Exam 5: Volcanoes and Volcanism

An example of a shield volcano is:

An extinct volcano is one that:

What is the volcanic explosivity index (VEI),and how is it determined?

Shield volcanoes are composed largely of lavas of ____________________ composition,they commonly have slopes that are ____________________,and their eruptions tend to be ____________________ in explosivity.

Most volcanoes are located in:

A nuée ardente is composed of fiery hot gases and dust.

How is volcanism destructive?

When basalt lava is chilled rapidly in the water in an ocean or lake,it forms bulbous structures called ____________________.

An example of a cinder cone volcano is:

What does harmonic tremor indicate is happening beneath the surface of a volcano?

Why are there volcanoes on the west coast of North America but not on the east coast?

How could carbon dioxide gas cause so many deaths in Cameroon?

What type of eruption is mainly responsible for producing plateau basalts?

The volcanic explosivity index (VEI)is intended to:

The two most active volcanic zones are the ____________________ belt and the ____________________ belt.

An example of a composite volcano is:

Lavas of ____________________ composition are more likely to produce lava domes.

What produces columnar jointing in lava flows?

Lava domes form from:

Discuss what volcanologists look for in trying to determine if a volcano is about to erupt.