abyssal plains definition
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- Template:Aquatic layer topics. An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth ’s surface.
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Abyssal Plain Approximately 40% of our planet's ocean floor is covered by abyssal plains. The remainder of the ocean floor topography consists of hills, cone-shaped or flat-topped mountains, deep trenches, and mountain chains such as the mid-oceanic ridge systems.
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Sahel The Sahel (/səˈhɛl/) is the ecoclimatic and biogeographic zone of transition in Africa between the Sahara Desert to the north and the Sudanian Savanna to the south. Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea.
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List of submarine topographical features Abyssal plain[edit] An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 meters (9,800 ft) and 6,000 meters (20,000 ft). Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains are among the flattest, smoothest and least explored regions on Earth.
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Abyssal Plain: Definition & Facts And the word 'plain' usually means a flat, wide area. Put those two things together and you have an abyssal plain, which refers to the huge, flat areas on the ocean floor. Flat is almost an understatement. The abyssal plains are some of the flattest features on the planet.Some drop in elevation less than a foot for every 1,000 feet in distance.f you have no idea what an abyssal plain is, your imagination is likely to come up with some depressing images ('abyssal' sounds pretty close to 'abysmal,' after all). Here you will learn what an abyssal plain actually is, what it looks like and what lives there.
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Interior Plains The Interior Plains is a vast physiographic region that spreads across the Laurentian craton of central North America.his area was originally formed when cratons collided and welded together 1.8–1.9 billion years ago in the Trans-Hudson orogeny during the Paleoproterozoic Era. Precambrian metamorphic and igneous rocks now form the basement of the Interior Plains and make up the stable nucleus of North America.
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What is ABYSSAL PLAIN? Flat area on a deep ocean floor, located between the foot of a continental rise and a mid-ocean ridge, usually at depths between 3000 and 6000 m. These plains cover more than 50% of the Earth.
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- OUTWASH PLAINS. The large quantities of water that flowed from the melting ice deposited various kinds of materials, the most important of which is called glacial outwash. Outwash plains made up of outwash deposits are characteristically flat and consist of layers of sand and other fine sediments. till plain is composed of unsorted material (till) of all sizes with much clay, an outwash plain is mainly stratified (layered and sorted) gravel and sand. The till plain has a gently undulating to hilly surface; the outwash is flat or very gently undulating where it is a thin veneer on the underlying till.
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The Coral Sea The geological structure of the Coral Sea is characterised by abyssal plain to the northeast, a series of plateaux and slopes etched by undersea canyons and separated by deep ocean trenches, and the northern end of a volcanic seamount chain to the south (Keene et al.
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- Abyssal clays are more abundant in the Pacific than the Atlantic because calcareous oozes dissolve before reaching the sea floor in the latter ocean basin.
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The Abyss As described below, the abyss is a hot place (geologists know that the internal temperatures of the earth are so high that rock is molten), and although very deep within the earth, not necessarily dark because molten rock glows and gives light, just like a filament in a light bulb.ince the Bible refers to the abyss as a place where demons are imprisoned, it would not then be entirely a physical place within the earth anyway, since demons are spirits who can pass through physical barriers. The abyss is logically a spiritual and physical place within the earth.
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- abyss definition, meaning, what is abyss: a very deep hole that seems to have no bottom. Learn more.
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- An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms.
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Abyssal plain They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust.Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust.ying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth ’s surface. They are among the flattest, smoothest and least explored regions on Earth.
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Ocean basin The relatively flat areas of ocean basins between continental margins and mid-ocean ridges are called abyssal plains. They are generally found at depths of 13,000 to 16,000 feet (3,960 to 4,875 meters).
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Great Plains The Great Plains are the broad expanse of prairie, steppe and grassland which lie west of the Mississippi River and east of the Rocky Mountains in the United States and Canada … .
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- At AreaCode.org, you'll find helpful information on the 973 area code, including 973 area code location. Other phone area codes may be found using AreaCode.org's area code locator. Use the search function for area code look up. It's never been easier to find Toll Free with a free trial.
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Abyssal zone Abyssal zone. The abyssal zone or abyssopelagic is a layer of the pelagic zone of the ocean. Abyss derives from the Greek word ἄβυσσος, meaning bottomless. At depths of 4,000 to 6,000 metres (13,123 to 19,685 feet), this zone remains in perpetual darkness and never receives daylight.
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abyssal of or like an abyss; immeasurable; unfathomable. 2. of or relating to the biogeographic zone of the ocean bottom between the bathyal and hadal zones: from depths of approximately 13,000 to 21,000 feet (4000 to 6500 meters). Origin of abyssal.
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Great Plains The southeastern portion of the Great Plains is the most tornado active area in the world and is sometimes referred to as Tornado Alley. Flora. The Great Plains are part of the floristic North American Prairies Province, which extends from the Rocky Mountains to the Appalachians. History Original American contact
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Definitions &Translations Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water.
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- The Great Plains is the huge expanse of flatlands from the Rocky  Mountains eastward to the Mississippi River. The area also may be  referred to as the American Plains.he Great Plains is the huge expanse of flatlands from the Rocky  Mountains eastward to the Mississippi River. The area also may be  referred to as the American Plains.
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Interior Plains The Interior Plains is a vast physiographic region that spreads across the Laurentian craton of central North America.he Interior plains region of the United States and Canada falls within this area. The Interior Plains were often covered by shallow inland seas. Sediments from the shield and the Rocky Mountains were deposited in these seas over millions of years.
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Abyssal zone The area below the abyssal zone is the sparsely inhabited hadal zone. The zone above is the bathyal zone.
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abyssal abyssal. adj. 1. (Physical Geography) of or belonging to the ocean depths, esp below 2000 metres (6500 feet): abyssal zone.
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abyss A switchback path leads into the abyss. noun. The definition of an abyss is an extremely deep or bottomless hole or chasm, either literal or figurative. A bottomless pit is an example of an abyss. A person who is very depressed may be said to have fallen into an abyss.