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Mariana Trench : The Deepest Part of the World's Oceans
The Mariana Trench maximum-known depth about 10,994 metres
The Mariana Trench located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres long with an average width of 69 kilometres . The Mariana Trench maximum-known depth about 10,994 metres (36,070 ft) at a small slot-shaped valley in its floor known as the 'Challenger Deep', at its southern end, although some unrepeated measurements place the deepest portion at 11,034 metres (36,201 ft).
The Mariana Trench located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres long with an average width of 69 kilometres . The Mariana Trench maximum-known depth about 10,994 metres (36,070 ft) at a small slot-shaped valley in its floor known as the 'Challenger Deep', at its southern end, although some unrepeated measurements place the deepest portion at 11,034 metres (36,201 ft).
Pressure at the bottom of Mariana Trench can reach up to 108 MegaPascal !
At the bottom of the trench the water column above exerts a pressure of 108 MegaPascal (1,086 bars /15,750 psi), more than 1,000 times the standard atmospheric pressure at sea level. At this pressure, the density of water is increased by 4.96%, so that 95 litres of water under the pressure of the Challenger Deep would contain the same mass as 100 litres at the surface. The temperature at the bottom is 1 to 4 °C (34 to 39 °F).
At the bottom of the trench the water column above exerts a pressure of 108 MegaPascal (1,086 bars /15,750 psi), more than 1,000 times the standard atmospheric pressure at sea level. At this pressure, the density of water is increased by 4.96%, so that 95 litres of water under the pressure of the Challenger Deep would contain the same mass as 100 litres at the surface. The temperature at the bottom is 1 to 4 °C (34 to 39 °F).
The temperature at the bottom of Mariana Trench is about 1 to 4 °C (34 to 39 °F).
The trench is not the part of the seafloor closest to the center of the Earth. This is because the Earth is not a perfect sphere; its radius is about 25 kilometres (16 mi) less at the poles than at the equator. As a result, parts of the Arctic Ocean seabed are at least 13 kilometres (8.1 mi) closer to the Earth's center than the Challenger Deep seafloor.
The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere
With a depth of 10,898 to 10,916 m (35,755 to 35,814 ft) by direct measurement from submersibles, and slightly more by sonar bathymetry. The closest land to the Challenger Deep is Fais Island (one of the outer islands of Yap), 287 km (178 mi) southwest, and Guam, 304 km (189 mi) to the northeast. It is located in the ocean territory of the Federated States of Micronesia, 1.6 km (1 mi) from its border with ocean territory associated with Guam.
The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere
With a depth of 10,898 to 10,916 m (35,755 to 35,814 ft) by direct measurement from submersibles, and slightly more by sonar bathymetry. The closest land to the Challenger Deep is Fais Island (one of the outer islands of Yap), 287 km (178 mi) southwest, and Guam, 304 km (189 mi) to the northeast. It is located in the ocean territory of the Federated States of Micronesia, 1.6 km (1 mi) from its border with ocean territory associated with Guam.
