than on Earth‚ because Mars ’ distance from the sun varies by 20 percent in its orbit around the sun every two years. (Mars Science‚ 2000) Mars has many of the kinds of surface features that are common on Earth. These include plains‚ canyons‚ and volcanoes. Overall‚ craters occur throughout the surface of Mars‚ while
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or an extra hot plume of molten rock. This happens when heat rises as a thermal cloud from inside of the Earth. Heat and pressure at the bottom of the tectonic plate forces magma to form which then rises through cracks and erupts to form volcanoes. As volcanoes move away from a hotspot‚ they start to erode and become inactive. Maui is the third oldest volcano of the main Hawaiian islands and could still erupt one more time. Haleakalā or the East Maui Volcano is also a shield volcano or a broad‚ domed
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that every time the metallic elements align themselves in the opposite direction. In the case of constructive plate boundary plate tectonic theory has helped our understanding as we can now determine that at constructive pate boundaries fissure volcanoes are more common here‚ therefore suggesting the nature of a potential eruption may not be as destructive as a
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molten rock appears on the Earth’s surface are volcanoes. * Roughly 3.2 million square kilometers (1.2 million square miles) in area‚ the Caribbean Plate borders the North American Plate‚ the South American Plate‚ the Nazca Plate and the Cocos Plate. These borders are regions of intense seismic activity‚ including frequent earthquakes‚ occasional tsunamis and volcanic eruptions. * Plate tectonics give rise to fold mountains‚ earthquakes‚ volcanoes‚ island arcs and ocean ridges. An example
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Guatemala J.D. Corbett found himself in Guatemala on several occasions. Filled with rainforests‚ volcanoes‚ as well as the Pacific and Atlantic coastlines‚ J.D. remembers the country being one of the most beautiful areas he ever traveled to. He reminisces not only of Guatemala’s natural beauty‚ but also its cultural diversity. While he was there‚ he found the timeless cultural heritage of the ancient Mayans‚ and architecture left by the Spanish conquistadors; all thriving in one country. He also
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apart‚ near rift valleys‚ on subduction zones where the most violent activity takes place and over hot spots which have given rise to the Hawaiian islands. Magma is generated at most plate boundaries‚ and this magma rises to the surface to form volcanoes. The mobility of crust also causes earthquakes. When plates collide or slide past each other‚ it leads to generation and accumulation of pressure (strain) which when released causes earthquakes. The point at which this pressure releases occurs within
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GROUND WATER THE WATER/HYDROLOGIC CYCLE * Composed of evaporation from the oceans * Movements of moist air inland * Condensation and precipitation * Run-off on the surface or sub-surface back to the ocean * Plus additional minor cycles * Involves the exchange of water with the atmosphere‚ the earth‚ and the different water forms * Done when clouds gain water vapor from the various water forms * Evaporation – process where water turns into steam or gas when the
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of several different pieces‚ or “plates” that float on a ductile mantle‚ kind of like floating on water. These plates collide‚ split apart and slide past each other. When this type of activity occurs it can cause volcanoes to erupt. There are different types of eruptions from volcanoes. The type of eruption depends on the magma that is located inside the Earth. There are Hawaain eruptions which consist of a runny lava that flows with ease from the volcano. There are Strombolian eruptions that eject
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“EVALUATE HOW PLATE TECTONICS THEORY HELPS OUR UNDERSTANDING OF THE DISTRIBUTON OF SEISMIC AND VOLCANIC EVENTS” In this essay I am going to look in detail at plate tectonic theory and how it can be used to explain seismic and volcanic events worldwide. However‚ I will also look at other potential causes of these events‚ and some evidence that does not follow the theory that all these events are caused by plate boundaries. I am going to look at a range of case studies from differing scales
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shrinking pumice. This quest would eventually change the way scientists think about volcanoes-forever. One of the things (out of many) that he and his colleagues found out while on the road was that not only the rock was shrinking‚ the pores that make up the rock were shrinking as well. They think that this was due to the heating of the rock‚ and the molten rock’s surface tension. What the scientist found was how some volcanoes function on the inside. In past years‚ volcanologists believed that flowing lava
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