More plate tectonics

Pretty awesome History Channel video about the formation of Hawaii, which shows visually what I was explaining about hotspot island formation and plate tectonics. Check it out!

And here's a better example of folding than we saw today in class (from the USGS photo library):

And another on a larger scale:

try to follow the light and dark layers from the mountains on the left side of the image to the right side.

Plate Tectonics, Faults, and Eruptions

Here's a United States Geological Survey video about Mt. St. Helens.

(Video)

And another video here:

You can find more information on a website run by the United States Forest Service (Click Here).

And a video about the San Andreas fault in California that summarizes nicely a lot of what we were talking about today: