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.
Sea floor spreading definition simple answer.
Navy reserve rear admiral named harry hess came up with an answer.
The motivating force for seafloor spreading ridges is tectonic plate pull rather than magma pressure although there is typically significant magma activity at spreading ridges.
The process of subduction and sea floor spreading can change the size and shape of the oceans.
Ocean currents waves and geophysical fluid dynamics.
At ridges in the middle of oceans new oceanic crust is created.
The seafloor moves and carries continents with it.
Oceanography compound of the greek words ὠκεανός meaning ocean and γράφω meaning write also known as oceanology is the study of the physical and biological aspects of the ocean it is an important earth science which covers a wide range of topics including ecosystem dynamics.
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 answer choices.
Definition theory facts.
Spreading rate is the rate at which an ocean basin widens due to seafloor spreading.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
Sea floor spreading synonyms sea floor spreading pronunciation sea floor spreading translation english dictionary definition of sea floor spreading.
Seafloor spreading happens at the bottom of an ocean as tectonic plates move apart.
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.
Spreading rates determine if the ridge is fast intermediate or slow.
Rather than plowing through seafloor rocks.
Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.
In the theory of plate tectonics the process by which new oceanic crust is formed by the convective upwelling of magma at mid ocean ridges resulting in.
The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american.
Plate tectonics and the geology of the sea.
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.
