5 Written Questions

1. A broad, gently sloping volcano built from fluid basaltic lavas
2. The volcanic rock ejected during an eruption
3. A mountain formed of lava and/or pyroclastic material
4. Volcano belt that rims the pacific ocean
5. A landform produced by repeated eruptions of fluid basaltic magma that builds up in thick layers

5 Matching Questions

1. Vent
2. Volcanic neck
3. Decompression melting
4. Dike
5. Pluton

1. a Hardened magma in a volcano's pipe
2. b An opening In the surface of earth through which molten rock and gases are released
3. c An intrusive igneous structure that results from the cooling and hardening of magma beneath the surface of earth
4. d Melting due to a drop in confining pressure that occurs as rock rises
5. e A tabular-shaped intrusive igneous feature that occurs when magma is injected into fractures In the surrounding rock

5 Multiple Choice Questions

1. A massive igneous body intruded between preexisting strata
   1. Laccolith
   2. Batholith
   3. Viscosity
   4. Lahar
2. A large mass of igneous rock that Formed when magma became intruded at depth, became crystallized, and subsequently was exposed by erosion
   1. Laccolith
   2. Viscosity
   3. Batholith
   4. Lahar
3. A small volcano built primarily of pyroclastic material jee Ted from a single vent
   1. Ring of fire
   2. Caldera
   3. Cinder cone
   4. Crater
4. A measure of fluids resistance to flow
   1. Laccolith
   2. Batholith
   3. Viscosity
   4. Volcano
5. A large depression typically caused by collapse or ejection of the summit area of a volcano
   1. Caldera
   2. Crater
   3. Lahar
   4. Pluton

5 True/False Questions

1. Sill → A tabular igneous body formed when magma is injected along sedimentary bedding surfaces.

   True        False

2. Intraplate volcanism → Igneous activity that occurs within a tectonic plate away from plate boundaries

   True        False

3. Composite cone → A small volcano built primarily of pyroclastic material jee Ted from a single vent

   True        False

4. Lahar → A mudflow made up of water-soaked volcanic ash and rock

   True        False

5. Crater → A large depression typically caused by collapse or ejection of the summit area of a volcano

   True        False