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☆☆☆☆☆pole reversals seafloor spreading
Where the crust is destroyed
Shearing
The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.
Normal Thrust
Earth's magnetic orientation is locked into the rock when the rock cools
Wondering slowly with no pattern
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.
every 250,000 years :)
Asthenosphere
compass magnets can be deflected by earths magnetic field or other permanent magnets
Core
magnetic stuff...
