105-23 10-17 Coastlines, beaches

Longshore drift when currents occur along shorelines

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Unformatted text preview: shore drift — when currents occur along shorelines there is a preferential transport of sediment along the coast. When wind-driven waves and surf come ashore obliquely they transport sand along the shore (see above) Figure 20.4 Figure 20.11b Longshore current produces longshore drift of sand A linear coastline where waves strike it obliquely, not perpendicularly … Figure 20.11 Submarine canyons such as Redondo Canyon (RC) trap and funnel beach sands into the deeper water of San Pedro basin between the coast and Catalina island. RC RC...
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This note was uploaded on 05/11/2013 for the course GEOL 105Lg taught by Professor Davis,platt during the Fall '07 term at USC.

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