Authors J. Hadjigeorgiou, D. Milne, and R. Pakalnis introduce different rock mass characterizations and how they play a vital role in rock engineering. This paper discusses the use of three main classification systems by...

This site from the U.S. Search and Rescue Task Force describes landslides and the factors which can cause them. It also provides photographs and illustrations of landslides and their causes. There is an in-depth...

This lesson provides an overview of the various types of interactions between tectonic plates. The discussion uses the analogy of a cracked egg to describe the tectonic plates composing Earth's crust. Other topics...

At this Science at National Aeronautics and Space Administration site, you'll learn about the physics of sand movement and the research done to understand mechanisms of dune migration. The physics and the landforms are...

This fact sheet provides an overview of the hazards presented by landslides and debris flows, particluarly in wet weather conditions in landslide-prone areas. Topics include a discussion of the characteristics of debris...