* [http://bcs.whfreeman.com/understandingearth5e/content/cat_120/08120-01.htm?v=chapter&i=08120.01&s=08000&n=00120&o=|11000| Animation. with a sample seismic line] | * [http://bcs.whfreeman.com/understandingearth5e/content/cat_120/08120-01.htm?v=chapter&i=08120.01&s=08000&n=00120&o=|11000| Animation. with a sample seismic line] |