Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… … Wikipedia
Trough (geology) — In geology, a trough generally refers to a linear structural depression that extends laterally over a distance, while being less steep than a trench. A trough can be a narrow basin or a geologic rift. There are various oceanic troughs, troughs… … Wikipedia
Nankai Trough — The Nankai Trough 南海トラフ (Nankai Torafu?) is a submarine trough located south of Japan s island of Honshū, extending approximately 900 km offshore. In plate tectonics, the Nankai Trough marks a subduction zone that is caused by subduction of… … Wikipedia
Cayman Trough — Coordinates: 18°30′N 83°0′W / 18.5°N 83°W / 18.5; 83 … Wikipedia
Near-equatorial trough — Since 1954, studies concluded that the near equatorial trough was associated with a maximum in oceanic sea surface temperature. It is sometimes used as a synonym for the terms near equatorial tradewind convergence,[1] Intertropical convergence… … Wikipedia
Monsoon trough — August position of the ITCZ and monsoon trough in the Pacific Ocean, depicted by area of convergent streamlines in the northern Pacific The monsoon trough is that portion of the Intertropical Convergence Zone (ITCZ) which extends into or through… … Wikipedia
Dawson-Lambton Trough — (76°0′S 26°0′W / 76°S 26°W / 76; 26) is an undersea trough extending from the Dawson Lambton Glacier terminus. The name proposed by Dr. Heinrich Hinze, Alfred Wegener Institute for Pol … Wikipedia
Dubinin Trough — (67°10′S 80°30′E / 67.167°S 80.5°E / 67.167; 80.5) is an undersea trough named for Soviet Captain A.I. Dubinin, leader of 1957 Antarctic expedition. Name proposed by Dr. G. Agapova, Geological Institute of the Russian Ac … Wikipedia
Moller Trough — (76°35′S 30°40′W / 76.583°S 30.667°W / 76.583; 30.667) is an undersea trough in the Weddell Sea named for Dietrich Moller, geodesist and former President, German Society for Pol … Wikipedia
Hawaiian Trough — The Hawaiian Trough, also known as the Hawaiian Deep, is a depression of the sea floor surrounding the Hawaiian Islands, where the massive weight of the island chain downwarps the oceanic lithosphere; surrounding the islands like a moat, it is… … Wikipedia
