Sea Floor S Reading Definition Science

As the continents move apart whole new oceans.

Sea floor s reading definition science.

Seafloor spreading is a process that occurs at mid ocean ridges where new oceanic crust is formed through volcanic activity and then gradually moves away from 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. Wherever the sea floor is spreading the edges move apart while the magma in the middle hardens. That means the rock in the center is the youngest.

See also seafloor spreading. Sea floor spreading synonyms sea floor spreading pronunciation sea floor spreading translation english dictionary definition of sea floor spreading. 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 definition the solid surface underlying a sea or an ocean. Convection currents also recycle lithospheric materials back to the 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 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.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Mantle convection is the slow churning motion of earth s mantle. Seafloor spreading synonyms seafloor spreading pronunciation seafloor spreading translation english dictionary definition of seafloor spreading. 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.