Search results
Oceanic trenches are prominent, long, narrow topographic depressions of the ocean floor. They are typically 50 to 100 kilometers (30 to 60 mi) wide and 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor, but can be thousands of kilometers in length.
Apr 25, 2017 · What Is An Oceanic Trench? An oceanic trench is a long and narrow depression in the ocean floor. These trenches are considered the deepest part of the ocean floor, occurring at the boundary between convergent plates and lithospheric plates.
Nov 29, 2023 · noun. area reaching from the sediment of a body of water to its surface. 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 steep depressions exceeding 6,000 meters in depth, where old ocean crust from one tectonic plate is pushed beneath another plate. Trenches make up the world's hadal zone.
Deep-sea trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths, approximately 7,300 to more than 11,000 metres (24,000 to 36,000 feet). They typically form in locations where one tectonic plate subducts under another.
Mar 31, 2023 · Oceanic Trenches are formed by a process called subduction, where two or more tectonic plates converge. The old denser plate slides beneath a younger, less-dense plate much deep into the mantle, resulting in the seafloor and lithospheric crust bending to form a deep V-shaped depression.
Mariana Trench (Marianas Trench), deepest of the world’s deep-sea trenches. It stretches for more than 1,580 miles (2,540 km) with a mean width of 43 miles (69 km) and is part of the western Pacific system of oceanic trenches coinciding with subduction zones.
Apr 7, 2012 · Though Cameron and his team are hoping to discover more about the biology of the Mariana depths, geologists already know a lot about how the Mariana Trench formed—and why it's Earth's deepest...
May 11, 2021 · Mariana Trench: Deep ocean trenches occur where Earth's tectonic plates meet. Submarine dives to deepest-known shipwreck. World's deepest octopus captured on camera. Adventurer reaches deepest...
deep-sea trench, or oceanic trench, Any long, narrow, steep-sided depression in the ocean bottom in which maximum oceanic depths (24,000–36,000 ft, or 7,000–11,000 m) occur. The deepest known depression of this kind is the Mariana Trench.
