classifications of a volcano Flashcards
1
Q
- have a large stature, broad summit, and gently sloping sides.
A
shield volcano
2
Q
- its form resembles a warrior’s shield
A
shield volcano
3
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
4
Q
- erupts non-viscous lava and mostly gives non-violent eruptions
A
shield volcano
5
Q
a short, conical volcano with steep slopes
A
cinder volc
6
Q
ejected fragments of hardened viscous lava
A
cinders
7
Q
- majorly erupts cinders or scoria using mild to moderate explosive eruption
A
cinder volc
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 volc
9
Q
a tall, steep conical volcano made of layers of tephra, ash, and viscous lava.
A
composite volc
10
Q
- called a stratovolcano because it is derived from the Latin word “strata” which is
the plural word for “stratum”.
A
composite
11
Q
Strata means
A
layers
12
Q
has an explosive type of eruption to eject heavier materials like tephra and viscous
lava
A
composite volc
13
Q
a steam-driveneuption as the hot rocks come in contact with water
A
Phreatic or Hydrothermal
14
Q
originates from the Greek phrear,meaning “well” or “spring”
A
phreatic or hydrothermal
15
Q
Eruption happens when groundwater or surface water gets heated up straight into steam by rocks heated by magma.
A
phreatic or hydrothermal
