This diagram provides evidence of seafloor spreading by showing the ages of ocean floor in the atlantic and eastern pacific oceans.
Detailed sea floor spreading diagram.
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Start studying sea floor spreading 3 2.
The team also reports the exact location of a now extinct seafloor spreading ridge a zone where two tectonic plates began pulling apart 180 million years ago to form the deep basin that became.
The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.
The process of sea floor spreading.
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Further he claimed that continents would be pushed aside by the same forces that cause the ocean to grow.
Labeled diagram of seafloor spreading.
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 occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
The concept of sea floor spreading.
The red colors are the youngest parts of the seafloor where fresh new crust is formed as lava seeps up from the deep interior of the earth at spreading ridges as new crust forms at these spreading ridges older crust colored green in the diagram moves away from.
Students work as individuals.
A model of sea floor spreading teacher s guide ellen p.
The youngest regions are coloured red whereas the oldest regions are coloured blue.
Super detailed interactive 3 d seafloor map.
The mid ocean ridge is the region where new oceanic crust is created.
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Researchers have built a detailed map of the ocean floor s topography by using satellites to spot subtle watery lumps on the ocean s surface.
The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current.
Students will make a paper model illustrating the concept of sea floor spreading and the development of symmetrical magnetic stripes on either side of a mid ocean spreading center.
The concept of seafloor spreading was put forward by h harry hess an american geologist.
