Sea Floor Spreading Games

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 games. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. 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. Earlier theories by alfred wegener and alexander du toit of continental drift postulated that. 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.

Brunhes normal present time to 730 thousand years ago. 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. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. 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.

Gilbert reverse 3 40 to 5 3 ma. Search help in finding seafloor spreading and subduction online quiz version. Matuyama reverse 0 73 to 2 48 million years ago ma gauss normal 2 48 to 3 40 ma. Seafloor spreading and subduction science games sign me up now.

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. On this section of the seafloor the history of earth s magnetic field that is revealed includes the following periods. Play seafloor spreading games in an arcade style format. 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.

Search help in finding seafloor spreading online quiz version.