ERTH 111- Types of Volcanic Activity Quiz
Study online at https://quizlet.com/_c2um50
1. A volcano is a constructional edifice formed from Lava, tephra
__________ and ____________.
2. The melting temperature of magmas is primarily Composition
controlled by _________________________.
3. The viscosity of magmas is primarily controlled All of the above: Degree of polymer-
by _________________________. ization, Temperature, Volatile con-
tent
4. The ease of degassing in magmas dictates the Explosive potential
____________.
5. The type of volcano produced is primarily a fac- Type of volcanic activity
tor of the _______________.
6. Erupting magmas with a high amount of silica Steep-sided domes
but low gas contents will produce ____________.
7. Erupting basaltic magmas with low gas con- Lava flows, fire fountaining
tents will produce _____________, while basaltic
magmas with high gas contents will produce
________________.
8. Phreatic eruptions occur as an external source of Water
_____________ interacts with magma.
9. The eruption of many thin, runny lava flows will Shield
produce a ________________ volcano .
10. A volcano type composed of a mixture of lava Strato or composite
and tephra is a ________________ volcano.
11. Cinder cone
1/3
Study online at https://quizlet.com/_c2um50
1. A volcano is a constructional edifice formed from Lava, tephra
__________ and ____________.
2. The melting temperature of magmas is primarily Composition
controlled by _________________________.
3. The viscosity of magmas is primarily controlled All of the above: Degree of polymer-
by _________________________. ization, Temperature, Volatile con-
tent
4. The ease of degassing in magmas dictates the Explosive potential
____________.
5. The type of volcano produced is primarily a fac- Type of volcanic activity
tor of the _______________.
6. Erupting magmas with a high amount of silica Steep-sided domes
but low gas contents will produce ____________.
7. Erupting basaltic magmas with low gas con- Lava flows, fire fountaining
tents will produce _____________, while basaltic
magmas with high gas contents will produce
________________.
8. Phreatic eruptions occur as an external source of Water
_____________ interacts with magma.
9. The eruption of many thin, runny lava flows will Shield
produce a ________________ volcano .
10. A volcano type composed of a mixture of lava Strato or composite
and tephra is a ________________ volcano.
11. Cinder cone
1/3
