Earth Science 8 - Volcanoes

Volcanoes are made of ___ rocks.

The Circum-Pacific volcano belt is sometimes called the Ring of Fire.

What is structure #6 called?

The Canadian Shield is the largest shield volcano in North America.

What provides the force that causes magma to erupt to the surface?

Streamlined mass of ejected lava that solidified in flight

What is structure #5 called?

An enlarged depression caused by an explosion of the collapse of a volcanic cone

Magma that reaches the earth’s surface

Flood __ are thick layers of igneous rock covering large portions of the earth.

Batholiths and laccoliths are both types of

Volcano having no historical record of eruption and showing no seismic indications of activity deep underground

The eruption of Mt. Tambora affected the weather of the entire earth for more than a year.

Which volcano structure is in the picture?

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

Pillow lava forms

Which of these structure types is the most common for volcanoes?

What structure is #4 pointing to?

What is structure #1 called?

Which of the following is not a term relating to the activity level of a volcano?

What structure is #2 pointing to?

In volcanic areas, groundwater heated by magma is a source of __ .

Which volcano structure is in the picture?

Which of these volcanoes is located in the state of Washington?

The term tephra is used to describe lava that has cooled and solidified on the ground.

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

The internal energy of the earth, generated largely by heat

Sills and dikes are products of intrusive volcanism.

Which volcano structure is in the picture?

Volcano that emits mostly cinders, ashes, and bombs

The depression found at the top of most volcanic cones.

What structure is #1 pointing to?

What is structure #4 called?

What is structure #3 called?

Which of the following statements describes a typical young-earth creation geologist’s view of volcanoes?

Volcano that emits lava and solid debris in alternately quiet and explosive eruptions

Volcano that emits mostly lava in quiet eruptions

A depositional mountain built up by molten rock that has risen to the earth's surface through a vent.

The VEI of a volcano’s eruption is based on

Vertical is to dike as horizontal is to

What is structure #7 called?

What structure is #3 pointing to?

Tiny, angular, glassy fragments

Geyser water is heated by magma.

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

A hydrothermal circuit is best seen in

If a volcano’s magma is high in silica, the volcano will probably __ .

A vent in the ground through which hot gases escape.

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

A mudslide caused by a volcano is called a 

A pyroclastic flow or “glowing avalanche” contains both gases and hot solid particles.

Which of these lists is in correct order from smallest to largest?