coastal part 2

coastal part 2 - Two General Types of Coasts 1 Shorelines...

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Two General Types of Coasts: 1. Shorelines of emergence and erosion 1. Shorelines of submergence and deposition coasts 4
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These coasts cover ~80% of the World’s coastlines Masse link and Hughes, 2003 Characteristics Also called rocky coasts Tectonically active Large waves Leading plate edges High relief Common to US west coast Shorelines of Emergence and Erosion 4
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Sea Arch Bali, Indonesia 4
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Sea Stacks at 12 Apostles Victoria, Australia
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Marine Terrace Fort Ross, CA Wayne Engstrom Land formally at sea level (wave platform) that has experienced uplift and/or sea level retreat Formation process….
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Sea Cliffs County Clare, Ireland 5
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Wave Cut Notch Erosion zone of lower cliff from mechanical and chemical weathering (abrasion) of waves Erosion reduces cliff integrity
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Shore Platforms FYI: 0.1 – 0.2 mm growth/yr – decreases with
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Marine Terrace Wayne Engstrom
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Submergent and Depositional 5
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A place along the coast where sediment is in motion, deposited by waves and
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coastal part 2 - Two General Types of Coasts 1 Shorelines...

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