Chapter 8 Earth Science : Volcanoes

A caldera is an enlarged depression that is caused by an explosion or collapse of a volcanic cone .

Geothermal power plants

Which of the following lists is in correct order from smallest to largest

Geothermal energy has become a major source of electricity in the US.

___________ a volcano that emits mostly lava in quiet eruptions

Which of the following is not a term related to a volcano's activity .

Batholiths and laccoliths are both types of _________.

A dormant volcano has no historical record of eruption.

Lava is magma that reaches the earth's surface.

A rapid downhill movement of hot, solid, volcanic particles suspended in steam is a __________________

Pillow lava forms

A spring that periodically ejects large quantities of hot water and steam is known as a__________.

Volcanoes can be classified by age, structure, and activity.

Which of the following statements describes a typical young-earth geologists view of volcanoes?

____________ Streamlined mass of ejected lava that has solidified in flight .

The largest types of plutons are ___________.

Ash is tiny , angular, glassy fragments

Some volcanoes that were considered dormant have erupted with disastrous results.

Most of the world's active volcanoes are located in one of two volcano belts.

Looking at a volcano from a distance, its most recognizable feature is its _______________.

Volcanoes are made of __________ rocks.

__________ is a volcano that emits mostly cinders, ashes,and bombs

Which of the following volcano types takes up the most land area ?

Geologists believe that the earth's interior temperature is highest in the ________.

Vertical is to dike as horizontal is to ______________.

The geothermal gradient is highest in the ___________.

Which of the following volcanic structures is the most common?

A stratovolcano is a volcano that emits lava and solid debris in alternately quiet and explosive eruptions.

The depression found at the top of most volcanic cones is called a ___________.

A volcano begins to form when magma forces its way to the surface and breaks through, forming a hole or __________.

Lava with the highest silica content usually

A mudslide caused by a volcano is called a ______________.