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The only adequate mechanisms for continental drift which have yet been suggested are based on the activity of convection currents in the Earth's mantle.
Here, he suggested that the dense oceanic crust is subducting below the less dense continental plates, where it is then to be melted and recycled within the mantle.
THE study of palæomagnetism has necessitated the contemplation of continental drift and the most plausible explanation appears to be convection in the mantle 1,2. It has been assumed that the ...
Continental drift theory introduced the idea of moving continents. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.
Seismic imaging revisits an old question: What drives continental drift? Observations suggest mantle flow dragged oceanic plate, not vice versa.
Drifting of the large tectonic plates and the superimposed continents is not only powered by the heat-driven convection processes in the Earth's mantle, but rather retroacts on this internal ...
Continental crust is generally higher in silica, which makes it less dense. This low density makes continents too buoyant to be pulled back into the mantle and they remain floating near the surface.
The film discusses the theory of plate tectonics and continental drift, explaining how the Earth's surface has changed over time. It highlights the concept of tectonic plates moving due to ...
Mantle convection is responsible for the movement of tectonic plates on Earth's surface. It is basically the circulation of material in the mantle caused by heat from Earth's core.
Drifting apart: New study in earth science frontiers explains the driving force behind continental drift In new study, researchers propose a new model for continental drift based on the separation ...
Continental crust is generally higher in silica, which makes it less dense. This low density makes continents too buoyant to be pulled back into the mantle and they remain floating near the surface.