Sea Floor S Reading Definition Science

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.

Sea floor s reading definition science.

Seafloor spreading and other tectonic activity processes are the result of mantle convection. Sea floor spreading synonyms sea floor spreading pronunciation sea floor spreading translation english dictionary definition of sea floor spreading. Convection currents carry heat from the lower mantle and core to the lithosphere. 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.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. 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. 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. Wherever the sea floor is spreading the edges move apart while the magma in the middle hardens.

See also seafloor spreading. Convection currents also recycle lithospheric materials back to the mantle. 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. Mantle convection is the slow churning motion of earth s mantle.

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 definition the solid surface underlying a sea or an ocean. Seafloor spreading synonyms seafloor spreading pronunciation seafloor spreading translation english dictionary definition of seafloor spreading. 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.