Geography 12 Tectonic Plates > Tectonic Exercise > Flashcards

Tectonic Exercise Flashcards

(7 cards)

Study These Flashcards
1
Q

Ocean basins vs continents

A

Ocean basins: older denser basalts

Continents: younger les dense basalts

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2
Q

Upper part of mantle

A

Lithosphere

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3
Q

What makes plates move?

A

Convection currents in the asthenosphere

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4
Q

Theory of Isostasy

A

Lighter the continental mass the more they will float/rise

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5
Q

Supercontinent

A

Pangea

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6
Q

Continental drift

A

How Pangea separated

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7
Q

How much are plates moving

A

2-3cm a year

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Geography 12 Tectonic Plates
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