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Plate tectonics Flashcards | StudBud
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Plate tectonics
Plate tectonics
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Plate tectonics/boundaries/ theories
Flashcards
20 cards
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Questions
20
Answers
1
What boundary is formed by dividing?
Subdivision boundaries
Divergent boundaries
Dividing boundaries
Convergent boundaries?
2
What is the rigid outermost layer of earth's outer crust?
The lithosphere
The mantle
The asthenosphere
The Ionosphere
3
What is the subduction zone?
Area where the lithosphere sinks under the asthenosphere
The are where new crust is made by the cooling of magma
The area where the ocean has the highest salinity
the area where two plates meet
4
What is he result of a divergent boundary?
Cracks in the earth's crust known as faults
Volcanic mountain ranges
Continental and oceanic crust
Mid ocean ridges/new crust and rift valleys
5
What boundary is is formed by sliding past one another?
Divergent boundary
Transform boundary
Lithospheric boundary
Convergent boundary
6
What two types of plates make a transform boundary?
Continental-continental
Oceanic-oceanic
Continental-oceanic
Continental or oceanic
7
What is the asthenosphere?
The rigid outermost layer of the outer crust
The area where oceanic and continental plates meet
The hotter upper mantle below the lithospheric plate
Cracks in the earth's crust
8
What is the result of a convergent boundary?
Mid ocean ridges and Rift Valley
Volcanic mountain ranges or deep sea trenches, or islands
Deserts and fresh water rivers
Oceans and subduction zones
9
What type of boundary caused this; What is the geological feature made?
Transform; faults
Convergent; island arcs
Divergent; mid ocean ridges and new crust
Oceanic-oceanic; rift valley
10
What is the result of a transform boundary?
Cracks in the earth's faults known as
Subduction zones near coastlines
Volcanic mountain ranges and mountains
Deep sea trenches and islands/island arcs
11
What is the plate tectonics theory?
Theory ofhow divided plates move due to convection in asthe.
Theory of how continents used to be one large landmass
Theory of how the world started from a Big Bang
Theory of how force has 3 laws.
12
What boundary is formed by colliding?
convergent boundary
Divergent boundary
Convergent transform boundary
colliding boundary
13
What was Wegner's theory called?
Continental drift theory
Plate tectonics theory
Modern theory
Pangaea theory
14
What is sea floor spreading?
A crack in the earth's crust where magmacools on the surface
The area where crust sinks into the mantle
How continents drift
Convection currents in the mantle drift continents
15
What boundary is shown?
Convergent boundary
Transform boundary
Divergent boundary
Continental plate
16
How was Henry Hess's theory different from Wegener?
Hess's theory did not believe in Pangaea
There are no differences in the theories
It differs because Hess' theory says how plates broke apart
They both believed that the continents drifted
17
What are the three types of boundaries called?
Continental,Oceanic,Oceanic-continental
Convergent, divergent, transform
colliding,sliding,dividing
Westerlies, easterlies, trade winds
18
What are the three types of movement of the plate boundaries?
Continental,oceanic, continental-oceanic
Subdividing,smashing,sliding
dividing, colliding, and sliding
Weathering, erosion, deposition
19
Why did Wegener suspect that the continents had once been together?
different countries had the same boundary movement
Continents experienced the same wind patterns as others
many continents' coastlines fit together
The same type of fossils were found on different continents
20
What type of boundary is shown?
Divergent boundary
Convergent boundary
Transform boundary
Lithospheric boundary
