Sea Floor S Reading Definition Science

Geological science a series of processes in which new oceanic lithosphere is created at oceanic ridges spreads away from the ridges and returns to the earth s.

Sea floor s reading definition science. N a series of processes in which new oceanic lithosphere is created at oceanic ridges spreads away from the ridges and returns to the earth s interior. Earlier theories by alfred wegener and alexander du toit of continental drift postulated that. Seafloor spreading and other tectonic activity processes are the result of mantle convection. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.

As the continents move apart whole new oceans. Wherever the sea floor is spreading the edges move apart while the magma in the middle hardens. Seafloor spreading definition a process in which new ocean floor is created as molten material from the earth s mantle rises in margins between plates or ridges and spreads out. Mantle convection is the slow churning motion of earth s mantle.

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. Geological science any section of the narrow largely continuous range of submarine mountains that extends into all the major oceans and at which new oceanic lithosphere is created by the rise of magma from the earth s interior. Convection currents carry heat from the lower mantle and core to the lithosphere. 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.

Convection currents also recycle lithospheric materials back to the mantle. Sea floor spreading synonyms sea floor spreading pronunciation sea floor spreading translation english dictionary definition of sea floor spreading. Seafloor spreading synonyms seafloor spreading pronunciation seafloor spreading translation english dictionary definition of seafloor spreading. See also seafloor spreading.