active and dormant volcanoes. It is sometimes called the circum-Pacific belt or the circum-Pacific seismic belt. About 90% of the world's earthquakes and 81% of the world's largest
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found. He wondered why there was so little sediment deposited at the bottom of the seafloor when the ocean is over 4 billion years old. He explained new crust was created at the great global rift and crust was getting pushed under the continental plate and magma rose up and created the new crust. The initial idea came from when he discovered there were mountains with flat tops under the ocean while aboard the ship USS Cape
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Week One Review Questions Student’s Name GLG 101 Due Date Teacher’s NAme Chapter 1: Critical and Creative Thinking Questions 3 & 5 3. How do you think the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions, or great earthquakes? Uniformitarianism is a theory that states that past events are happening today and will happen in the future. What we do today has an effect on the geologic formation and structure and
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Study Guide: Midterm Exam Concentrate your studies in the following areas. Questions for the Midterm Exam will come principally from this material. Lutgens and Tarbuck Textbook: Minerals (Chapter 1) * Know the definition of a mineral. a solid inorganic substance of natural occurrence * Know the basic definition of a rock. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans * Know how
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the magma pushed its way through, flowing lava continuously and rising above sea level over 900 meters. The relationship between volcanoes and the plate tectonic theory is that plate tectonics is where plates may pull apart, slide next to each other or collide moving at different speeds and potentially causing earthquakes. Volcanos form when two plate boundaries collide in either a convergent or divergent margin. Stromboli volcano brings about tourism and high-priced real estate market for the island
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volcanoes arise from a subduction zone occurring at the boundary of the Pacific plate, the Pacific and Philippine plates slide under the Eurasian and North American plates and melt when they enter the mantle. Some of this molten material rises as magma and causes volcanic eruptions at the surface. * Japan is located near major tectonic plate boundaries. The subducting plates, being deeper than the Eurasian plate, pulled Japan eastward, opening the Sea of Japan. Today the Japanese archipelago
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3rd Qt. Redemption Test 1. Which element, found in both biotite mica and muscovite mica, makes up the greatest percent by volume of Earth's crust? A) nitrogen C) potassium B) oxygen D) silicon 2. Which mineral can be found in all samples of rhyolite and andesite? A) pyroxene C) biotite B) quartz D) potassium feldspar 3. Base your answer to the following question on the map and cross section below. The shaded areas on the map represent regions of the United States that have
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In the last 150 years, major volcanic eruptions have affected the land and people around them. In, 2002, Mount Etna erupted. Located on the island of Sicily in the Mediterranean Sea, Mount Etna is Europe’s largest volcano. Over the last 2,500 years, it has erupted a lot. The Greeks believed that Mount Etna was one home of Hephaestus, the Greeks god of fire. “Beneath the volcano to forge where Hephaestus made beautiful metal object for the other greeks god.” Mount Etna is 11,000 feet high, it
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1) Describe the bathymetry of the ocean seafloor and how the features relate to plate tectonics. The bathymetry of the ocean floor is the shape of the ocean floor. On the ocean floor there are also anomalies, gravity and magnetism in different areas of the ocean. “We know these things because it has been mapped out using a process called sonar, Sound Navigation and Ranging. This is done by creating sound waves from a ship at the surface that bounce down off of the seafloor and then come back up
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