Sea Floor Spreading Google Definition

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.

Sea floor spreading google definition.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. This is a mid ocean ridge. 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.

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. Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge. Sea floor spreading synonyms sea floor spreading pronunciation sea floor spreading translation english dictionary definition of sea floor 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.

Seafloor spreading and other tectonic activity processes are the result of mantle convection. 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. Seafloor spreading definition is the divergence at mid ocean ridges of the tectonic plates underlying the oceans that is due to upwelling from the earth s interior of magma which solidifies and adds to the spreading plates. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary.

Convection currents carry heat from the lower mantle and core to the lithosphere. Seafloor spreading theory synonyms seafloor spreading theory pronunciation seafloor spreading theory translation english dictionary definition of seafloor spreading theory. The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate. The process that continually adds new material to the ocean floor is seafloor spreading and the continental slope.

Spreading rates determine if the ridge is fast intermediate or slow. Seafloor spreading is happening at b. This creates new ocean crust. In recent years satellite images show a very clear mapping of the seabed and are used extensively in the study and exploration of the ocean floor.