(1) Plate Tectonic Theory Flashcards

1
Q

It is the solid part of the Earth.

A

Lithosphere

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2
Q

Give the 3 major layers of earth.

A
  1. Crust (outermost layer)
  2. Mantle (middle layer)
  3. core (innermost layer)
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3
Q

This theory states that the Earth’s crust is composed of several broken plates that continuously move either away, past, or towards each other

A

Plate Tectonic Theory

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4
Q

He is an Austrian climatologist, who first noted the theory on the movement of the Earth’s landmasses.

A

Alfred Wegener

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5
Q

This theory states that the Earth was once composed of only one supercontinent called Pangaea.

A

Continental Drift Theory

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6
Q

This theory states that the seafloor is continuously spreading and the extra crust gets recycled into the mantle. This theory is proposed by Harry Hess.

A

Seafloor Spreading Theory

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7
Q

This is where two plates meet.

A

Tectonic Boundary

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8
Q

This is when plates are moving towards each other.

A

Convergent Theory

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9
Q

This is when plates are moving away from each other.

A

Divergent Boundary

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10
Q

This is when plates are sliding sideways past each other.

A

Transform Boundary

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11
Q

The most known tectonic boundaries consist of many active volcanoes and where frequent earthquakes.

A

Pacific Ring of Fire

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12
Q

Give the 6 boundaries of the “Ring”.

A

Pacific Plate, Philippine Plate, Eurasian Plate, Juan de Fuca, Cocos Plates, Nazca Plate

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