Exam 9: Volcanoes and Other Igneous Activity

Which one of the following best describes volcanism in the Cascade Range, northwestern United States?

A ________ is the largest discordant body of intrusive, igneous rock.

Matching. Please choose from one of the following answers. -the big volcanoes of Hawaii

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

In general, cinder cones are much larger than shield volcanoes.

The Icelandic volcanoes are related to plate tectonics because ________.

Repeated eruptions of relatively fluid lava from fissures can eventually cause an area to be covered by flood basalts.

Kilauea is an example of a ________.

On the blanks provided, write the name of the feature labeled. On the same blank, indicate with capital letters whether the feature is concordant (C) or discordant (D) and whether the feature is tabular (T) or massive (M).

Dissolved gases may comprise up to a few percent by weight of a magma.

What is the name of the chain of volcanoes below that forms at an oceanic to oceanic plate boundary?

Crater Lake in Oregon actually occupies a caldera, not a crater.

________ magma is the most abundant type erupted at oceanic spreading centers.

Powerful, explosive, volcanic eruptions can result in climatic cooling for millions of years following the eruption.

Paricutin is an example of a ________.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Another term for a volcanic mudflow is a(n) ________.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

Volcanic bombs originate ________.

Which region has the greatest concentration of currently active volcanoes?