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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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Practice quiz
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Questions
20
Answers
1
How was Henry Hess's theory different from Wegener?
They both believed that the continents drifted
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
2
What is the rigid outermost layer of earth's outer crust?
The asthenosphere
The Ionosphere
The mantle
The lithosphere
3
What is the result of a transform boundary?
Volcanic mountain ranges and mountains
Subduction zones near coastlines
Deep sea trenches and islands/island arcs
Cracks in the earth's faults known as
4
What boundary is shown?
Convergent boundary
Transform boundary
Divergent boundary
Continental plate
5
What type of boundary caused this; What is the geological feature made?
Oceanic-oceanic; rift valley
Convergent; island arcs
Divergent; mid ocean ridges and new crust
Transform; faults
6
What is sea floor spreading?
Convection currents in the mantle drift continents
How continents drift
The area where crust sinks into the mantle
A crack in the earth's crust where magmacools on the surface
7
What is he result of a divergent boundary?
Continental and oceanic crust
Volcanic mountain ranges
Cracks in the earth's crust known as faults
Mid ocean ridges/new crust and rift valleys
8
Why did Wegener suspect that the continents had once been together?
many continents' coastlines fit together
different countries had the same boundary movement
The same type of fossils were found on different continents
Continents experienced the same wind patterns as others
9
What was Wegner's theory called?
Modern theory
Plate tectonics theory
Continental drift theory
Pangaea theory
10
What are the three types of boundaries called?
colliding,sliding,dividing
Continental,Oceanic,Oceanic-continental
Convergent, divergent, transform
Westerlies, easterlies, trade winds
11
What two types of plates make a transform boundary?
Continental or oceanic
Continental-continental
Continental-oceanic
Oceanic-oceanic
12
What boundary is is formed by sliding past one another?
Divergent boundary
Convergent boundary
Lithospheric boundary
Transform boundary
13
What boundary is formed by dividing?
Divergent boundaries
Subdivision boundaries
Convergent boundaries?
Dividing boundaries
14
What is the asthenosphere?
The area where oceanic and continental plates meet
The hotter upper mantle below the lithospheric plate
Cracks in the earth's crust
The rigid outermost layer of the outer crust
15
What boundary is formed by colliding?
Convergent transform boundary
convergent boundary
colliding boundary
Divergent boundary
16
What is the subduction zone?
the area where two plates meet
The area where the ocean has the highest salinity
The are where new crust is made by the cooling of magma
Area where the lithosphere sinks under the asthenosphere
17
What are the three types of movement of the plate boundaries?
Subdividing,smashing,sliding
Continental,oceanic, continental-oceanic
Weathering, erosion, deposition
dividing, colliding, and sliding
18
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 force has 3 laws.
Theory of how the world started from a Big Bang
19
What type of boundary is shown?
Divergent boundary
Lithospheric boundary
Convergent boundary
Transform boundary
20
What is the result of a convergent boundary?
Oceans and subduction zones
Deserts and fresh water rivers
Volcanic mountain ranges or deep sea trenches, or islands
Mid ocean ridges and Rift Valley
