Oceans and Continents

The Columbia Encyclopedia, 6th ed. A Dictionary of Ecology Further reading

Marianas trench

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

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

A Dictionary of Ecology | 2004 | | Copyright

Marianas Trench The oceanic trench, about 11 km deep, which marks the destructive margin between the Pacific and Philippine Plates.

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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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Free newspaper and magazine articles

	Marianas, Philippine trenches have huge natural gas deposit. News Wire article from: PAC - Pacific Islands Broadcasting Association; 10/31/2003
	Squeezed to the extreme.(piezophiles in the Marianas Trench) Magazine article from: The Evening Standard (London, England); 11/1/2003
	Guam fishermen say no to Marianas monument. News Wire article from: PAC - Pacific Islands Broadcasting Association; 10/23/2008