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