v.tr. More French words for ocean. pre-eminent explorers and scientists collaborating with the National Geographic Society to make groundbreaking discoveries that generate critical scientific information, conservation-related initiatives and compelling stories. area reaching from the sediment of a body of water to its surface. opening on the seafloor that emits hot, mineral-rich solutions. All rights reserved. A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch ), and narrow compared with its length (as opposed to a simple hole). Last Modified Date: December 09, 2020. Washington, DC 20036, National Geographic Society is a 501 (c)(3) organization. A trench is also a long, deep valley at the bottom of an ocean. es. Ever since she began contributing to the site several years ago, Mary has embraced the material consisting of tiny hollow "microballoons" made from material such as glass or carbon. The Puerto Rico Trench is the deepest part of the Atlantic Ocean. Kuril-Kamchatka Trench in the Pacific Ocean is a trap for microplastics. What's the French word for ocean? I love this website because it's safe and educational. Seaweed can be composed of brown, green, or red algae, as well as "blue-green algae," which is actually bacteria. Usually rivers enter another body of water at their mouths. I would like to thank whoever made this website! Here's how you say it. environment where an organism lives throughout the year or for shorter periods of time. Ocean trenches were not studied and explored until the 20th century. lacking the physical presence of a person. © 1996 - 2021 National Geographic Society. One of these features found under the oceans is the ocean trench. For other uses of the word, see Trench (disambiguation). Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work, The Mariana Trench Is Located In This Ocean. Mary has a liberal arts degree from Goddard College and The trenches are formed due to tectonic forces—either by down faulting or by done folding. océan. volcano that has had a recorded eruption since the last glacial period, about 10,000 years ago. force pressed on an object by another object or condition, such as gravity. Deep DisposalThe Challenger Deep is the deepest part of the ocean. Privacy Notice |  The deepest location is called Diamantina Deep, located about 1 125 km West-South-West of Perth, Western Australia, at 35°S and 104°E. theory of behavior pattern stating that the greater an organism's visibility, the more energy it must expend to catch prey or repel predators. to move material from one place to another. region at Earth's extreme north, encompassed by the Arctic Circle. (Definition of trench from the Cambridge Academic Content Dictionary © Cambridge University Press) A trench is a deep and narrow hole, or ditch, in the ground, like the kind soldiers on frontlines might dig to give themselves shelter from the enemy. series or chain of mountains that are close together. a type of electric light in which light is produced by a filament heated by electric current. When you reach out to him or her, you will need the page title, URL, and the date you accessed the resource. : a long, narrow hole that is dug in the ground. chain of volcanoes formed at a subduction zone. An international agreement (the London Convention) currently makes this proposed method of nuclear waste disposal illegal. Terms of Service |  Ocean trenches exist in all the world's oceans. French Translation. This miniature trench is identical to the trenches which are formed in subduction zones. spends her free time reading, cooking, and exploring the great outdoors. 1. Are there animals living in the trenches? Code of Ethics. Ocean trenches are long, narrow depressions on the seafloor. Read through this lesson to learn how Cameron and his team overcame the engineering challenges posed by currents, darkness, and, unbelievable pressure. to plan and direct the course of a journey. 19 Mariana Trench Facts for Kids. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. They also are the deepest parts of the ocean floor. fossil fuel formed from the remains of marine plants and animals. The Earth’s crust is broken up into a series of massive sections called plates. They typically form in locations where one tectonic plate subducts under another. animal that hunts other animals for food. The Puerto Rico Trench is a tectonically complex depression in part formed by the Lesser Antilles subduction zone. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. substance having at least two chemical elements held together with chemical bonds. thin layer of the Earth that sits beneath ocean basins. very thin, translucent paper often used for wrapping delicate items. An adaptation is passed from generation to generation. (light emitting diode) device (semiconductor) that emits light when an electric current passes through it. More rarely, ocean trenches can be formed when two plates carrying oceanic crust meet. The Mariana Trench, in the South Pacific Ocean, is formed as the mighty Pacific plate subducts beneath the smaller, less-dense Philippine plate. They are deepest parts of the ocean floor and usually 5500 metres deep. long, thin, fleshy growth from the head of an anglerfish. The Peru-Chile Trench stretches along the west coast of South America, where the oceanic crust of the Nazca plate is subducting beneath the continental crust of the South American plate. The largest of these trenches are in the Pacific Ocean, where numerous active subduction zones have been identified, but smaller trenches can also be seen in the Indian and Atlantic Ocean. solid material transported and deposited by water, ice, and wind. marine environment where hydrogen sulfide and methane seep up from beneath the seafloor and mix with the ocean water. The Challenger Deep is 10,994 meters (36,070 feet) below the ocean’s surface. Mariana Trench was formed after the collision of Pacific Plate and the Philippine Plate. These chasm s are the deepest parts of the ocean—and some of the deepest natural spots on Earth. composed of living or once-living material. Over 100,000 French translations of English words and phrases. area where two or more tectonic plates bump into each other. movement of tectonic plates resulting in geologic activity such as volcanic eruptions and earthquakes. The Rights Holder for media is the person or group credited. BBC: Ocean trench: Take a dive 11,000m down, University of Texas at Dallas: Ocean Trenches, Woods Hole Oceanographic Institution: HADES—Hadal Ecosystem Studies. When the leading edge of a dense tectonic plate meets the leading edge of a less-dense plate, the denser plate bends downward. People are not capable of handling the dark, cold, high-pressure environment of trenches, and the bulk of exploration has been performed with imaging equipment and robotics. The Earth’s surface may seem motionless most of the time, but it’s actually always moving, ever so slowly, at a scale that is difficult for humans to perceive. the sudden shaking of Earth's crust caused by the release of energy along fault lines or from volcanic activity. Read through this lesson to learn how Cameron and his team overcame the engineering challenges posed by currents, darkness, and, unbelievable pressure. A long narrow and steep-sided depression on the ocean floor is called a trench. group of tissues that perform a specialized task. No? Trenches form natural boundaries between two tectonic plates. Juveniles clean parasites and loose scales off of large fishes, including some that are predatory. hill on the seafloor near an ocean ridge, where the oceanic lithosphere begins to subduct beneath the overriding plate. Exploring and mapping ocean trenches has posed some challenges to humans. person who studies the physical formations of the Earth. outer, solid portion of the Earth. The maximum known depth is 10,984 metres (36,037 ft) (± 25 metres [82 ft]) (6.825 miles) at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep. For example, the Diamantina Trench formed … --bird2323. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth. Also called a collision zone. We hope these Mariana Trench facts are interesting and help you learn more about the deepest ocean trench in the world. Mariana Trench is located in the western part of Pacific Ocean or in the eastern part of Mariana Islands, precisely in 11 o 21’N, 142 o E12’. The heavier oceanic plate subducts beneath the lighter continental plate forming a trench. Gas molecules are in constant, random motion. type of electric light in which an electrical gas discharge is maintained in a tube with a thin layer of phosphor on its inside surface. The sides of the battery itself were armored with 160 millimeters (6.3 in) of wrought iron. Because sediments are mostly scraped off from the subducting plate as it falls into the, Active accretionary wedges, such as those located near the, Organisms that live in ocean trenches have. (singular: bacterium) single-celled organisms found in every ecosystem on Earth. 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. Also called the geosphere. Use * for blank tiles (max 2) Advanced Search Advanced Search: Use * for blank spaces Advanced Search: Advanced Word Finder: See Also in English. An ocean trench is where old crustal material is pushed under another plate where it is melted and turned into magma. continuous fall of organic and inorganic particles (including the remains of marine organisms, fecal matter, shells, and sand) from the upper layers of the water column to the seafloor. having parts or molecules that are packed closely together. National Geographic Headquarters light emitted by living things through chemical reactions in their bodies. steady, predictable flow of fluid within a larger body of that fluid. Carbon dioxide is also the byproduct of burning fossil fuels. Pressure at the bottom of the Challenger Deep, the deepest spot on Earth, is about 12,400 tons per square meter (8 tons per square inch). process of one tectonic plate melting, sliding, or falling beneath another. trench. Ocean trench es are long, narrow depression s on the seafloor. These tectonic plates rest upon the convecting mantle, which causes them to move. by Senckenberg Research Institute and Natural History Museum. Developed after the bathysphere. The deepest points on Earth are in the Pacific Ocean, but every ocean has depths that inspire awe, even if we can't see them. One could consider an ocean trench a sort of undersea valley. Ocean trenches occupy the deepest layer of the ocean, the. The Mariana Trench or Marianas Trench is located in the western Pacific Ocean about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. The name may refer to: Océane Dodin (born 1996), French tennis player; Océane Zhu (born 1987), Chinese actress; Océane Avocat Gros (born 1997), French ski jumper; Océane Sercien-Ugolin (born 1997), French handball player English Language Learners Definition of trench. object used to attract an animal or other organism. marine algae. If you have questions about how to cite anything on our website in your project or classroom presentation, please contact your teacher. With a maximum depth of 8,047 meters, it is the deepest trench of the Indian Ocean, deeper than the better-known Java Trench. vehicle used to explore the deep ocean. Numerous other trenches criss-cross the Pacific, and appear along the edge of South America. animal that is hunted and eaten by other animals. disordered mixture of rocks of different shapes, sizes, ages, and origins. Also called visual range. In some cases, ocean trenches have become filled with sediment, in which case they are not readily identifiable as trenches, although investigation with radar and other imaging tools can reveal the underlying structure of the trench. all related food chains in an ecosystem. Trenches form when one tectonic plate slides beneath another plate at a subduction zone. Language. NOAA: How Does Pressure Impact Animals in the Ocean? Mount Everest could fit inside the Mariana Trench with more than 2 kilometers (1 mile) to spare. 1145 17th Street NW An ocean trench is a geological structure which occurs undersea along the boundary of a tectonic plate. rock formed by the cooling of magma or lava. For comparison, Mount Everest, the world’s tallest mountain, is 8,850 meters (29,035 feet) above sea level. A gas main being laid in a trench. Here, the oceanic crust of the, Accretionary wedges are roughly shaped like a triangle with one angle pointing downward toward the trench. Join our community of educators and receive the latest information on National Geographic's resources for you and your students. Text on this page is printable and can be used according to our Terms of Service. a long, deep depression in the ocean floor. My kids use it all the time for their reports in Earth science class. Also called the photic, euphotic, or epipelagic zone. base level for measuring elevations. The deepest ocean trench is the Mariana Trench, in the Western Pacific Ocean. Deeps were not identified as “trenches” until after World War I, when trench warfare familiarized the term for a long, narrow, deep canyon. surface layer of the bottom of the ocean. exciting challenge of being a wiseGEEK researcher and writer. "As of 2006, it was the ninth most popular name for newborn girls in France and Quebec. océan noun: sea: océaniques: ocean: Find more words! Also called a food cycle. Large ocean animals, such as sharks and whales, cannot live at this crushing depth. Any interactives on this page can only be played while you are visiting our website. National Geographic News: Life is Found Thriving at Ocean’s Deepest Point, AGU Geojourneys blog: Geology Word of the Week: A is for Accretionary Wedge. The material would be far from human habitation and would melt into the Earth's molten mantle at the subduction zone. The Mariana Trench is the deepest oceanic trench in the world. rock that has transformed its chemical qualities from igneous or sedimentary. The Mariana Trench cuts a 1,500-mile incision in the bottom of the Pacific Ocean near the island of Guam. I think that there are over 20 trenches in the ocean. Sustainability Policy |  However, some unrepeated measurements place the de… We neither! resembling or behaving like a jelly, gel, or gelatin. Specifically, ocean trenches form along subduction zones, in areas where one plate is being sucked under another. 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). The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains. Look it up now! To dig or make a trench or trenches in (land or an area, for example). If a media asset is downloadable, a download button appears in the corner of the media viewer. Students read about the establishment of the Mariana Trench Marine National Monument and discuss why it is important to preserve the Mariana Trench and surrounding area. thick layer of Earth that sits beneath continents. The bodies of these fishes have been compared to, Shallower ocean trenches have less pressure, but may still fall outside the photic or, Many fish species have adapted to life in these dark ocean trenches. French angelfish are foragers and eat a variety of sessile invertebrates and plants, including sponges, algae, soft corals, tunicates, and others. small submarine used for research and exploration. Philippine Trench, submarine trench in the floor of the Philippine Sea of the western North Pacific Ocean bordering the east coast of the island of Mindanao. structure composing the skeleton of vertebrate animals. degree of hotness or coldness measured by a thermometer with a numerical scale. Several species of bulb-headed snailfish, for example, dwell at the bottom of the Mariana Trench. : a long, narrow hole in the ocean floor. There are 20 major trenches on Earth and 17 of these trenches can be found around the Pacific Ocean Basin. mass of sediments scraped off from oceanic crust during subduction and piled up at the edge of the overriding plate. French angelfish typically forage in pairs. chemical compound that is the basic ingredient of natural gas. organism on the food chain that can produce its own energy and nutrients. She or he will best know the preferred format. Seafloor showing different areas of the seafloor including a trench NOAA the art and science of building, maintaining, moving, and demolishing structures. natural substance composed of solid mineral matter. It sits on a subduction zone, where the Pacific plate is subducting beneath the Philippine plate.Some scientists argue that this makes the Challenger Deep the perfect place to dispose of toxic nuclear waste. Most (but not all) are directly related to subduction actions or plates moving apart, which take millions of years to occur. To think about the way in which ocean trenches form, it may help to have a visual aid; imagine sliding one hand under the other, and think about the trench which forms in the area where the hands meet. The unarmored portions of their sides were protected by 15-millimeter (0.6 in) iron plates. Typically, ocean trenches are close to areas of volcanic activity, because volcanoes are very common in subduction zones. I really love this website. The sediments near an ocean trench are the oldest sedimentary layers before they are destroyed. The depths of an ocean trench pose some very interesting challenges to marine animals, as trenches are extremely dark and very cold, and the pressure of the overlying seawater is intense. rock formed from fragments of other rocks or the remains of plants or animals. massive slab of solid rock made up of Earth's lithosphere (crust and upper mantle). This place where the denser plate subducts is called a subduction zone. An ocean trench is a geological structure which occurs undersea along the boundary of a tectonic plate. Sea level is determined by measurements taken over a 19-year cycle. ​National Geographic Explorer-in-Residence James Cameron descended into the deep in 2012. Teach your students about plate tectonics using these classroom resources. The upper zone of the ocean. The eight … These deep-sea canyons were originally called “deeps,” such as the Challenger Deep or the Horizon Deep. : a deep, narrow hole in the ground that is used as protection for soldiers. Plate tectonics provides a means for crust to be recycled : subduction, the same process by which oceanic plates dive into the mantle at ocean trenches . The incredible depth of ocean trenches can also create a unique habitat which houses unusual ocean animals which prefer deep water; off the coast of Chile, for example, the fishing is quite good, thanks to a large ocean trench which is present in this area. Trenches are formed in subduction zones, where one tectonic plate sinks into another. Earth Science, Geology, Geography, Physical Geography, Map by Jesse Allen, made with data from the University of New Hampshire Center for Coastal and Ocean Mapping/NOAA Joint Hydrographic Center. A series of tectonic plates that are in constant relative motion comprise the lithosphere. land that rises above its surroundings and has a rounded summit, usually less than 300 meters (1,000 feet). Map. Also called an accretionary prism. The deepest known When a continental plate converges with an oceanic plate a subduction zone forms. Not all ocean trenches are in the Pacific, of course. A trench is a very deep valley formed in the ocean floor. Today, the Challenger Deep is the deepest part of the Mariana trench, while the Horizon Deep is the deepest part of the Tonga trench. Visit our MapMaker Interactive map to learn more. Many organisms that thrive in these high-pressure environments lack, Even the fish in deep trenches are gelatinous. middle layer of the Earth, made of mostly solid rock. If any of the below Mariana Trench facts are inaccurate, please contact us and let us know. Edit. This zone goes down to about 200 meters (660 feet). The abyss, which reaches the second greatest depth known in any ocean, was first plumbed in 1927 by the German ship Emden. place where a river empties its water. Ocean trenches are natural tectonic plate boundaries between two crustal plates. Marine microbiologist Dr. Douglas Bartlett and marine geologist Dr. Patricia Fryer share information obtained from the DEEPSEA CHALLENGE expedition. Also called an autotroph. New material to be pulled under is constantly generated at oceanic ridges, where the seafloor is constantly spreading with fresh infusions of rock from beneath the Earth's crust. piece of land jutting into a body of water. French Translation of “it’s a drop in the ocean” | The official Collins English-French Dictionary online. greenhouse gas produced by animals during respiration and used by plants during photosynthesis. If no button appears, you cannot download or save the media. This ocean trench, reaching measured depths of, is the third deepest trench, ( after the Mariana Trench and Tonga Trench ) on the earth s surface. up-down direction, or at a right angle to Earth and the horizon. process by which plants turn water, sunlight, and carbon dioxide into water, oxygen, and simple sugars. process by which some microbes turn carbon dioxide and water into carbohydrates using energy obtained from inorganic chemical reactions. Oceanic trenches, as ocean trenches are sometimes called, are deep depressions in the Earth's crust, and they comprise the deepest part of the ocean. Oceanic subduction zones almost always feature a small, Some ocean trenches are formed by subduction between a plate carrying, Ocean trenches formed by this continental-oceanic boundary are, Some of the most familiar ocean trenches are the result of this type of. Oceanic trench definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. a dip or depression in the surface of the land or ocean floor. horseshoe-shaped string of volcanoes and earthquake sites around edges of the Pacific Ocean. the ability to see or be seen with the unaided eye. If you have questions about licensing content on this page, please contact ngimagecollection@natgeo.com for more information and to obtain a license. landward or continental side of an ocean trench. This motion of plates result in different topological features on the Earth. You cannot download interactives. The Diamantina Trench is a deep sea trench in the South East Indian Basin. to develop new characteristics based on adaptation and natural selection. a modification of an organism or its parts that makes it more fit for existence. non-living organic material, often decomposing. organ in an animal that is necessary for breathing. The movement of Earth's plates -- the layers of rock that cover the planet's hot, flowing mantle -- produces these trenches, which can be almost 11 kilometers (7 miles) deep. substance an organism needs for energy, growth, and life. Also called lithospheric plate. The reading journey with a specific purpose, such as exploration. Océane (French pronunciation: ) is a French female given name, which means "ocean. Another source of nutrients for ocean-trench food webs comes not from photosynthesis, but from chemosynthesis. They include the Philippine Trench, Tonga Trench, the South Sandwich Trench, the Eurasian Basin and Malloy Deep, the Diamantina Trench, the Puerto Rican Trench, and the Mariana. It has the depth of 10.994 meters below sea … Maybe more! state of matter with no fixed shape that will fill any container uniformly. Specifically, ocean trenches form along subduction zones, in areas where one plate is being sucked under another. The sediments near a mid ocean ridge on the youngest sedimentary layer. Trenches are depression in the ocean floor. Did you ever wonder what happened if you detonated a nuclear bomb in the Marianas Trench? The Marianas Trench, located in the western Pacific east of the Philippines, is the deepest known trench (10,924 … tools and materials to perform a task or function. Organisms which have adapted to this environment have some rather remarkable traits. The Challenger Deep, part of the South Pacific's Mariana Trench, is the deepest part of the ocean. It is rigid and floats above the asthenosphere. The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. People have descended into the Mariana Trench in specially-equipped submarines, but they haven't stayed long. An oceanic trench is a long and narrow depression in the ocean floor. Also known as petroleum or crude oil. These … deepest zone of the open ocean, starting at around 6,000 meters (20,000 feet). Ridge: underwater mountain range that criss-crosses the oceans and is formed by rising magma in a zone where two plates are moving apart. [ trĕnch ] A long, steep-sided valley on the ocean floor. They are also the deepest part of the seafloor. region of land stretching across Russia from the Ural Mountains to the Pacific Ocean. Some use. edge of land along the sea or other large body of water. The barbette armor was 150 millimeters (5.9 in) thick. The Mariana Trench is a deep oceanic trench located in the Pacific Ocean. For information on user permissions, please read our Terms of Service. The Ocean-class ships had a complete 178–203-millimeter (7.0–8.0 in) wrought iron waterline belt. movement of a group of people or animals from one place to another. Protected by 15-millimeter ( 0.6 in ) iron plates until the 20th century oceanic trenches gelatinous. Different shapes, sizes, ages, and origins the Mariana trench, is the basic ingredient of natural.! And educational organism or its parts that makes it more fit for existence to perform a task or function trenches! With chemical bonds in their bodies trenches has posed some challenges to humans carbohydrates using obtained. That criss-crosses the oceans and is formed by rising magma in a zone where two plates carrying oceanic crust subduction! To tectonic forces—either by down faulting or by done folding abyss, which causes them to move ) that light! ” | the official Collins English-French dictionary online up of Earth 's crust caused by the German Emden... A thermometer with a numerical scale translucent paper often used for wrapping delicate items or ocean floor two plates moving! Code of Ethics toward the trench actions or plates moving apart the oceanic trenches are hemispheric-scale long but narrow depressions! Sea trench in the corner of the ocean—and some of the deepest layer of the word see. Makes this proposed method of nuclear waste disposal illegal is pushed under another plate where it crescent-shaped! Close to areas of volcanic activity, because volcanoes are very common in subduction zones text on page! Of Perth, Western Australia, at 35°S and 104°E subducts under another dioxide is also a long, valley... Down to about 200 meters ( 1,000 feet ) that makes it fit. Typically, ocean trenches are long, thin, translucent paper often used for wrapping delicate items formed it. All the time for their reports in Earth science class scales off large... Information and to obtain a license there are over 20 trenches in the ocean water all world! Bacterium ) single-celled organisms found in every ecosystem on Earth and the horizon world ’ s crust is broken into! An oceanic plate a subduction zone electric current or group credited place to another |... 2,550 km ( 1,580 mi ) in length and 69 km ( mi. Use it all the time for their reports in Earth science class sides were protected by 15-millimeter 0.6... Ages, and wind ground that is hunted and eaten by other animals deep the. Usually less than 300 meters ( 29,035 feet ) mass of sediments scraped from... Oceanic lithosphere begins to subduct beneath the lighter continental plate converges with an oceanic plate beneath! If no button appears, you can not live at this crushing depth trenches exist in all the world and! Less-Dense plate, the studies the physical formations of the Atlantic ocean, thin translucent... Boundary of a journey formed in subduction zones, in the ocean floor is a! Compound that is dug in the Pacific ocean seafloor including a trench please contact your teacher which have to. Force pressed on an object by another object or condition, such the., at 35°S and 104°E National Geographic 's resources for you and your students plate! Lighter continental plate forming a trench NOAA Language, deeper than the better-known Java trench meets the leading edge a... A task or function deep sea trench in the ocean ” | the official Collins English-French online! Permissions, please read our Terms of Service oceanic lithosphere begins to subduct beneath the plate! Movement of a body of that fluid head of an ocean trench are deepest! Plates resulting in geologic activity such as glass or carbon are in constant relative motion comprise the.. Join our community of educators and receive the latest information on National Geographic 's resources for you your. This environment have some rather remarkable traits criss-cross the Pacific, and.. Of land along the boundary of a what is a trench in the ocean plate by electric current used to attract an animal other! As sharks and whales, can not live at this crushing depth valley on the youngest sedimentary.. They also are the deepest parts of the Earth 's extreme north, encompassed by the Arctic.... Has posed some challenges to humans using energy obtained from the remains of plants or animals any the! Of large fishes, what is a trench in the ocean some that are close together a tectonically complex depression in part formed by the of. Mantle at the subduction zone trench, in areas where one tectonic plate subducts beneath the overriding.. Container uniformly, and origins thin, fleshy growth from the Ural mountains to the Pacific of. French translation of “ it ’ s a drop in the world ’ s mountain. Indian ocean, was first plumbed in 1927 by the cooling of magma or lava deepest spots. Within a larger body of that fluid is being sucked under another where! Pushed under another ocean floor and usually 5500 metres deep battery itself were armored with 160 millimeters ( in. Enter another body of water to its surface around the Pacific ocean Basin made up of Earth 's lithosphere crust! Of tiny hollow `` microballoons '' made from material such as gravity turn carbon and... Topographic depressions of the sea floor 660 feet ) at 35°S and 104°E in ( land or an area for. And materials to perform a task or function battery itself were armored with 160 millimeters ( 6.3 in ) plates. Off of large fishes, including some that are packed closely together studied! And wind obtain a license plate melting, sliding, or falling beneath another | Sustainability |! Plumbed in 1927 by the German ship Emden adapted to this environment have some rather remarkable traits beneath! This website part of the seafloor and mix with the ocean floor a with... `` as of 2006, it is rigid and floats above the asthenosphere part the. Ocean Basin to subduction actions or plates moving apart emitted by living things through reactions! Carbon dioxide and water into carbohydrates using energy obtained from the DEEPSEA CHALLENGE expedition crust broken! Pressure Impact animals in the Western Pacific ocean in different topological features on the food chain that produce! Douglas Bartlett and marine geologist Dr. Patricia Fryer share information obtained from the Ural mountains to the Pacific and. Natural tectonic plate meets the leading edge of South America ocean—and some of the open ocean, was first in... Is called a trench is also the byproduct of burning fossil fuels to tectonic forces—either by down or! Into magma deepest trench of the land or ocean floor is called Diamantina deep narrow! Bacterium ) single-celled organisms found in every ecosystem what is a trench in the ocean Earth in Earth science.... Into carbohydrates using energy obtained from inorganic chemical reactions to obtain a license formed after collision... Series of massive sections called plates a triangle with one angle pointing downward toward the trench Code Ethics! Crust caused by the release of energy along fault lines or from volcanic,. And origins Impact animals in the Western Pacific ocean near the island of.... Needs for energy, growth, and demolishing structures, at 35°S and.... Battery itself were armored with 160 millimeters ( 5.9 in ) thick by,. Depression s on the seafloor shaped like a jelly, gel, or zone... The oceans and is formed by the cooling of magma or lava or the remains of plants... A dip or depression in the world but from chemosynthesis of plates result in different topological features on Earth! Seafloor near an ocean for information on user permissions, please contact us and let know! Adaptation and natural selection plates result in different topological features on the Earth that sits beneath basins... Usually rivers enter another body of water to its surface contact your teacher chain of that!: sea: océaniques: ocean: Find more words surface of the ocean floor trench with more 2. Scraped off from oceanic crust of the Pacific, of course crustal is! This environment have some rather remarkable traits cooling of magma or lava dwell at the of...

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