Theory Of Seafloor Spreading Is Given By

Sea floor spreading theory.

Theory of seafloor spreading is given by.

When the concept of seafloor spreading came along scientists recognized that it was the mechanism to explain how continents could move around earth s surface. Tectonicus from the ancient greek. Like the scientists before us we will now merge the ideas of continental drift and seafloor spreading into the theory of plate tectonics. When the concept of seafloor spreading came along scientists recognized that it was the mechanism to explain how continents could move around earth s surface.

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 1912 when alfred wegener proposed that the continents had once been joined together and had split apart the biggest weakness in his hypothesis was the. Supporters of continental drift originally theorized that the continents moved drifted through unmoving oceans. 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.

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 disproves an early part of the theory of continental drift. Like the scientists before us we will now merge the ideas of continental drift and seafloor spreading into the theory of plate tectonics. 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 was proposed by an american geophysicist harry h. When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere. 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. It leads to the formation of new material on the ridge.

These age data also allow the rate of seafloor spreading to be determined and they show that rates. Seafloor spreading proves that the ocean itself is a site of tectonic activity. Plate tectonics from the late latin. Pertaining to building is a scientific theory describing the large scale motion of seven large plates and the movements of a larger number of smaller plates of earth s lithosphere since tectonic processes began on earth between 3 3 and 3 5 billion years ago.