because the planet’s crust is broken into 17 major‚ rigid tectonic plates that float on a hotter‚ softer layer in the Earth’s mantle.[1] Therefore‚ on Earth‚ volcanoes are generally found where tectonic plates are diverging or converging. For example‚ a mid-oceanic ridge‚ such as the Mid-Atlantic Ridge‚ has volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates coming together. Volcanoes can also form where there is stretching
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Prince William Sound‚ 75 miles east of Anchorage. This earthquake was and still is the second larges earthquake ever recorded (Christensen). The plates involved In this major earthquake were the Pacific plate and North American plate. This subduction zone is know as Aleutian-Alaska megathrust zone (Sokolowski). This region was known for its active plate tectonics‚ but this earthquake did come as a surprise to the public and scientists in the area. About 200-250‚000 kilometers squared of the earths crust
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place to visit. The spectacular island is the second largest in Europe and located between the Greenland Sea and the Atlantic Ocean. It sits on a constructive plate boundary; the violent tug of war between the two plates causes Iceland to gradually get bigger. Iceland is the most volcanically active place in the world‚ due to tectonic plate activity. Disruptive eruptions occur about every five years. The most recent eruption of Eyjafjallajokull in April 2010‚ caused havoc both internationally and
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Theory of Continental Drift The seven continents used to be one giant continent named Pangea. They spread apart and became what the continents are today. The shapes of the continents line up‚ the fossils line up with how the continents‚ the rock formations on both sides of the Atlantic line up with the fossils and coastlines‚ and climatic evidence proves the Theory of Continental Drift. The first piece of evidence for Continental Drift is the shapes of the continents. All of the continents fit
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As www.marinebio.net states‚ Wailea-Makena‚ Hawaii‚ East Maui County was caused by a hotspot 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
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the due date for full credit. (20 points) 1. The diagram below shows three plates (A‚ B‚ C). Plate B is denser than Plates A and C. A continent is shown on Plate C‚ along with seafloor. The other plates are entirely seafloor. The arrows show the directions that the plates are moving. Complete the table. First‚ note the geologic feature(s) that corresponds to each number on the map. Then explain in detail how the plate movements at each location account for the features at that location. Answer:
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shifting plates would collide‚ encounter resistance from one another‚ compress‚ then fold upwards to form mountains near the edges of the plates. Eons ago India and an ancient ocean called the Tethys Ocean sat on a tectonic plate. This place was shifting northward towards Asia at a rate of 10 centimeters per year. The ocean got progressively smaller unit about 55 million years ago when it collided with Asia. There was no more ocean left of lubricate the subduction and so the plates formed the
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deposition of the minerals from solution‚ and 4) the requisite chemical reactions that contribute to that deposition (Bateman‚ 1967). Before any of these factors come into play‚ however‚ there are tectonic processes that must happen to set the stage for development of copper porphyry deposits. Subducting tectonic settings are important for porphyry ore formation. While porphyritic deposits are found worldwide‚ it is important to note that the majority of these deposits are found near or at mantle plumes
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In the Bible‚ there are many stories and events that take place. Most people in the world believe that these are just stories or myths from ancient times. Christians believe that these are more than just tales; they believe that that the Bible is fact. The majority of people in the world who have had an education believe that a major flood happened that have shaped the world into what it is today. The evidence of the flood can prove that the biblical story is indeed fact. In Genesis‚ God explains
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Haiti Earthquake The last major earthquake to hit Haiti prior to the 2010 was in 1984. On the 12th of January 2010 the small Caribbean country of Haiti was hit by a catastrophic earthquake of 7.0 magnitude. The earthquake struck on the afternoon of the 12th of January at 4:57pm and hit south-west of the Haitian capital of Port-au-Prince killing 316‚000 and affecting millions of residents. 1.5 million people were displaced and approximately 250‚000 residences and 30‚000 commercial buildings were
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