classifications of volcanoes Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

formed when fluid or non viscous lava exists in the volcano, quickly spreads out
from the vent, and hardens on a wide surface area.

A

shield volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

erupts non-viscous lava and mostly gives non-violent eruptions

A

shield volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

a short, conical volcano with steep slopes

A

cinder volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

its form resembles a warrior’s shield

A

shield volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

have a large stature, broad summit, and gently sloping sides.

A

shield volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

is a cone-shaped volcano mostly made up of
ejected fragments of hardened viscous lava that are called cinders.

A

cinder volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

majorly erupts cinders or scoria using mild to moderate explosive eruption

A

cinder volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

formed when cinders erupt from the volcano and heavier cinders pile up at the
vent and lighter cinders spread farther from the vent (and nearer to the base). It
erupts lava but cinders are not competent enough to allow lava to exit the main
vent. Thus, the lava leaks at the base of the volcano instead of over the cinders or
scoria. This is also why they remain short.

A

cinder volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

a tall, steep conical volcano made of layers of tephra, ash, and viscous lava.

A

Composite Volcano/Stratovolcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

called a stratovolcano because it is derived from the Latin word “strata” which is
the plural word for “stratum”. Strata means ?

A

layers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

has an explosive type of eruption to eject heavier materials like tephra and viscous
lava

A

Composite Volcano/Stratovolcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

a steam-driveneuption as the hot rocks come in contact with water.

A

Phreatic or Hydrothermal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

originates from the Greek phrear,meaning “well” or “spring”

A

Phreatic or Hydrothermal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Eruption happens when groundwater or surface water gets heated up straight into
steam by rocks heated by magma.

A

Phreatic or Hydrothermal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

is a violent eruption due to the contact between water and magma

A

Phreatomagmatic eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Eruption Results of a large column of very fine ash and high-speed and sideway
emission of pyroclastics called base surges are observed.

A

Phreatomagmatic eruption

17
Q

periodic weak to violent eruption characterized by fountain lava

A

Strombolian eruption

18
Q

This type of eruption forms cinder cone volcano

A

Strombolian eruption

19
Q

characterized by tall eruption columns that reach up to 20 km high with
pyroclastic flow and ashfall tephra.

A

Vulcanian eruption

20
Q

This type of eruption forms composite/stratovolcano

A

Vulcanian eruption

21
Q

excessively explosive type of eruption of gas and pyroclastics

A

Plinian eruption

22
Q

strongest eruption showing the biggest, and highest ash cloud with lots of
different-sized rocks

A

Plinian eruption

23
Q

explosive eruption that creates umbrella-shaped ash columns that can reach the
stratosphere

A

Plinian eruption

24
Q

characterized by fluid lava only with non-violent eruptions

A

Hawaiian eruption

25
Q

does not create any substantial ash column like the strombolian, vulcanian, and
plinian

A

Hawaiian eruption

26
Q

This type of eruption forms shield volcano

A

Hawaiian eruption