www.ngdc.noaa.gov/
Image shows the age distribution of the ocean floor. Click image for
larger view.
www.unavco.ucar.edu/
Image shows the boundaries of the plates and the direction of plate
movement. The size of the arrows indicates the rate of plate movement. Click
image for larger view.
Seafloor Spreading Flash Movie (33.5 MB)
Click image to view, or right click and "Save Target as..."
to download.
Pangea Flash Movie (10.2 MB)
Click image to view, or right click and "Save Target as..."
to download.