Chapter 6- Volcanoes

Question 1

Caldera

Answer 1

Spanish for caldron large usually circular depressions that may be several kilometers wide, indicating that huge magma chambers are associated with the eruptions

Question 2

Shield volcano

Answer 2

Large volume, gentle, low angle slopes. Filled with Basaltic low silica magma. Set on mid plate or convergent boundary. EX: Mauna Loa Volcano, Hawaii

Question 3

Flood Basalt

Answer 3

So much lava has issued from the ground that it is referred to as flood basalt

Question 4

Lava

Answer 4

A type of magma is fluid rock that comes from a vent or fissure

Question 5

Magma

Answer 5

hot fluid or semifluid material below or within the earth’s crust from which lava and other igneous rock is formed by cooling.

Question 6

Composite or Stratovolcano

Answer 6

Tall with steep slopes; often irregular outline from the past explosions and rugged dome areas. Filled with andesitic, silica-rich magma at subduction zone. Usually on a convergent boundary setting. Example: Mount Pinatubo, Mount St. Helens