Seafloor Spreading Theory In Hindi

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.

Seafloor spreading theory in hindi.

Mapping of sea floor in 1950s 3. In this video we are going to discuss a very important concept of geomorphology that is sea floor spreading theory which is given by harry hess an us navy admiral this theory is given by harry. Seafloor spreading helps to explain continental drift in the theory of plate tectonics. 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 was proposed by an american geophysicist harry h. 3 questions raised after sea floor mapping 4. 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.

It leads to the formation of new material on the ridge. That is it explains why the age thickness and density of the oceanic crust increases with distance from the mid oceanic ridge. Beginning of sea floor spreading theory 2. The theory of sea floor spreading states that new oceanic crust is being formed continuously at mid oceanic ridges while the older rocks move away from the ridge.

The motivating force for seafloor spreading ridges is tectonic plate slab pull at subduction zones rather than magma pressure although there is typically. When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere.