To some, the terms folds, faults, and shear zones might suggest a type of elaborate and cutting-edge style of origami. Those in the know will think immediately of the field of structural geology, and this site is a fine resource for information within that area of geology. Rob Butler, Martin Casey, Geoff Lloyd, and Andrew McCaig, all of whom work in the School of Earth Sciences at the University of Leeds, created these teaching resources. Visitors can start their journey through the site by clicking on the "Basic Principles" section, which contains a nice overview of the patterns of rock organization and how geologists understand the history of rock patterns. The other sections of the site provide basic overviews of shear zones, fault patterns, minor structures, and strain. The site is rounded out by a few virtual field trips, which will be quite helpful for those who can't make it to the Himalayas or the fabled Western Gneiss region of Norway.
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