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Flashcards in Plate Boundaries Deck (16):
1

What is a destructive plate margin?

Where oceanic and continental plates move towards each other

2

What is created at a destructive plate boundary?

Fold mountains
Volcanos
Earthquakes
Tsunamis

3

What happens at a destructive plate margin?

Denser oceanic plate is forced down into mantle (subducts) where it's destroyed

Subduction forms a deep part of ocean known as a trench

4

What is an ocean trench?

They mark where one plate begins to descend beneath the other , deep part of ocean

5

What is a constructive plate margin?

When two plates move apart

6

What are formed at constructive plate boundaries?

Volcanos
Earthquakes

7

What happens at a constructive margin?

Magma rises to fill gap where plates have moved apart which then cools and new crust is created

8

What is a conservative plate margin?

When two plates move sideways past each other or in the sane direction and different speeds

9

What is created at a conservative margin?

Earthquake

10

What happens at a conservative plate boundary?

Crust isn't created or destroyed

11

Name an example of a constructive boundary?

Mid-Atlantic ridge

12

Name an example of conservative margin?

San Andreas

13

Name an example of a destructive margin?

Pacific-Eurasian plate margin

14

What is a collision margin?

When continental meets continental

15

What is formed at a Collision margin?

Fold mountains

16

What happens at a collision margin?

, continental meets continental same density so neither subducts
Plates forced together lots of pressure =mountains

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