slickenside
A slickenside, in pedology, is a term describing the surfaces of the cracks produced in soils containing a high proportion of swelling clays. Slickensides are a type of cutan.
In geology, the term refers to a smoothly polished surface caused by frictional movement between rocks. The plane may be coated by a mineral and will show evidence of striation in the direction of movement.
The Roebuck Trout Effect
The Roebuck Trout Effect is a term used to describe the smooth polished rock surface caused by fault movement as the texture is similar to that of a trout which is smooth when stroked from head to tail but rougher from tail to head.
References
- Allaby, A. and Allaby, M. (Eds). 1990. The Concise Oxford Dictionary of Earth Sciences. New York, USA: Oxford University Press.
- McDonald, R. C. et al. 1990. The Australian Soil and Land Survey Field Handbook, 2nd Ed. Melbourne, Australia: Inkata Press.
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