Sea floor spreading
Seafloor spreading (usually uncountable, plural seafloor spreadings) (geology) the outward movement of the seafloor from central underwater ridges as a result . Seafloor spreading department of earth sciences research research groups cambridge volcano seismology group all about earthquakes and. Aerial view, looking north along the dabbahu-manda-hararo rift, afar, ethiopia the stratovolcano, dabbahu, lies in the background our new. Seafloor spreading in the centres of many oceans, there are mid-ocean ridges at these places, the tectonic plates are moving apart molten material, known as.
The seafloor spreading theory is one hypothesis introduced to suggest a mechanism of controlled co2 levels in the atmosphere, causing the. This “recycling” process, later named “seafloor spreading,” carries off older sediment and fossils, and moves the continents as new ocean crust spreads away. The corner stone of plate-tectonics is the theory of sea-floor spreading according to this theory the floor of the ocean is moving or spreading. Seafloor spreading is a geologic process in which tectonic plates—large slabs of earth's lithosphere—split apart from each other.
Seafloor spreading is a part of plate tectonics its discovery provided a mechanism for continental drift that alfred wegener could not explain in. Sea-floor spreading introduction the earth is far more dynamic than most people realize movement at the edges of large, rigid slabs of the earth's. Using this new information, three american scientists hess, dietz and heezen ( box 1) proposed that the sea floor was actually spreading apart along the ocean .
Sea floor spreading
Ocean floor spreading definition: → another term for seafloor spreading | meaning, pronunciation, translations and examples. Arthguide plate tectonics: seafloor spreading labels transfrom fault fracture zone midocean ridge subsurface features 5 cm per year 10 k yrs 1 k yrs. A model of sea-floor spreading teacher's guide ellen p metzger introduction purpose: students will make a paper model illustrating.
Seafloor spreading definition, meaning, english dictionary, synonym, see also ' seafood',sea lord',seal',sealer', reverso dictionary, english definition, english. Links to images, maps, and animations wwwngdcnoaagov/ image shows the age distribution of the ocean floor click image for larger view. Data on sea-floor spreading now available are compatible with a non-expanding earth the discussion will be confined to a preliminary investigation of the. 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, resulting in the.
Seafloor spreading, theory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwater ridges first proposed in the. In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges. Sea-floor spreading is what happens at the mid-oceanic ridge where a divergent boundary is causing two plates to move away from one another resulting in. The main issue with wegener's continental drift theory was he did not have a mechanism behind the drifting of continents he had a substantial amount of.