Mariana Trench


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Mariana Trench

or

Marianas Trench,

(mâr'ēăn`əz), 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 since the 1950s at 35,760–36,201 ft (10,900–11,034 m) below sea level at Challenger Deep, with a 2010 measurement by the U.S. Center for Coastal and Ocean Mapping at 36,070 ft (10,994 m). The Trieste, a U.S. navy bathyscape crewed by Swiss oceanographyer Jacques Piccard and U.S. Navy Lieutenant Donald Walsh, reached its bottom in 1960. In 2012 James CameronCameron, James,
1954–, Canadian motion-picture director and screenwriter, b. Kapuskasing, Ont. Beginning as a screenwriter and then art director, he first directed in 1981.
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 became the third person to descend to the Deep, in the submersible Deepsea Challenger. Victor VescovoVescovo, Victor Lance,
1966–, American private equity investor and adventurer, b. Dallas, Tex., M.B.A. Harvard, 1994. He was a principal at Lehman Brothers (1991–92), a senior manager at Bain and Co.
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 made the dive in 2019 in the submersible DSV Limiting Factor. Robotic vessels have also surveyed the trench and deep. The Mariana Trench Marine National Monument, 96,714 sq mi (250,488 sq km), was established in 2009 to protect the submerged lands and waters around the trench and around the three northernmost Mariana Islands and 21 sites with undersea mud volcanoes and hydrothermal vents.
References in periodicals archive ?
Caption: Packaging, plastic bottles, plastic chairs--which of these might we find at the foot of the Mariana trench in 30 years?
In this photo provided by Atlantic Productions for Discovery Channel, Victor Vescovo emerges from his submersible 'Limiting Factor' after a successful dive to the deepest known point in the Mariana Trench, April 28, 2019.
In the last three weeks, the expedition has made four dives in the Mariana Trench in his submarine, "DSV Limiting Factor," collecting biological and rock samples.
Per the Chinese news agency Xinhua, the tests were conducted on 13 December in the vicinity of the Mariana Trench by a team of scientists aboard the research vessel Shen Ko.
During a dive in the Mariana Trench, a submersible piloted by Lori (Jessica McNamee), Toshi (Masi Oka) and Wall (Olafur Darri Olafsson) is attacked by a 75ft long megalodon shark.
The Meg, 12, PS19.99 During a dive in the Mariana Trench, the Origin submersible piloted by Lori (Jessica McNamee), Toshi (Masi Oka) and Wall (Olafur Darri Olafsson) is attacked by a 75ft-long megalodon shark.
The findings showed that loss of sea water is due to the slow-motion collisions of tectonic plates under Mariana Trench -- deepest ocean trench in the world.
Plastic pollution has been detected in the deepest parts of the word's oceans, including the bottom of the Mariana Trench in the Pacific.
Then a mate of mine, who knows about these things, told me that 200km off the Philippines is the deepest point in the ocean the Mariana Trench.
Jinping also visited the Institute of Deep-sea Science and Engineering under the Chinese Academy of Sciences on Thursday and learned about China's seabed exploration in the Mariana Trench and examined deep-sea research equipment.
Scientists also found high levels of carcinogenic (cancer causing) pollutants in the Mariana Trench, a result of pesticide use in nearby areas.