This site contains visualizations for stress and strain analysis. These visualizations allow the student to create and view detailed illustrations and animations of the mathematics of stress and strain. Topics include lithostatic stress, the stress tensor, the Mohr Circle of stress, pure and simple shear, the principle strain directions, incremental versus finite strains, strain path dependencies, ... Full description.

This page has several animated cross sections which illustrate common structural models. The animations illustrate the development of fault bend folds, duplexes, fault propagation folds, and normal faults. Full description.

This site, which accompanies an introductory structural geology class at the University of Leeds, UK, contains information on faults. Topics include normal faults, thrust faults, strike-slip faults, faults and stress, and soft-linked fault systems. The site features explanations of the three basic types of faults with informative diagrams and a photo gallery. Full description.

This site features a series of four Macromedia Flash animations. These simulations illustrate the formation of basic geologic structures, including normal faults, thrust faults, strike-slip faults and various styles of folds. The animations were designed to complement the chapter on geologic structures in "Physical Geology" by Plummer, McGeary and Carlson. Full description.

This website, from the 1998 PBS "Savage Earth" series, shows seismic waves from an earthquake that took place in Bolivia in 1994. The animation illustrates the way the earth's surface, core/mantle boundary and inner/outer core boundary reflect and deflect P- and S-waves. Full description.

This resource is a printable 2 degree equal angle stereonet in PDF format. Full description.

This web site features eight Quicktime animations showing the involvement of salt layers in the development of complex structures. The animations are accompanied by descriptions, interpretations and a list of references. The animations were generated by the Bureau of Economic Geology at the University of Texas. Full description.

This tutorial is part of the series of investigations and visualizations on the "Exploring Earth" website, which was designed to accompany "Earth Science," a high school textbook. This tutorial on stress covers brittle and ductile deformation, stress simulations, and geologic structures. Very clear animations and field photographs illustrate this tutorial. Students can move the cursor over each photograph ... Full description.

This resource is a 2002 article in the on-line journal "Virtual Explorer." The site features text and numerous animations of analogue modeling experiments of fold and thrust belts. Topics include the effects of a thin viscous layer on structural evolution, brittle-viscous and brittle rheological domains, transfer zones, and lateral and oblique ramps. These animations provide a students and teachers ... Full description.

This web site is maintained under University of Michigan's course GS351/451 and is provided as an educational service (to users of EarthStructure, a structural geology text book). It includes links to useful animations, interactive and image sites, software and virtual structural geology field trips. Full description.