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☆☆☆☆☆Slab-pull
asthenosphere
Where the crust is destroyed
the mantle and core are composed of different material
P waves refract as they travel through Earth. The shadow zone exists because of seismic waves. The shadows show when the earth spins around.
The inner core
The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.
Comparing the composition of the crust to other bodies in the solar system.
The weight of the rocks above the mantle results in high pressure.
Diamonds need high temperatures and pressure to form from carbon. Diamonds form in the mantle in certain zones where conditions are right for them to do so.
There just happens to be the right critical temperature-pressure-mineral environment in the mantle in certain zones for their formation.
Continents cannot cut through the ocean floor.
compass magnets can be deflected by earths magnetic field or other permanent magnets
Reverse
Its Thrust!
Continental rise is something the passive continental margin has that the active margin does not
The continental crust is up to 70 km thick.
At ocean ridges
magnetic stuff...
