Director of Earthquake Preparedness, Los Angeles FOR IMMEDIATE RELEASE 05th September 2012 Earthquake Preparedness Los Angeles, California – Earthquakes usually occur without any warning given to public and has the capability of enormous destruction which could lead to severe loss of lives and huge destructions. Natural disasters like earthquakes-preparing ahead of time can help us to save lives, protect our property and increase the pace of recovery. There are few simple steps that should
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GLG 101 - Week 6 Assignment: Metamorphic Rocks Lab PART 2/2 (UOP) FOR MORE CLASSES VISIT www.glg101tutorial.com Resources: pp. 108–116 of Geoscience Laboratory and Appendixes K & L Identify and classify the rock examples in Appendix K. Answer the Appendix L questions from your lab book. Write your responses in Appendix K. Complete All of Appendix K & L. Post completed Appendix K & L in the individual forum. Due day 7. ================================================= GLG 101 Assignment
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Chapter 2: Plate Tectonics and Physical Hazards Earth Structure - Inner Core - Solid, High Temperature, 90% Iron, 1300 km thick - Outer Core - Liquid, similar to inner core, 2000 km thick, density of 10.7 g/cm3 - Mantle - Solid, iron & magnesium-rich silicate rocks, 3000 km thick, density of 4.5 g/cm3 -Lithosphere - Outer rind of the Earth - made up of tectonic plates - Asthenosphere - Below lithosphere - Hot layer of weak rocks - Crust - Outer rock layer of Earth, density
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types of tectonic plate margins, the meeting place of one plate with another. The four plates are destructive, constructive, collision, and conservative. Plates are constantly moving or changing position. The divergent boundaries are where new crust is generated as the plates pull away from each other. The convergent boundaries are where the crust is destroyed as one plate drives under another. The Transform boundaries are where the crust is neither produced nor destroyed as the plates slide horizontally
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withmagma rising from the mantle(in red) In geology, the places known as hotspots or hot spots are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. They may be on, near to, or far from tectonic plate boundaries. Currently, there are two hypotheses that attempt to explain their origins. One suggests that they are due to hot mantle plumes that rise as thermal diapirs from the core-mantle boundary.[1] An alternative hypothesis postulates that
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Earth's surface. Mountains can be formed in different ways that involve internal (inside) or external (outside) natural forces. The movement of tectonic plates is called plate tectonics. Plate tectonics is an internal natural force because it happens inside the Earth. When tectonic plates collide, they raise the Earth's crust. As mentioned before, tectonic plates move very slowly, so it takes many millions of years to build a mountain. Mountains can also be formed by external natural forces like rain
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Where are most earthquakes in Europe? The major concentrations of the world’s earthquakes occur in countries, which are near the Ring of Fire in the Pacific Ocean. The most earthquakes in Europe occur in the collision zone of Eurasian and African plates. The Mediterranean regions where countries like Turkey, Greece, and Italy are located are where the majority of earthquakes in Europe occur. * What undersea hot springs were discovered in 1977? What is remarkable about these (and other) undersea
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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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Madrid Fault) which all lying on the North American Tectonic Plate, a massive irregularly shaped slab of solid rock which is approximately 8000 kilometers or almost 5000 miles wide (Trefil and Hazen, 2011). Tectonic plates are in constant motion as they interact along their margins to form mountain belts, earthquakes and volcanoes. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest. Living in Cincinnati, Ohio
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earthquake, 2011. Describe the tectonic setting shown in Figure 1a and relate the intensity of the Tohoku earthquake shown in Figure 1b to that setting. Describe the characteristics, and explain the formation, of deep sea trenches and island arcs. Deep sea trenches | Island arcs | * When two oceanic plates or an oceanic and continental converge, usually the more dense crust is subducted under the less dense and lighter crust * The downwarping process of the plate forms a very deep part of the
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