Seafloor Spreading Theory In Hindi

Seafloor spreading theory that oceanic crust forms along submarine mountain zones known collectively as the mid ocean ridge system and spreads out laterally away from them.

Seafloor spreading theory in hindi.

When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere. Seafloor spreading was proposed by an american geophysicist harry h. It leads to the formation of new material on the ridge. The theory of seafloor spreading the mid ocean ridge is where the seafloor spreading occurs in which tectonic plates large slabs of earth s lithosphere split apart from each other.

Mapping of sea floor in 1950s 3. The motivating force for seafloor spreading ridges is tectonic plate slab pull at subduction zones rather than magma pressure although there is typically. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american.

As per seafloor spreading theory the mid oceanic ridge is the region where at the crest of oceanic ridges through the rupture of the oceanic crust and the crack continuous new lava eruption thrusts into it consequently pushing the oceanic crust on either side. This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century. Seafloor spreading helps to explain continental drift in the theory of plate tectonics. 3 questions raised after sea floor mapping 4.

Beginning of sea floor spreading theory 2. Sea floor spreading theory.