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Plate Tectonics

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Leland Grant

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2y ago
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Cards in this guide (13)
Which theory of plate movement relies on the weight of the subducting crust

Slab-pull

What mechanical layer lies below the lithosphere

asthenosphere

Subduction occurs when

Where the crust is destroyed

In which layer is the pressure the highest

The inner core

What causes the pressure that allows diamonds to form in the mantle

The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.

Which is a method that scientists use to determine the composition of Earth's layers

Comparing the composition of the crust to other bodies in the solar system.

Why can diamonds form in the mantle

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.

Which was an argument used to dispute the theory of plate tectonics

Continents cannot cut through the ocean floor.

What is true about compasses

compass magnets can be deflected by earths magnetic field or other permanent magnets

Which type of fault is under compression

Reverse

Its Thrust!

The continental crust is what

The continental crust is up to 70 km thick.

New crust forms

At ocean ridges

Which of the following is true of permanent magnets

magnetic stuff...

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