ocean trenches and ridges Trench: very deep, elongated cavity bordering a continent or an island arc; it forms when one tectonic plate slides beneath another. n a long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone A deep, narrow trough in an ocean floor Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. At its deepest, it is more than 7,700 meters, or almost five miles deep. Victor Vescovo, a retired naval officer and Texas-based investor, said he made the unsettling discovery as he descended nearly 10,928 metres to a point in the Pacific Ocean's Mariana Trench …
But what about fish? In other words, it is an underwater longest mountain range in the world. The deepest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench at a depth of 10,911 m (35,798 ft) below sea level. next. The Pacific Ocean and the Atlantic Ocean are the deepest oceans that holds all 10 deepest points on earth. Click the image for a 900-pixel version. List of oceanic trenches synonyms, List of oceanic trenches pronunciation, List of oceanic trenches translation, English dictionary definition of List of oceanic trenches. 10. List of Ocean Ridges around the World The Ocean Ridges are submarine mountain chain formed by plate tectonics. There are more ridges whose names don't fit: The Galápagos Ridge runs from the East Pacific Rise to Cntral America, and the northern continuation of the Mid-Atlantic Ridge is called Reykjanes Ridge south of Iceland, Mohns Ridge north of Iceland, and Gakkel Ridge in the Arctic Ocean. Atacama Trench. Schmidt Ocean Institute.

Ridge: underwater mountain range that criss-crosses the oceans and is formed by rising magma in a zone where two plates are moving apart. Define List of oceanic trenches. … previous . Located in the northeastern corner of the Indian Ocean, the famous trench is the source of the 9.0 earthquake that in 2007 caused the destructive tsunami in Indonesia and India. U.S. GEOLOGICAL SURVEY Ocean Trenches A computer animation and paper model By Tau Rho Alpha*, and John P. Galloway* Open-file Report 96-76A This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards. Geographical activities created deep trenches beneath the ocean that thousands of feet in depth which could part of the deepest point.
This map shows the overall configuration of the ridges and their names. The deepest living fish in the Mariana Trench were found only in 2014, swimming at 8,143 meters (26,715 feet) below the surface. The Sunda Trench, the most-famous and most-destructive area of the Indian Ocean, was once called the Java Trench.