Exam 4: Volcanoes and Volcanic Processes

Which igneous rock comprises the Hawaiian Islands and most other islands of volcanic origin in the oceanic basins?

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

Oxidized, reddish, vesicle rich, mafic lapilli that pile up to form cinder cones are called ________.

Most composite volcanoes have a simple eruptive history dominated by one or two events.

What are the two varieties of basaltic lava flows?

The viscosities of magmas increase with increasing percentages of silica.

Which of the following best describes Black Tusk, a volcanic feature in British Columbia?

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

What volcanoes dominate in the Galapagos, Iceland, and Kenya?

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

What is the correct environment for the geologically recent, volcanic activity in the Yellowstone National Park area?

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

Water and carbon dioxide are the most abundant gases emitted from the mafic magmas of the Hawaiian volcanoes.

What volcanoes have the highest elevations?

Which best describes a caldera?

Which are usually the most abundant gases emitted during mafic volcanism?

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

Which type of volcanoes are found along the Cascade and Andean Ranges?

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

Large, volcanic depressions formed by subsidence and collapse from magma removal following huge eruptions are known as ________.