Volcanos Flashcards
(10 cards)
1
Q
What are the types of volcanos
A
Sheild
Composite
2
Q
Sheild volcanos formed by
A
Very low viscosity lava flows
Which are formed at constructive plate margins + hotspots
3
Q
Where are composite volcanoes mainly found
A
Destructive plate margins
4
Q
Features of composite volcanos
A
Alternating layers of lava and ash
Have explosive eruptions
5
Q
Pyroclastic flows
A
Fast moving hot gas and ash
6
Q
Lava flows
A
Destroy property but move slowly
7
Q
Lahars
A
mud flows caused by volcanic ash mixed with water
8
Q
Tsunamis
A
Underwater eruptions - trigger big waves
9
Q
Volcanic gases
A
release of hot water Vapor, C02 sulphur dioxide +other gases into the air
10
Q
What do scientists use to predict eruptions
A
Seismic activity
Gas emissions
Ground deformities
Thermal imigary
