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6 Cards in this Set

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  • Back

Besides atolls, what are the other two coral formations and how would you define them?

1. Fringing reefs: reconnect shore to water surface, living material is at the reef's edge

2. Barrier reefs: separated from land by lagoon, outer edges above water, living material in middle

What is longshore current and how does it impact sediment?

When waves break at a slight angle and distribute some energy way from the direction at which they came... there's a narrow current where sediment can be moved downcoast

During the ____ on a depositional beach accumulates and during the ____ the sand erodes from the beach and is moved to an offshore location.

Summer, winter

Define shore and coast.

Shore: place where ocean meets land

Coast: Larger zone affected by processes that occur at this boundary

In a coastal cell, how is sand permanently lost from the beach?

It's driven by longshore currents into the heads of submarine canyons

What are the 5 factors that cause a change in sea level?

1. amount of water in world ocean can vary

2. volume of ocean's container may vary

3. water occupies more/less volume as temperature varies

4. tectonic motions can change shape of coast

5. effects of water in motion can force it against the shore/draw it away