The concept of seafloor spreading was put forward by h harry hess an american geologist.
Detailed sea floor spreading diagram.
Super detailed interactive 3 d seafloor map.
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.
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He suggested that new sea floor forms at the oceanic ridges and spread outwards from the line of origin.
The youngest regions are coloured red whereas the oldest regions are coloured blue.
Over time new.
The concept of sea floor spreading.
A model of sea floor spreading teacher s guide ellen p.
The process of sea floor spreading.
The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current.
The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
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Further he claimed that continents would be pushed aside by the same forces that cause the ocean to grow.
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.
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Start studying sea floor spreading 3 2.
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.
This diagram provides evidence of seafloor spreading by showing the ages of ocean floor in the atlantic and eastern pacific oceans.
The mid ocean ridge is the region where new oceanic crust is created.
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.
Students work as individuals.
