Seafloor Spreading Theory Byju S

Arthur holmes in 1930s discussed the possibility of convection currents.

Seafloor spreading theory byju s.

Convection current theory convection current theory is the soul of seafloor spreading theory. 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. In 1963 fred vine and d h. Seafloor spreading was proposed by an american geophysicist harry h.

These cornerstones are convectional current theory and paleomagnetism. Sea floor spreading theory. Beginning of sea floor spreading theory 2. It leads to the formation of new material on the ridge.

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. 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. 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. Matthews used paleomagnetism to test the theory of seafloor spreading by studying paleomagnetic data from a portion of the midocean ridge system if the seafloor has spread laterally by the addition of new crust at the oceanic ridges there should be a relatively symmetrical pattern of magnetic orientation normal polarity reversed polarity normal polarity and.