Clastic Shorelines

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Clastic Shorelines wave-dominated better
studied, most of the GoM shorelines where
we will start tide-dominated
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Wave-Dominated Shorelines have to understand
some of the basics of wave motion Airy Waves
(sinusoidal) v. Stokes Waves (trocoidal) Wave
length (l) Wave Height (h) Wave period Wave
velocity
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Waves change as they enter shallower
water Shoaling Wave Zone wave takes more
elliptical path surface water over takes
deeper water and wave breaks Wave Base--the
depth at which the wave starts feeling
bottom fair weather wave base storm wave
base
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Seasonal Changes generally, larger waves strike
the beach during the winter thus, more erosion
during winter summer beach and winter
beach Also, a correlation between wave energy
and the offshore profile mudline 6-8 m (Texas)
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Wave approach in Texas is typically from
SE sets up longshore drift and convergence zone
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Wave-Dominated Shorelines - Eastern Texas
Coastline
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Barrier Coastlines - Galveston, Island
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Barrier Coastlines
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Typical Shoreface Profile
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Wave-Dominated Shoreface - Offshore Facies
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Wave-Dominated Shoreface - Lower Shoreface Facies
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Wave-Dominated Shoreface - Upper Shoreface Facies
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Wave-Dominated Shoreface - Upper Shoreface Facies
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Wave-Dominated Shoreface - Foreshore (Beach)
Facies
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Associated Continental Deposits - The Strandplain
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Typical Shoreface Parasequence - Summary