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Plate Boundary Interactions Flashcards

1
Q

What are the 3 types of plate boundary?

A

Convergent, divergent and transform

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2
Q

Plates separate

A

divergent plate boundary

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3
Q

Plates come together

A

convergent plate boundary

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4
Q

Plates slide past one another

A

transform plate boundary

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5
Q

TRUE OR FALSE

As plates move apart, water fills up the gap.

A

FALSE, magma fills up the gap

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6
Q

IDENTIFY

__________ has a divergent plate boundary running through its middle.

A

Iceland

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7
Q

What country is an example of a continental rifting?

A

Iceland

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8
Q

What are the 3 styles of convergent plate boundaries?

A

> Continental-continental collision
Oceanic-oceanic collision
Continental-oceanic collision

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9
Q

What style of convergent plate boundary forms mountains?

A

Continental-continental collision

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10
Q

TRUE OR FALSE

Himalayas is an example of a continental-continental collision.

A

TRUE

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11
Q

What style of convergent plate boundary has a subduction zone?

A

Continental-oceanic collision

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12
Q

IDENTIFY
Oceanic plates _________ underneath the continental plate. Ocean plate heats and ________. The melt rises forming ___________.

A

subduct, melts, volcanoes

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13
Q

TRUE OR FALSE

When 2 oceanic plates collide, one runs over the other which causes it to sink into the mantle forming subduction zone.

A

TRUE

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14
Q

IDENTIFY

The subducting plate is bent downward to form a very deep depression in the ocean floor called a __________.

A

trench

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15
Q

TRUE OR FALSE

The worlds deepest parts of the ocean are found along the middle.

A

FALSE, along trenches

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16
Q

Region with active volcanoes and frequent earthquakes.

A

Pacific Ring of Fire

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17
Q

Volcanoes are formed by 3 ways. What are those?

A

By subduction, rifting and hotspots

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18
Q

Hot mantle plumes breaching the surface in the middle of a tectonic plate.

A

Hotspot/hotspot volcanoes

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19
Q

TRUE OR FALSE

Earthquakes are randomly distributed over the globe.

A

FALSE, not randomly distributed

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20
Q

IDENTIFY

At the boundaries between plates, __________ causes them to stick together.

A

friction

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21
Q

TRUE OR FALSE

When built up, energy causes them to break, earthquakes occur.

A

TRUE

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22
Q

These are areas between tectonic plates where the plates interact.

A

Plate boundaries

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23
Q

As the plates interact, fractures on the Earth’s crust develop. What do you call those fractures?

A

faults

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24
Q

TRUE OR FALSE

When 2 plates move away from each other, it forms a gap or a rift between them.

A

TRUE

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25
What is being created when the gap eventually widens?
rift valley
26
What are the 2 types of divergent boundary?
oceanic-oceanic and continental-continental
27
Divergent boundaries between 2 oceanic plates.
Oceanic-oceanic divergent plate boundary
28
It refers to the mountain ranges under water.
mid-oceanic ridges
29
What is being formed in places where molten lava or magma can move up and fill the gap?
volcanic islands
30
The molten lava that rises eventually cools and forms part of the ocean floor. This is called?
Seafloor spreading or ocean floor spreading
31
This happens between 2 continental plates.
continental-continental divergent plate boundary
32
TRUE OR FALSE | Any continent or landmass above a divergent plate boundary will be torn apart into distinct landmasses.
TRUE
33
TRUE OR FALSE | At divergent plate boundaries, surrounding waters will fill the space between them and later become an ocean.
TRUE
34
IDENTIFY | Iceland itself lies on top of a divergent boundary between _____________ and _____________.
North American plate and Eurasian plate
35
Divergent plates interaction results to?
Formation of volcanic island arc, mid-oceanic ridges, rift valley and earthquakes
36
It is the opposite of the divergent plate boundary. The plates crash into each other. 2 plates slide towards each other.
Convergent plate boundary
37
After the collision in convergent plate boundaries, it has the same results.
FALSE
38
What is the reason why the results of convergent plate boundaries yields different outcomes?
It depends on the type of plates or crust that collide.
39
Convergent plate boundary can form either?
subduction zone or orogenic belt
40
If one plate moves underneath the other, what is this?
Subduction zone
41
If two plates simply collide and compress, what is this?
Orogenic belt
42
What are the 3 types of convergent plate boundaries?
continental-continental, oceanic-oceanic and continental-oceanic
43
When 2 continental plates collide, neither of them sink below the other hence, no subduction zone is formed.
Continental-continental convergent plate boundary
44
Why they are uneven elevations in the form of mountain ranges?
Because the crusts push each other upwards or sidewards.
45
When 2 oceanic plates converge.
Oceanic-oceanic convergent plate boundary
46
IDENTIFY | When 2 oceanic plates converge, a ___________ is formed.
subduction zone
47
OLDER PLATE OR YOUNGER PLATE | Which is subducted in oceanic-oceanic convergent plate boundary?
OLDER PLATE
48
Why older oceanic plate is subducted rather than the younger plate?
Because it is more dense
49
IDENTIFY | Once the oceanic plate sinks, its rocks melt which forms and fuels a magma chamber, forming _____________.
volcanic arc
50
How many plates collided that formed the archipelago of Japan?
4 different plates
51
TRUE OR FALSE | As the subduction zone were formed, oceanic trenches are also created.
TRUE
52
What do you call the long and narrow depressions in the ocean floor?
Oceanic trenches
53
This happens between an oceanic and continental plates that eventually collides.
Oceanic-continental convergent plate boundary
54
OCEANIC CRUST OR CONTINENTAL CRUST | Which is being subducted?
Oceanic crust
55
Where does an oceanic trench formed?
In the area of convergence
56
Why an oceanic crust is subducted?
Because it is denser compared to the continental crust.
57
What is being created when the subducted crust melts and forms the magma chamber. The magma then escapes to the earth's surface.
Continental volcanic arc or volcanic mountain
58
Convergent plates interaction results to?
Formation of volcanic arc/volcanic mountain, ocean trenches, mountain ranges, volcanoes and earthquakes
59
TRUE OR FALSE | Aside from the crashing into each other or moving apart, plates can also slide with each other.
TRUE
60
It is an area where plates slide past each other.
Transform plate boundary
61
On what places do transform boundaries are found?
ocean floor and mid-oceanic ridges
62
TRUE OR FALSE | There are structures formed in transform boundaries.
FALSE, no structures are formed
63
Why there are no structures formed in transform boundaries?
Because the plates are just sliding past one another.
64
Transform plate boundary is also called as?
Conservative plate boundary
65
Why the transform plate boundaries are also called as conservative plate boundary?
Because the energy is being conserved due to the sliding of plates.
66
What is the most famous transform boundary?
San Andreas Fault found in California, USA
67
What are the 2 plates involved in the San Andreas Fault?
North America and Pacific plate
68
Transform plates interaction results to?
Earthquakes
69
TRUE OR FALSE | The result of a transform plate boundary involves volcanoes, mountains and earthquakes.
FALSE, only earthquakes
70
TRUE OR FALSE | San Andreas fault is stocked due to the sliding movement, but there are still continuous movements that cannot be felt.
TRUE
71
IDENTIFY | San Andreas fault has a ___________ that will become a ___________ with a result of a very strong earthquake.
potential energy, kinetic energy
72
TRUE OR FALSE | At hotspot regions, there are holes in its middle where magma exits.
TRUE
73
Also called spreading centers.
Divergent boundaries
74
2 plates grind past each other without the production or destruction of the lithosphere.
Transform plate/fault boundaries
75
Continuous elevated zones on the floor of all major ocean basins.
Oceanic ridges
76
Deep faulted structures found along the axes of divergent plate boundaries. They can develop on the seafloor or on land.
Rift valleys
77
IDENTIFY | Seafloor spreading produces _____________.
new oceanic lithosphere
78
What is formed when spreading centers develop within a continent, the landmass may split into 2 or more smaller segments.
Continental rifts
79
IDENTIFY | At the time of formation at transform plate boundary, they roughly _________ the direction of plate movement.
parallel
80
They aid the movement of oceanic crustal material.
Transform plate boundary

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