Definition of seafloor spreading
WebSea-floor Spreading Definition. In the theory of plate tectonics, the process by which new oceanic crust is formed by the convective upwelling of magma at mid-ocean ridges, … WebThe meaning of SEAFLOOR is the floor of a sea or ocean : seabed. How to use seafloor in a sentence.
Definition of seafloor spreading
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Webguyot, also called tablemount, isolated submarine volcanic mountain with a flat summit more than 200 metres (660 feet) below sea level. Such flat tops may have diameters greater than 10 km (6 miles). (The term derives from the Swiss American geologist Arnold Henry Guyot.) In the Pacific Ocean, where guyots are most abundant, most summits lie 1,000 … WebA mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics.It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin.This feature is where seafloor spreading takes place along a divergent plate boundary.The rate of seafloor spreading …
WebDefinition of seafloor spreading in the Definitions.net dictionary. Meaning of seafloor spreading. What does seafloor spreading mean? Information and translations of … WebIt is a place of earthquakes and volcanos. Seafloor spreading helps explain continental drift in plate tectonics. At oceanic trenches, seafloor crust slides down and under continental …
Webseafloor spreading in British English. seafloor spreading. noun. a series of processes in which new oceanic lithosphere is created at oceanic ridges, spreads away from the ridges, and returns to the earth's interior along subduction zones. … Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. The motivating force for seafloor spreading ridges is tectonic plate slab pull at subduction zones, rather than magma pressure, although there is typically significant magma activity at spreading ridges. Plates that are not subducting are driven by gravity sliding off the elevated mid-ocean ridges a process called ri…
WebSeafloor Spreading is the usual process at work at divergent plate boundaries, leading to the creation of new ocean floor. As two tectonic plates slowly separate, molten material rises up from within the mantle to …
WebDec 14, 2024 · Continental drift was a revolutionary theory explaining that continents shift position on Earth's surface. The theory was proposed by geophysicist and meteorologist Alfred Wegener in 1912, but was ... hudsonville assessor\u0027s officeWebJan 1, 2024 · Definition. Seafloor spreading is the mechanism by which new oceanic lithosphere is created at and moves away from the divergent plate boundaries known as … hudsonville 10 day weather forecastWebOct 14, 2024 · Sea floor spreading occurs when the two sides of a mid-ocean ridge move apart, leaving magma to fill the gap. Learn how to define sea floor spreading, discover how people learned about it, then ... hold passive voiceWebsubduction zone, oceanic trench area marginal to a continent in which, according to the theory of plate tectonics, older and denser seafloor underthrusts the continental mass, dragging downward into the Earth’s upper mantle the accumulated trench sediments. The subduction zone, accordingly, is the antithesis of the mid-oceanic ridge. New seafloor … hudsonville athletic scheduleWebJan 1, 2014 · Definition. Seafloor spreading is the mechanism by which new oceanic lithosphere is created at and moves away from divergent plate boundaries. The seafloor spreading hypothesis led to one of the most … hold pants without beltWebThe Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters (0.8 to 2 inches) per year and forming a rift valley that is about the depth and width of the Grand … hudsonville accuweatherhudsonville administration office