Sea Floor Spreading Games

This is an online quiz called seafloor spreading and subduction there is a printable worksheet available for download here so you can take the quiz with pen and paper.

Sea floor spreading games.

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 is an online quiz called seafloor spreading there is a printable worksheet available for download here so you can take the quiz with pen and paper. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. 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.

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. Search help in finding seafloor spreading online quiz version. Sea floor spreading happens at places where plates are moving away from each other and where the liquid rock from the asthenosphere can come up to the lithosphere. Gilbert reverse 3 40 to 5 3 ma.

On this section of the seafloor the history of earth s magnetic field that is revealed includes the following periods. Earlier theories by alfred wegener and alexander du toit of continental drift postulated that. In this series of games your students will learn about the topography of the ocean floor and the tectonic processes that cause it to constantly change. Matuyama reverse 0 73 to 2 48 million years ago ma gauss normal 2 48 to 3 40 ma.

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. Brunhes normal present time to 730 thousand years ago. Search help in finding seafloor spreading and subduction online quiz version. In the places where the plates are moving apart magma liquid rock moves up into the cracks and solidifies making a new ocean floor just like cake batter would ooze up through.

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