Key Words Flashcards

1
Q

Normal polarity

A

The magnetic field around the earth is the same as today

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2
Q

Reverse polarity

A

The magnetic field around the earth is opposite to today

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3
Q

Asthenosphere

A

A ductile layer of the mantle that can flow allowing the plates to move

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4
Q

Lithosphere

A

The upper part of the mantle

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