Transcript Document

A MAP OF EARTH'S TECTONIC PLATES
DIVERGENT PLATE BOUNDARY:
-Plates move away from the mid-ocean ridge due to the direction the
convection currents in the asthenosphere are traveling.
-Sea-floor spreading happens here.
THE RED SEA:
- This is an example of a Divergent
Plate Boundary.
-The African and Arabian plates are
moving in opposite directions away
from the mid-ocean ridge that runs
through the center of this sea.
-The Red Sea gets slightly larger
each year due to the sea-floor
spreading that happens here.
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CONVERGENT PLATE BOUNDARIES
1. Oceanic-Oceanic
2. Continental-Continental
3. Oceanic-Continental
Questions to think about:
-What happens at each of these types of convergent
boundaries?
-What features will you find on the Earth's surface at
each of these 3 convergent boundaries?
Oceanic-Oceanic Convergent Plate Boundaries
The denser oceanic crust subducts forming a trench above the
subduction zone.
CONTINENT-CONTINENT CONVERGENT PLATE BOUNDARY
Continental crust will not subduct, results in the formation of a mountain range.
Mountain Range
CONTINENT-CONTINENT CONVERGENT PLATE BOUNDARY
- When an oceanic
plate converges with
continental, the
denser oceanic plate
subducts.
- This forms a trench
above the subduction
zone that runs parallel
to the coastline and a
volcanic mountain
range along the
continent's coast.
Oceanic-Continental
Convergent Plate Boundary
When an oceanic plate converges with
continental, the denser oceanic plate subducts.
This forms a trench above the subduction zone
in the ocean adjacent to the coastline and a
mountain range along the continent's coast.
The Andes Mountain Range
The Peru-Chile
Trench
TRANSFORM PLATE BOUNDARY
THE SAN ANDREAS FAULT
-This is an example of a transform plate
boundary.
-The 2 sides of this boundary move passed
each other in opposite-horizontal
directions.
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THE SAN ANDREAS FAULT
-This is an example of a transform plate
boundary.
-The 2 sides of this boundary move passed
each other in opposite-horizontal
directions.