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OCEAN100 - EXAM 3 SacramentoGrilo/181 Complete Q’s and A’s
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OCEAN100 - EXAM 3 SacramentoGrilo/181 Complete Q’s and A’s
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OCEAN100 - EXAM 3 SacramentoGrilo/181Complete Q’s and A’s
What do you think the coast is? - -the land of the continent adjacent to the
beach
- coastline - -edge of the coastal cliffs
- wave-cut platforms - -flat eroded bedrock at the beach (due to ocean
wave enegy)
- What made wave-cut platforms flat? - -erosion
- What is a possible cause of wave-cut platforms? - -uplift by plate tectonics,
which could cause it to become a terrace of the coast
- coast - -land extension inland as far as marine influence is seen
- offshore - -extends from breakers to the edge of the continental shelf
- beach - -shore + nearshore; very active
- berm - -dry area at the foot of the coastal cliff ==> sand
- What are the three circumstances where a berm can be flooded? - -1. high
tides
2. tsunamis
3. storm surges (hurricanes)
- notch - -cave cut into base of sea cliff by ocean wave energy
- wave energy - -strong enough to break anything
- What are sources of sand to beach? - -erosion of sand from cliffs; rivers
- Mushroom house at Black's Beach is located on the: - -Coast line
- The lighthouse on a cliff is on the: - -Coast
- During the summer how are waves and beaches? - -waves do not have as
much energy (lower) as a result the beaches are sandy with a wide berm
- During the winter how are waves and beaches? - -wave energy is higher
and as a result beaches are rocky with a more narrow berm (sand is pulled
off from the berm)
, - what causes waves to be different throughout the year? - -seasonal
variations (summer & winter)
- longshore current - -movement of water in the surf zone, parallel to the
coast
- What causes longshore current? - -waves approach beach at an angle,
depending on the storms in the far seas
- Longshore current at Pendleton is ___. - -from left to right
- What way does the Southern California Longshore Current go and why? - -
it goes from North to South. The whole California current moves that way
due to storms and winds
- What gets dumped and trapped in La Jolla Canyon? - -sand
- The Oceanside Compartment transports sediments (sand) from: - -North to
South
- What kind of coast has a lot of sand that gets shoved onto the beach? - -
depositional coast
- What kind of coast is flat and has no much uplifting? - -depositional coast
- What kind of coast has subsidence? - -depositional coast
- What kind of coast has deposit sediment? - -depositional coast
- What kind of islands are on a depositional coast? - -deltas and barrier
islands (normally)
- What type of coast is a depositional coast? - -submergent coast
- What kind of coast is uplifted? - -erosional coast
- What kind of coast has not much sand? - -erosional coast
- What kind of coast has huge promontories? - -erosional coast
- What kind of coast has plate tectonic activity occurring? - -erosional coast
- What kind of coast has cliffs? - -erosional coast
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