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Marianas trench
Marianas trench Marianas trough, or Marianas deep , elongated depression on the Pacific Ocean floor, 210 mi (338 km) SW of Guam. It is the deepest known depression on the earth's surface, having been measured by various means at 35,760–36,089 ft (10,900–11,000 m) below sea level at Challenger Deep. A U.S. navy bathyscape reached its bottom in 1960. A 1995 Japanese probe made what is probably the most accurate measurement of its depth (35,798.6 ft/10,911.5 m), and in 2009 a U.S. robotic vessel explored the seafloor of Challenger Deep. |
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"Marianas trench." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "Marianas trench." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1E1-Marianas.html "Marianas trench." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Marianas.html |
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Marianas Trench
Marianas Trench The oceanic trench, about 11 km deep, which marks the destructive margin between the Pacific and Philippine Plates.
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Cite this article
MICHAEL ALLABY. "Marianas Trench." A Dictionary of Ecology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "Marianas Trench." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O14-MarianasTrench.html MICHAEL ALLABY. "Marianas Trench." A Dictionary of Ecology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-MarianasTrench.html |
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