Why are there so many volcanoes located around the Ring of Fire?

There are many subduction zones found there

How do stratovolcanoes form?

Hot rock fragments weld together creating the rigid cone shape

What makes the most explosive volcanic eruption?

Magma containing a lot of silica

What role does water play in creating magma?

Water is released from the slab, causes mantle material to partially melt

The series of volcanoes and the Hawaiian Islands provide evidence that ____.

The Pacific Plate is moving over a hot spot

studbud

Chapter 11 Review

14 termsStudBud Administration190 plays

Imported from external platform

Flashcards14 cardsFPractice quizPHost liveL

Questions 14

Answers

1
Which of the following happens when two oceanic plates collide?
Older denser plate dives beneath the younger less plate
All of the above
An island arc forms
An ocean trench forms
2
Why are there so many volcanoes located around the Ring of Fire?
Because there is a lot of tectonic plates located there
There are many subduction zones found there
There are a lot of earthquakes
This region of the world has a very warm climate
3
This diagram show a ______.
cindercone eruption
lava dome eruption
stratovolcano eruption
shield volcano eruption
4
What type of volcano forms along subduction zones?
Stratovolcanoes
Shield volcanoes
Lava domes
Cinder cones
5
What type of boundary do subduction zones occur along?
Convergent
Transform
Divergent
Parallel
6
The force of an eruption is partly determined by the silica content in the magma
True
False
7
Which of the following does not indicate that an eruption will happen soon.
Recurring earthquakes in the vicinity
increase in snow accumulation
Changes in gas emissions from the volcano
uplifting of the surface of the volcano
8
Shield volcanoes produce high viscosity magma that is also light in color
True
False
9
How do stratovolcanoes form?
Low viscosity magma creates stackable layers
Uplifting fro the collision of the two tectonic plates
Hot rock fragments weld together creating the rigid cone shape
None of the above
10
What makes the most explosive volcanic eruption?
magma that is at a higher temperature
Magma containing a lot of silica
Magma from a shield volcano
Magma with low viscosity
11
What role does water play in creating magma?
Water is released from the slab, causes mantle material to partially melt
Water causes earthquakes to happen
Water causes the mantle material to rise due to changes in pressure
Water causes subducting slab to become buoyant
12
The series of volcanoes and the Hawaiian Islands provide evidence that ____.
violent eruptions happen here
The Pacific Plate is moving over a hot spot
All of the above
The Hawaiian islands are moving across a subduction zone
13
Scientists know about ancient eruptions of Mount Rainer from studying
All of the above
GPS data
volcanic deposits
ice cores
14
Where do shield volcanoes typically form?
Hot spots
convergent boundaries
Subduction zones
islands

Chapter 11 Review Flashcards | StudBud