Lifes a Beach Geological Processes Living wih_Trembanis_Date_040810_72

Lifes a Beach Geological Processes Living wih_Trembanis_Date_040810_72

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key terms/concepts: flood tidal delta vs. ebb tidal delta micro, messo, macro-tidal thalweg, shoals, bars spit beach inlet migration influence on barrier shorelines- wave sheltering, transport reversals human impacts- navigation dredging and engineering structures tidal inlets: a tidal inlet is the waterway connection between the sea and a bay, a lagoon, or a river entrance through which tidal and other currents flow tidal inlet settings: occur along sandy or gravel shorelines commonly associated with a tidal delta back barrier environment related to tidal range tidal classification: micro tidal (wave-dominated) – tidal range < 2m meso tidal (mixed- energy) – 3-4m < TR < 2m macro tidal (tide-dominated) – tidal range > 3-4m tidal inlets importance: commerce and recreation o natural breeding grounds for fisheries o lots of nutrients from run off from the land Oregon inlet: interrupt wave-induced transport of sediment along the coast
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This note was uploaded on 08/30/2010 for the course GEOL 120 taught by Professor Arthurctrembanis during the Spring '10 term at University of Delaware.

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Lifes a Beach Geological Processes Living wih_Trembanis_Date_040810_72

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