Shear 1 : A deformation resulting from stresses that cause contiguous parts of a body to slide relatively to each other in a direction parallel to their plane of contact. (AGI)
U.S. Department of the Interior, U.S. Geological Survey USGS, Landslide Hazards Program, Glossary, Washington, D.C. USA 2014. http://landslides.usgs.gov/learn/glossary.php, (ND/ Lndsld - Amer) {919}
Lynn M. Highland of USGS and Peter Bobrowsky of Geological Survey of Canada, U.S. Department of the Interior, U.S. Geological Survey USGS,Circular 1325, The Landslide Handbook (a Guide to Understanding Landslides), Appendix A: Basic Information about Landslides Landslide, Part 1: Glossary of Landslide Terms, Washington, DC, USA 2013. http://pubs.usgs.gov/circ/1325/pdf/Sections/Append ixA.pdf, (ND/ Lndsld - Amer) {924}