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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.
Unlike most amphipods, which are approximately 2.5 cm (1 inch) long, this species reaches up to 34 cm (13 inches) in length, and is milky-white. [ 6 ] The second-deepest fish, the hadal snailfish Notoliparis kermadecensis , is endemic to the trench and occupies a very limited depth range, 6,472 to 7,561 m (21,234 to 24,806 ft).
Contour map of Gulf of Mexico as sounded by the C&GS Steamer Blake between 1873 and 1875. Over 3,000 soundings went into this chart, most of the deep water soundings taken by the Sigsbee Sounding Machine. This was the first realistic bathymetric map of any oceanic basin. In: "Three Cruises of the BLAKE" by Alexander Agassiz, 1888. P. 102.
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 .
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 ...
All five men on board the missing Titan submersible were declared dead after it was found that the craft imploded near the site of the shipwreck, authorities announced Thursday.. OceanGate ...
What's more, Granot thinks the ancient slab might be a remnant of Earth's long-lost Tethys Sea (or Ocean). RELATED: Deep ocean images from the Mariana Trench "[W]e don't have intact oceanic crust ...
Location map Puerto Rico Trench—United States Geological Survey Perspective view of the sea floor of the Atlantic Ocean and the Caribbean Sea. The Lesser Antilles are on the lower left side of the view and Florida is on the upper right. The purple sea floor at the center of the view is the Puerto Rico Trench, the deepest part of the Atlantic ...