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.