Mariana trench

Is there anywhere as deep or as majestic as the How much do you know about the Mariana Trench? Do you know how it got its name? Have you seen movies on the big screen based around its incredible waters? With so much of the world’s underwater mysteries going unexplored, the Mariana really does seem like one of the best in-roads to finding out more about the weird and watery 1. The Mariana Trench is a big ocean player The Mariana Trench is the deepest trench on 2. The Mariana Trench has an appropriate name The trench is located 124 miles (200 kilometers) from the Mariana Islands in 3. It’s name was inspired by royalty The islands were named after Queen Mariana of 4. The Mariana Trench is astonishingly deep The recorded depth of the trench so far is 36,037 feet (10,984 meters). Challenger Deep’s sonar map 5. There’s a fabled depth point to the Mariana Trench ‘Challenger Deep’ is the name of the area where the trench is considered to be its deepest. 6. The Mariana Trench is – seriously – overwhelmingly huge The trench is approximately 1,580 miles long (2,550 kilometers), with a width of 43 miles (69 kilometers). 7. The Mariana Trench has an unexpected shape The trench takes the form of a ‘crescent’ in shape, adjacent to the islands on the Mariana Plate. Two tectonic plates are found at this site – the larger Pacific Plate is under the Mariana. 8. We can thank the plates for other geographical features The movement of the two plates was instrumental in creating the volcanic ‘Ma...

Trieste shortly after her purchase by the US Navy in 1958 History Name Trieste Builder Acciaierie Terni/ Launched 1 August 1953 Fate Sold to the United States Navy, 1958 Name Trieste Acquired 1958 Decommissioned 1966 Reclassified DSV-0, 1 June 1971 Status Preserved as an exhibit in the General characteristics Type Displacement 50 Length 59ft 6in (18.14m) Beam 11ft 6in (3.51m) Draft 18ft 6in (5.64m) Complement Two Trieste is a Swiss-designed, Italian-built deep-diving research Design [ ] Trieste consisted of a float chamber filled with Trieste was designed by the Swiss scientist Auguste Piccard and originally built in Italy. His pressure sphere, composed of two sections, was built by Acciaierie Trieste was launched on 26 August 1953 into the Trieste was operated by the Trieste was purchased by the [ citation needed] At the time of Trieste was more than 15m (50ft) long. The majority of this was a series of floats filled with 85,000 litres (22,000USgal) of The pressure sphere provided just enough room for two people. It provided completely independent life support, with a closed-circuit Observation of the sea outside the craft was conducted directly by eye, via a single, very tapered, cone-shaped block of Nine metric tons (20,000 pounds) of magnetic Transported to the Trieste was modified extensively by the Americans, and then used in a series of deep-submergence tests in the Pacific Ocean during the next few years, culminating in the dive to the bottom of the Challenger Deep...

Ocean trenches are long, narrow depressions on the seafloor. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth. Ocean trenches are found in every ocean basin on the planet, although the deepest ocean trenches ring the Pacific as part of the so-cal led “ Ring of Fire” that also includes active volcanoes and earthquake zones. Ocean trenches are a result of tectonic activity, which describes the movement of the Earth’s lithosphere. In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, denselitho sphere melts or slides beneath less-denselithosphere in a process called subduction, creating a trench. Ocean trenches occupy the deepest layer of the ocean, the hadalpelagic zone. The intense pressure, lack of sunlight, and frigid temperatures of the hadalpelagic zone make ocean trenches some of the most unique habitats on Earth. How Ocean Trenches Form Subduction ZonesWhen the leading edge of a densetectonic plate meets the leading edge of a less-dense plate, the denser plate bends downward. This place where the denser plate subducts is called a subduction zone. Oceanic subduction zones almost always feature a small hill preceding the ocean trench itself. This hill, called the outer trench swell, marks the region where the subducting plate begins to buckle and fall beneath the more buoyant plate. Some ocean trenches are formed by subduction ...