Divergent Boundaries
Convergent Boundaries
Transform Boundaries
Sea Floor Spreading
Potluck
100
The stress forces that acts on divergent boundaries at mid-ocean ridge.
What is ridge push?
100
These are created when continental-continental crust collides
What are folded mountain ranges?
100
The force associated with asthenosphere moving and bringing the lithospheric crust with it.
What is basal drag?
100
The technology used to map the ocean floor
What is sonar? echo sounding
100
The theory that Earth's plates are in constant, slow motion
What is the theory of plate tectonics?
200
When continental-continental crust diverges, these landforms are created.
What is rift vallies?
200
Valleys in the ocean floor created by the collision of oceanic-oceanic crust or oceanic-continental crust and found at the subduction zones.
What are trenches?
200
The way the plates move in relation to one another at a transform boundary
What is slide past each other in two opposite directions?
200
This pattern in rocks on the ocean floor shows us the Earth's magnetic field has reversed several times
What is magnetic striping
200
Volcanoes that do not develop along plate boundaries are a result of this phenomenon
What are mantle plumes/hot spots
300
An underwater chain of mountains created where oceanic-oceanic crust diverges
What is the mid-ocean ridge?
300
A chain of islands formed when oceanic-oceanic crust converges
What are volcanic island arcs?
300
The event that can take place when stress builds up and finally breaks at a transform boundary
What is an earthquake?
300
Daily Double !!! Geologist and Navy Captain who mapped the ocean floor and discovered sea floor spreading
Who is Harry Hess
300
Convergent Oceanic - Oceanic crust at the Pacific Plate and Eurasia that creates volcanic island arcs - give example
What is Japan?
400
This land form in Africa is created as the African Plate and the Somalia Plate diverge.
What is the East African Rift Valley (Great Rift Valley)?
400
The process where the denser crust is forced back into the mantle to be recycled
What is subduction?
400
This fault is near the place where the North American and Pacific Plate share a transform boundary
What is the San Andreas Fault?
400
Daily Double !!! The search for U-boats during this war led to the discovery of sea floor spreading
What is World War II?
400
The youngest rocks on the ocean floor are located ____. a. near continents c. far from mid-ocean ridges b. at mid-ocean ridges d. near Asia
What is at mid-ocean ridges?
500
The only place the mid-ocean ridge (Mid - Atlantic Ridge) rises above the water
What is Iceland?
500
An example of volcanic mountains formed by the collision of continental-oceanic crust. (Nazca Plate - South America Plate)
What are the Andes Mountains?
500
Daily Double!!! This does not happen at transform boundaries
What is subduction?
500
The hypothesis that continents have slowly moved to their current locations is called
What is the theory of continental drift?
500
This mountain range formed when India converged with Eurasia
What is the Himalayas?
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