Section 1 Vocabulary
Section 2 Vocabulary
Section 3 Vocabulary
Section 4 Vocabulary and Section 3 Vocabulary
100
A weak spot in the crust where magma has come to the surface.
What is volcano?
100
The pocket beneath a volcano where magma collects.
What is magma chamber?
100
The large hole at the top of the volcano formed when the roof of a magma chamber collapses.
What is Caldera
100
The large basin in California between the coast Ranges and the Sierra Nevada.
What is Central Valley?
200
Volcano belt that rims the Pacific Ocean.
What is Ring of Fire?
200
An explosive volcanic eruption of ash, cinders, bombs, and gases.
What is pyroclastic flow?
200
A mass of rock formed when a large body of magma cools inside the crust.
What is batholith?
200
A broad, bowl-shaped valley formed where the crust is bent downward.
What is Basin?
300
The molten mixture of rock-forming substances, gases, and water from the mantle.
What is magma?
300
Are covered by lava from a volcano's vent.
What is lava flow?
300
A slab of volcanic rock formed when magma forces itself across rock layers.
What is dike?
300
When magma hardens underground to form igneous rock.
What is intrusion?
400
A string of islands formed by the volcanoes along a deep-ocean trench.
What is Island Arc?
400
A volcano that is not currently active, but that may become active in the future.
What is dormant?
400
A slab of volcanic rock formed when magma squeezes between layers of rock.
What is sill?
400
A cone shaped hill or small mountain
What is cinder cone volcano
500
An area where magma from deep within the mantle melts through the crust above it.
What is hot spot?
500
A fountain of water and steam that builds up pressure underground and erupts at regular intervals
What is geyser?
500
A wide, gently sloping mountain made of layers of lava: formed by quiet eruptions.
What is shield volcano?
500
Tall, cone shaped volcano.
What is composite volcano
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