Card Set Information
Are rip currents due to the tides?
How do rip currents form
They form when 2 longshore currents converge
What causes a seismic sea wave?
1. Submarine earthquake
2. Submarine Landslide
3. Volcanic Eruption
4. Meteor Impact
Seismic sea waves move at a velocity of ---- miles per hour.
Label of a foreshore and backshore of a beach.
B. Back shore
What is a spit?
Curving sandbar forms by long shore current
What is a Tombolo
Sandbar that connects and islands to mainland
What is a bay mouth bar?
A split that has grown completely to close off the bay from the sea
Form by low line coast liners.
Erosional features of a shorelie?
3. Sea Cliffs
4. Sea Caves
5. Wave cut terraces
Deposional Features of a Shoreline?
2. Bay barrier bar or mouth bar
4. Barrier Islands
Marine terraces form by _____ erosion?
In a series of elevated terraces, the oldest terrace is the ____ one?
Continental margin represent the _______ edges of the continents.
Put Slope, Shelf , and rise in order. Where ocean is above?
The southern california continental borderland is a series of _____ and banks due to ____ faulting.
What processes, other than marine erosion and sedimentation, have modified the continental shelf?
1. Sea floor spreading
2. Plate tectonics
Are continental shelves uniform in width?
The greatest oceanic depth are located in the:
In terms of plate tectonics, sea floor is destroyed in the:
Trenches are called:
In some subduction zones, an _____ bearing plate is sinking beneath a continental bearing plate.
Ocean ridges are sites were sea floor is being:
Ocean ridges are called ________ because the ocean bearing plates are _______ away from the ridge crest/
1. Spreading centers
2. Diverging or spreading
Submarine canyons are due to:
1. Stream Erosions
2. Turbidity current erosion
3. Traction flow erosion
Are submarine canyons common in California?
1. Hudson Canyon
2. Monterey Canyon
Turbidity currents move down slope under the influence of:
Echo sounders give a continuous _____ of the bottom _____.
What is vertical exaggeration?
Makes slope seem steeper
In order to live coral reefs require:
Three common types of coral reefs:
3. Coral Atoll
How does coral atoll form?
Two main types of deep sea sediments are:
Anything above 600 feet
Deeper then 600 feet.
Lives on bottom
What was the source of the ocean's water?
Volcanic eruptions steam
How old are the oceans?
4.1- 4.3 bya