Plate Techtonics
By: Ethan Frandsen
Transform
This type of boundary causes earthquakes. A popular location for this type of boundary is in California at the San Andres fault. These boundaries are formed when two plates slide past each other.
Divergent (ocean)
This type of boundary causes sea floor spreading. A popular location for this type of boundary is the Mid-Atlantic ridge.
Divergent (continents)
These boundaries are formed when the plates of two continents are pulled apart. It causes rift valleys, volcanoes, and earthquakes. A good example of this type of boundary is Iceland.
Convergent (subduction)
This kind of boundary is formed when an oceanic and continental plate collide. This kind of boundary causes trenches and volcanic mountains. Hawaii is probably the best example of this type of boundary.
Convergent (continent)
The Himalayas are most thought of when think about this boundary. This boundary occurs when to continental plates collide. This boundary causes mountains to be formed.
Pangaea
This is the theory that all of the continents were once one. The continents have been moving away from each other ever sense. Evidence that supports this theory is that similar plant and animal life has been found on multiple continents. Also that the continents fit together like puzzle pieces.
Question answers
- core, mantle, and crust
- The continents are moving slowly away from each other because of convection currents
- Alfred Wegener
- fossil records and the continents fitting together
- new oceanic crust forms through volcanic activity
- Harry Hess
- it shows that new land is being made between boundaries which means that continents are being pushed away from each other
- the hot air lifts the plates
- plates float around on earths surface with convection currents
- transform(rubs) divergent(spreads apart) convergent(comes together) convergent subduction(the oceanic plate is pushed under the continental plate)
- the ring of fire is a highly volcanic active border around the pacific ocean
- transform(earthquake) divergent(seafloor spreading, volcanoes, and rift valleys) convergent(trench, mountain, volcanic mountain)