Documents From Nanson and Croke, 1992. From Everitt, B.L., 1968. Use of cottonwood in an investigation of...

Slide 1 From Nanson and Croke, 1992 Slide 2 From Everitt, B.L., 1968. Use of cottonwood in an investigation of recent history of a flood plain. American Journal of Science…

Documents Schumm and Licthy (1963) Figure from Ritter et al., 2002.

Schumm and Licthy (1963) Figure from Ritter et al., 2002 Thresholds (after Schumm, 1973) Extrinsic: limits of equilibrium exceeded due to an external factor (e.g., climatic…