Sea Floor Spreading Drawing

Learn more about sea floor spreading and how it works with this demo.

Sea floor spreading drawing.

The crust overlies the solidified and uppermost layer of the mantle the crust and the solid mantle layer together constitute oceanic lithosphere. The process of sea floor spreading. 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 occurs along mid ocean ridges large mountain ranges rising from the ocean floor.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. The mid ocean ridge is the region where new oceanic crust is created. Sea floors cartoons. 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.

At ridges in the middle of oceans new oceanic crust is created. The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current. Sea floor spreading. Sea floor drawing.

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. Seafloor spreading happens at the bottom of an ocean as tectonic plates move apart. Next they cut out a round drawing of the earth added a fold tab folded that all in half and glued it half of it to the layers and half to the book page making a page within the page.

Earlier theories by alfred wegener and alexander du toit of continental drift postulated that. This video goes over the process of sea floor spreading and the evidence that supports this theory. Free background music no copyright music brvtvs dead times freebackgroundmusic webs. The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.

The seafloor moves and carries continents with it.