geo 121 lab about coastal processes

Background:

The purpose of this lab is for you to explore coastal processes. A streamtable is modified to represent a

coastal zone. The streamtable is set to a very low slope, which is representative of conditions in many

coastal zones, including in the south-central United States where the Mississippi River enters the Gulf of

Mexico.

Coastal Terrace Formation

When the relationship between mean sea level and the land surface is relatively stable over long periods

of time (i.e. no sea level changes, and no uplift or subsidence of the land), the energy dissipated by waves

is concentrated at one elevation along the land-sea interface. This produces an erosional feature that was

shown in class called a wave-cut terrace, or coastal terrace.

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