science questions

Plate Tectonic Homework Assignment

On the diagram below, carefully label the following features: Trench, Volcanic Island Arc,

Magma body, Oceanic crust, Lithosphere, and Asthenosphere. With arrows (at least 2

directions), indicate relative direction of motion of the lithosphere. Show where you would

expect to find shallow (S), intermediate (I) and deep (D) focus earthquakes to occur. What type

of convergent plate boundary is depicted in the drawing?

1. What other types of plate boundaries are there (hint: there should be 4 more, 2 related to this

one and two different types)?

2. What type of plate boundary is depicted in the sketch at the top of the next page? (Note: the

animation does not work). Briefly describe what is happening at this type of boundary.

3. Please locate the various types of plate boundaries on the map below (D = divergent; T =

transform; O-O, O-C, O-O = various types of convergent boundaries. Locate the San Andreas

Fault, the East Pacific Rise, and the Andes Mountains on the map. What type of plate

boundaries are each of these features?