Processes + Associated Lanforms (from plat boundaries) Flashcards

1
Q

What are the diff. processes + landforms associated w plate boundaries?

A
  • sea floor spreading
  • subduction
  • fold mountain building
  • ocean ridges
  • ocean trenches
  • volcanic island arcs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What landforms + processes occur at divergent (constructive) plate boundaries?

A
  • C-C: earthquakes, volcanoes, rift valleys
  • O-O: ocean ridges, earthquakes, volcanoes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What landforms + processes occur at conservative (transform) plate boundaries?

A
  • earthquakes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What landforms + processes occur at convergent (destructive + collision) plate boundaries?

A

Destructive:
- O-O: ocean trenches, island arcs, earthquakes, volcanoes
- C-O: fold Mts., earthquakes, volcanoes

Collision:
- C-C: fold Mts., earthquakes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is sea floor spreading?

A
  • new land forming on ocean floor by lava filling gaps at a constructive boundary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is subduction?

A
  • process where a denser, O plate is plunged beneath a less dense C plate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How are fold mountains formed?

A
  • denser O plate subducts below C plate
  • sediment is pushed upwards causing C plays to fold + buckle into fold mountains
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are ocean ridges?

A
  • lines of mainly mountains formed where 2 O plates are separating
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How are ocean trenches formed?

A
  • denser O plate subducts below C, leaving a deep ocean trench
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How are volcanic island arcs formed?

A
  • heavier plate subducts
  • build up pressure causes magma to rise from melting plate
  • lava cools creating island arcs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly