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Geography > Plate Tectonics > Flashcards

Plate Tectonics Flashcards

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1
Q

What types of Divergent/Constructive boundaries are there?

A

Oceanic-Oceanic
Continental-Continental

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2
Q

What is an example of a Divergent Oceanic-Oceanic boundary?

A

Mid-Atlantic ridge at Iceland

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3
Q

What is an example of a Divergent Continental-Continental boundary?

A

African Rift Valley/Red Sea

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4
Q

What hazards occur at a Divergent Oceanic-Oceanic boundary?

A

Rising convection currents bring magma to the surface, resulting in small, basaltic eruptions, creating new, oceanic plate
Minor, shallow earthquakes

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5
Q

What hazards occur at a Divergent Continental-Continental boundary?

A

Caused by geologically recent mantle plume splitting a continental plate to create a new ocean basin.
Basaltic volcanoes + minor earthquakes

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6
Q

What types of Convergent/Destructive boundaries are there?

A

Continental-Continental
Oceanic-Oceanic
Oceanic-Continental

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7
Q

What is an example of a Convergent Continental-Continental boundary?

A

Himalayas

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8
Q

What is an example of a Convergent Oceanic-Oceanic boundary?

A

Aleutian Islands, Alaska

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9
Q

What is an example of a Convergent Continental-Oceanic boundary?

A

Andean Mountains

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10
Q

What hazards occur at a Convergent Continental-Continental boundary?

A

The collision of 2 continental land masses creating a mountain belt as the landmasses crumple.
Infrequent major earthquakes distributed over a wide area

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11
Q

What hazards occur at a Convergent Oceanic-Oceanic boundary?

A

One oceanic plate is subducted beneath another, generating frequent earthquakes and a curving chain of volcanic islands (island arc) + (violent eruptions)

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12
Q

What hazards occur at a Convergent Continental-Oceanic boundary?

A

An oceanic plate is subducted under a continental plate, creating a large volcanic range, frequent large earthquakes + violent eruptions

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13
Q

What types of Conservative/Transform boundaries are there?

A

Oceanic-Continental

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14
Q

What is an example of a Conservative Oceanic-Continental boundary?

A

California, San Andreas Fault

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15
Q

What hazards occur at a Conservative Oceanic-Continental boundary?

A

Plates slide past each other, along zones known as transform fault.
Frequent, shallow earthquakes but no volcanic activity

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Geography (6 decks)

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