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The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench, which itself is an unusually deep feature in the ocean floor. The Challenger Deep consists of three basins, each 6 to 10 km (3.7 to 6.2 mi) long, 2 km (1.2 mi) wide, and over 10,850 m (35,597 ft) in depth ...
The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width.
Sonar mapping of the Challenger Deep by the DSSV Pressure Drop employing a Kongsberg SIMRAD EM124 multibeam echosounder system (26 April–4 May 2019). Challenger Deep (CD) is the deepest known point in the Earth's seabed hydrosphere, a slot-shaped valley in the floor of Mariana Trench, with depths exceeding 10,900 meters. [1]
In 2020, Mr Walsh descended nearly 11,000m beneath the ocean surface to Challenger Deep in the Mariana Trench, 60 years after his father Don Walsh and French explorer Jacques Piccard became the ...
The bathymetry of the ocean was poorly known prior to the Challenger expedition of 1872–1876, [12] which took 492 soundings of the deep ocean. [13] At station #225, the expedition discovered Challenger Deep , [ 14 ] now known to be the southern end of the Mariana Trench .
Trieste departed San Diego on 5 October 1959 for Guam aboard the freighter Santa Maria to participate in Project Nekton, a series of very deep dives in the Mariana Trench. On 23 January 1960, it reached the ocean floor in the Challenger Deep (the deepest southern part of the Mariana Trench), carrying Jacques Piccard and Don Walsh. [13]
Challenger Deep: Izu–Bonin–Mariana Arc, Mariana Trench, Pacific Ocean 11,034 36,197 6.86 2 Tonga Trench: Pacific Ocean 10,882 35,702 6.76 3 Emden Deep: Philippine Trench, Pacific Ocean 10,545 34,580 6.54 4 Kuril–Kamchatka Trench: Pacific Ocean 10,542 34,449 6.52 5 Kermadec Trench: Pacific Ocean 10,047 32,963 6.24 6 Izu–Ogasawara Trench ...
Its directly measured depth of 10,714 m (35,151 ft) is third only to the Challenger Deep and Horizon Deep, currently the deepest known directly measured places in the ocean. [ 3 ] [ 4 ] [ 5 ] It lies along the Mariana Trench , 200 kilometers to the east of the Challenger Deep and 145 km south of Guam .