Glossary of Terms

Glossary of Terms

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R
Unconformity
Unconsolidated Material
Undercurrent
Undercutting
Undertow
Undulation
Unimodal Sediment
Upcoast
Updrift
Upland
Uplift
Uprush
Upwelling
UNDERCUTTING (un-der-cut'-ting)

The removal of material at the base of a steep slope or cliff or other exposed rock by the erosive action of falling or running water (such as a meandering stream) or of waves along the coast.

Sources:

Bates, R.L. and J.A. Jackson (editors).  1995.  Glossary of Geology CD-ROM, Third Edition.  American Geological Institute, Alexandria, VA.

Jackson, J.A. (editor), 1997.  Glossary of Geology, Fourth Edition.  American Geological Institute, Alexandria, VA.

Szuwalski, A. and A. Morang, 2001. Glossary of Coastal Terminology. In: Morang, A. (editor), Coastal Engineering Manual, Part VII-3, Lists (Glossary, Symbols, References), Engineer Manual 1110-2-1100, U.S. Army Corps of Engineers, Washington, DC (http://chl.erdc.usace.army.mil/CHL.aspx?p=s&a=ARTICLES;102 , October 3, 2001).

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