How do tectonic plates work?

do

tectonic plates

?

work

The Earth is made upof

layers.

LAND

OCEAN OCEANIC CRUST

UPPER MANTLE

CONTINENTAL CRUST LITHOSPHERE contains the Crust and the upper mantle.

UPPER MANTLE

The outside is the crust, MANTLE

MANTLE

&

below this are the

tectonic plates CORE

CORE

3 types of movement

There are

in plate tectonics

transform plates move past ea

s

ach other

divergent plates move apart convergent

plates move into each other

Pangaea;

a supercontinent formed

270 million

years ago

North Americ

Sou Ame

Eurasia

ca

Africa

uth erica

tra

Au s

Antarctica

lia

India

It broke apart 200 million years ago

This is Earth as we know it.

North American Plate Juan de Fuca

Pacific Plate

Caribbean Plate

Cocos Plate

The

orange

Nazca Plate

South American Plate

shows plate boundaries

Scotia Plate

e

Eurasian Plate Arabian Plate

Indian Plate

Philippine Plate

African Plate Australian Plate

Antarctic Plate

Pacific Plate

Mountains can be formed through convergent plate movement As the plates collide one is forced under another...

t

...This causes the crust to

crumple

and push upwards creating

mountain ridges

Magma and CO2 is then pushed up and the volcano erupts

Rock is heated from the mantle and 2 is released

CO

Volcanic eruption is another example of

convergent

plate movement

Carbon on sea floor gets pushed down as plates move

Oceanic plate is pulled under

Earthquakes can be triggered through

transform

plate boundaries

As one plates move past the other they can become stuck, leading to a build up in pressure.

The sudden release of this pressure causes the earthquake as the plates move into a new position.

s.

Epicenter: Location of Earthquake on surface.

Hypocenter: Location of Earthquake below the surface.

Epicenter

Hypocenter

Bronte and Abigail