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Map Of The Plate Boundaries
Plate Boundaries
• Convergent Boundary– –mountain building – India Himalayas
• Divergent Boundary– –rift apart– Mid Atlantic Ridge
• Transform Boundary– –slide by each other – San Andreas fault
Plate Boundaries
Divergent Boundaries
• Iceland has a divergent plate boundary running through its middle
Example:
1. Oceanic-OceanicEx: causing an island arc
2. Oceanic-Continental
Ex: causing volcanoes
3. Continental – ContinentalEx: mountains
Convergent Boundaries
Himalayas
• When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone.
• The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench.
• The worlds deepest parts of the ocean are found along trenches.
- The Mariana Trench is 11 km deep!
• Where plates slide past each other
Transform Boundaries
Example: San Andreas transform fault
Plate Boundaries On The Move
• Hot mantle plumes breaching the surface in the middle of a tectonic plate
Hot Spots
The Hawaiian island chain are examples of hotspot volcanoes.
The tectonic plate moves over a fixed hotspot forming a chain of volcanoes. The hot spot does not move, but the plates do.
The volcanoes get younger from one end to the other.
Exit Slip Quiz• Using the vocabulary below, name the type of
boundary shown. A. Convergent, B. Divergent, or C. Transform
1. 3.2.
Exit Slip Quiz• Using the vocabulary below, name the type of convergent
boundary shown. A. Oceanic – Oceanic,
B. Continental - Continental, or C. Oceanic – Continental
5.4.
Exit Slip Quiz6. Continental – Continental convergent plate boundaries make
A. trenches B. ridges C. mountains
7. The San Andreas Fault is an example which plate boundaryA. convergent B. divergent C. transform
8. Subduction occurs at A. ridges B. trenches C. hot spots
Exit Slip Quiz6. Which island is the oldest? A or B7. Which island is the youngest? A or B
B.A.
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