Techtonic plates

Question 1

What are the two plates in nz

Answer 1

Australian and pacific plate

Question 2

What plate is subducting under the other

Answer 2

The pacific plate is subducting under thr australian plate

Question 3

Can a technic plate have a oceanic crust and a continental crust

Answer 3

Yes

Question 4

What does Continental crust + Continental crust create

Answer 4

It builds mountains and crumbles land

Question 5

What does ocean crust + ocean crust do

Answer 5

Subduction/ melting

Question 6

How thick is oceanic crust

Answer 6

5-12km

Question 7

How thick is continental crust?

Answer 7

Thicker than oceanic crust with an average of 40km

Question 8

What are the two types of crust?

Answer 8

Oceanic and continental

Question 9

Do earths layers get hotter when you go deeper in it

Answer 9

Yes

Question 10

How does subduction occur

Answer 10

Subductions happens when plate tectonics interact with each other. This happens because plate techtonics move apart from one another which can cause them to collide with another plate.

Question 11

Is continental crust made mostly of less dense and buoyant granites?

Answer 11

Yes

Question 12

Is it true oceanic crust made mostly of young dense basalt rock?

Answer 12

Yes

Question 13

What do plates that get locked together create

Answer 13

Friction

Question 14

Can rocks stand stress

Answer 14

No it causes breakage on the fault line

Question 15

When is stress releashed

Answer 15

When plates move

Question 16

Which way is the pacific plate going when it is subduction

Answer 16

Downwards

Question 17

Whats an epicentre?

Answer 17

Point on the earths surface directly above the focus

Question 18

Whats a focus?

Answer 18

Point of interest

Question 19

What two directions is the alpine fault moving

Answer 19

Vertical and horizontal

Question 20

What is the source of heat energy that creates convection currents in the mantle?

Answer 20

The core

Question 21

Whats a convection current

Answer 21

Large scale movements of hot material in the mantle (including the asthenosphere)

Question 22

Whats a transform boundary?

Answer 22

When plates are scraping past each other

Question 23

Whats a divergent boundary?

Answer 23

When plates are moving apart

Question 24

Whats a convergent boundary

Answer 24

When plates are colliding with each other

Question 25

Whats the alpine fault

Answer 25

It is a transform fault. The australian plate is sliding horizontally towards the north- east, at the same time as the pacific plate is pushing up, forming the southern alps.

Question 26

Is it true that the pacific plate gets warmer the deeper it subducts

Answer 26

Yes

Question 27

True or false does the pp sub-ducts under the ap, assisted by gravity

Answer 27

True

Question 28

How do techtonic plates cause earthquakes?

Answer 28

When tectonic plates, shift, they can get stuck due to the friction. As the pressure/stress builds up, the plates suddenly slip/ release of energy, causing seismic waves that shake the ground and result in an earthquake.