BJU Earth Science - Ch. 8 Volcanoes

Vertical is to dike as horizontal is to ___.

an enlarged depression that is caused by an explosion or the colapse of a volcanic cone

Sills and dikes are products of intrusive volcanism.

Thick layers of igneous rock covering large portions of earth are called ___.

I must be able to write a stellar essay on these topics (don't choose all):

The internal energy of the earth that is sometimes harnessed for man's use is called ___ energy.

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

A good example of hydrothermal circuit is ___.

A rapid downhill movement of hot, solid, volcanic particles suspended in steam is called a ___.

What kinds of volcanoes would a YE geologist consider active on the basis of a biblical view of Earth's history?

Many more deaths occur from volcanic eruptions due to ___ than flowing lava.

Wall-like igenous intrusions are called.

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

Secular geologists believe that most of the earth's internal heat comes from___.

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

Volcanoes are made of ___ rock.

Geyser water is heated by magma.

Most active volcanoes in the world exist ___.

The geothermal gradient shows a constant rate of change in the earth's internal temperature.

streamlined mass of ejected lava that has solidified in flight

Geothermal power plants ___.

A scale that geologists use to classify the destructiveness of a volcanic eruption is called the ___.

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

a volcano that emits mostly cinders, ash, and bombs

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

a volcano that emits lava and solid debris in alternately quiet and exposive eruptions

Viscous lava contains more ___ that runny lava does.

a volcano that emits mostly lava in quiet eruptions

tiny, angular, glass fragments

Mineral terraces are often associeted with ___.

The VEI scale rates volcano activity ONLY on the basis of the volume of rock discharged during the eruption.

Flood basalts or basalt traps are ___.

The geothermal gradient is highest in the ___.

The largest volcanic eruptions in the history of the earth were probably similar to ___.

Magma that reaches the earth's surface.

a volcano having no historical record of eruption and showing no seismic activity

Which of the following is NOT a term related to a volcano's activity?

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

A mudslide caused by a volcano is called a ___.

According to the USGS, a volcano that has not erupted in historical times but is not significantly eroded is called ___.

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

Some batholiths are known only because their tops hae been exposed by erosion.

Batholiths and laccoliths are both types of ___.

A volcano is made of igneous rocks.

Which of the following volcaninc structures is the most common?

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