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Deep Ocean Trenches - College Paper

Deep Ocean Trenches

A trench is any long, narrow, steep-sided depression in the ocean bottom. The deepest known depression of this kind is
the Mariana Trench, which lies east of the Mariana Islands in the western North Pacific Ocean . Of the Earth's 20 major trenches, 17 are found in the Pacific. The only Atlantic trenches are the Puerto Rico Trench north of the Caribbean islands and the South Sandwich Trench east of Drake Passage between South America and Antarctica. The single major Indian Ocean trench is the Java Trench south of Indonesia.
The cross sections of trenches generally are V-shaped with steeper landward sides. Geophysical data provide important
clues concerning the origin of trenches. No ...

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material of the continents.
Deep trench in the sea bed indicating the presence of a destructive margin (produced by the movements of plate tectonics). The dragging downwards of one plate of the lithosphere beneath another means that the ocean floor is pulled down. Ocean trenches are found around the edge of the Pacific Ocean and the northeastern Indian Ocean; minor ones occur in the Caribbean and near the Falkland Islands.
Ocean trenches represent the deepest parts of the ocean floor, the deepest being the Mariana Trench which has a depth of
11,034 m/36,201 ft. At depths of below 6 km/3.6 mi there is no light and very high pressure; ocean trenches are inhabited by
crustaceans, coelenterates (for example, sea anemones), polychaetes (a type of worm), molluscs, and echinoderms.

Mariana Trench (depression in the floor of the Pacific Ocean), the deepest seafloor depression in the world. It is located just east of the Mariana Islands in the western part of the ocean basin. The ...

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Deep Ocean Trenches. (2006, August 10). Retrieved November 23, 2024, from http://www.essayworld.com/essays/Deep-Ocean-Trenches/50523

"Deep Ocean Trenches." Essayworld.com. Essayworld.com, 10 Aug. 2006. Web. 23 Nov. 2024. <http://www.essayworld.com/essays/Deep-Ocean-Trenches/50523>

"Deep Ocean Trenches." Essayworld.com. August 10, 2006. Accessed November 23, 2024. http://www.essayworld.com/essays/Deep-Ocean-Trenches/50523.

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PAPER DETAILS

Added: 8/10/2006 02:16:44 PM
Category: Science & Nature
Type: Premium Paper
Words: 926
Pages: 4

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