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Marianas trench
Book article from: The Columbia Encyclopedia, Sixth Edition
Marianas trough, or Marianas deep , elongated depression on the Pacific Ocean floor, 210 mi (338 km) SW of Guam. It is the deepest (35,798.6 ft/10,911.5 m at the Challenger Deep) known depression on the earth's surface. A U.S. navy bathyscape...
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trench
Book article from: The Oxford Companion to Ships and the Sea
...Offshore lies a series of trenches. The older the ocean crust, the deeper the trench, because the crust is colder...The deepest of all is the Marianas Trench. Scientists aboard HMS Challenger...deep. The seabed of each trench is inhabited by a ...
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Mariana Islands
Book article from: World Encyclopedia
...over 800km (500mi) of the Marianas Trench, c. 2400km (1500mi) e of...the islands of the Northern Marianas: Saipan, Tinian, Rota, Pagan...islands were renamed the Marianas in 1668. The Northern Marianas came under German control...
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Jacques Piccard
Encyclopedia entry from: Encyclopedia of World Biography
...Piccard's father to the deepest spot on earth, the Marianas Trench in the western Pacific, in a record seven-mile descent...began a descent to 36, 000 feet in a chasm of the Marianas Trench known as Challenger Deep. The bathyscaphe carried...
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Challenger, HMS
Book article from: The Oxford Companion to Ships and the Sea
...took hundreds of soundings , including the first one of the Marianas Trench , also making the discovery that there were mid-ocean ridges...research ship of the same name were able to sound the bottom of the Marianas Trench for the first time.
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bathyscaphe
Book article from: The Oxford Companion to Ships and the Sea
...for that of a cylindrical tank beneath which was a spherical observation chamber. In 1958 this was acquired by the US Navy and, after extensive reconstruction, touched bottom at 10,915 metres (35,812 ft) in the Marianas Trench on 25 January 1960.
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Auguste Piccard
Book article from: The Columbia Encyclopedia, Sixth Edition
...design. In 1960 Jacques Piccard, with U.S. Navy Lieutenant Donald Walsh, descended to 35,800 ft (10,912 m) in the Marianas Trench . Jacques's son Jacques Piccard, 1958-, is also a balloonist; in Mar., 1999, he and Briton Brian Jones became the...
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island arcs
Book article from: The Oxford Companion to the Earth
...some deeper root; and, since all surface evidence in trenches and island arcs shows that they are under tension, it...progressively deeper as one went from the ocean side of the trench to the volcanic arc, that the idea of a relatively simple steeply dipping thrust plane extending from near the trench to ...
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underwater vehicles
Book article from: The Oxford Companion to Ships and the Sea
...vehicles, built the bathyscaphe Trieste , in which his son Jacques, together with Don Walsh, dived to the bottom of the Marianas Trench in January 1960; an achievement repeated in 1995 by a Japanese ROV. In the early 1960s deep submersibles, often referred...
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oceans
Book article from: The Oxford Companion to Ships and the Sea
...continents. Here occur the deepest depths in trenches of over 6,000 metres (20,000 ft). The...depth of 11,015 metres (36,130 ft) in the Marianas Trench is the deepest anywhere. Its total volume...metres (31,350 ft) is in the Puerto Rico Trench. It is the only ocean with a deep-water...
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