Chapter 1: Geology is the science that studies the history of Earth and its life. Anthropogenic (human generated) activities such as fossil fuel combustion impacting Earth has led to the study of Earth as a series of systems (series of components that interact to produce a larger‚ more complex whole). Geology is the science that examines the evolution of the natural processes on Earth‚ the evolution of life and the evolution of these interactions and how they caused the earth to evolve towards its
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David Kelleher Geophysicists Discover Slippery Secret Of Weaker Underwater Earthquakes http://www.sciencedaily.com/videos/2007/ 1007-underwater_earthquakes.htm In December 2004‚ an underwater earthquake triggered a string of tsunamis along the Indian Ocean with devastating effects. Now‚ scientists have found ways nature is preventing some deep ocean earthquakes and save lives. Strong underwater earthquakes start off silent -- until their tsunami waves roar on shore‚ destroying property and
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Geo assessment Mt Etna An eruption begins when pressure on a magma chamber forces magma up through the conduit and out the volcano’s vents. When the magma chamber has been completely filled‚ the pressure in the pipe will build up very high resulting in an explosion. When magma reaches earth’s surface it is called lava. It may pour out in gentle streams called lava flows or erupt violently into the air. Rocks ripped loose from the inside of the volcano or torn apart by the gas may be shot into the
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aftershocks are expected to follow in the coming days. The focus occurred at a depth of 13 km (a shallow earthquake (focus at a depth of 0-70km)). The epicenter was near the town of Léogâne. The earthquake is blamed on the movement of the Caribbean tectonic plate eastward along the Enriquillo-Plantian Garden strike-slip fault system.
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approximately 150 miles southward crossing five state lines. West coast fault zones are called transform faults in contrast‚ the New Madrid fault is called an intraplate zone. This means that there is a weak spot in the middle of the North American Plate with a series of faults in the Earth’s crust and is called the Reelfoot Rift‚ named after Reelfoot Lake in Tennessee‚ that was formed during the quake‚ (The Encyclopedia of Arkansas History & Culture). It wasn’t until 1909 that seismographs
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volcano Lab Questions….(watch the intro) 1. What is a volcano? Pressure volves that release energy from deep within the earth Press enter the following areas…(located in the lower right of the screen) Tectonic plates 1. How are they related to volcanoes? Volcanoes are found on plate boundaries 2. What one(s) are the most active. The ones along the ring of fire Ring of Fire 1. What is it? One of the world’s most volcanic zones Layers within Earth 1. What layers
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Oceanography Test 1 Study Guide Chapter 1: Knowing the Ocean World An Ocean World • Ocean creatures provide 2% of humanity’s food • 1/3 of the world’s petroleum and natural gas are pumped from beneath the ocean floor • ~ 71% world is covered by water • Ocean – vast body of saline water that occupies the depressions of the earth’s surface • 97% of the water on or near the earth’s surface is contained in the ocean; less than 3% is held in land ice‚ groundwater‚ and freshwater
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General Study Guide: Test 1 Garrison 8th Edition Go over all powerpoint slides and concepts discussed. Chapter 1 Origins 1. Ages: Universe‚ Earth‚ Ocean 2. Scientific method 3. Big Bang Theory – universe is expanding - two major sources of evidence 4. Hubble’s Law 5. What is a light year and why do we use it to measure distance in the universe? 6. What are 3 major processes that formed the solar system and planets? 7. What is most abundant element in solar nebulae? 8. What are
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warning sign of an impending tsunami? a. Winds suddenly change direction b. The sky suddenly clears c. Seawater suddenly retreats from the shore d. All of the above ANSWERS 1. d Tsunamis are usually generated by undersea earthquakes at tectonic plate boundaries‚ but they can also be triggered by underwater landslides‚ volcanic eruptions‚ or even a giant meteor impact with the ocean. 2. b An undersea earthquake creates a tsunami only if it is of sufficient force and there
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Introduction: I have decided to answer this question‚ as the extinction of dinosaurs has interested me since I was very young and I thought that by answering it‚ I could learn a lot more about what happened and broaden my knowledge of the subject! Answering about the dinosaurs would also keep me interested in the topic as I am working on it and I do not fully understand many parts so as I work on the case study I can learn more and stop myself from becoming bored. The subject has no concrete answer
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