ES 1010 UNIT IV ASSESSMENT

ES 1010 UNIT IV ASSESSMENT

About what percentage of the Earth’s population lives in the vicinity of an active volcano?

The most deadly and destructive of the pyroclastic flows from composite cone volcanoes are known as:

The Deccan Plateau Hot Spots and Hawaii Hot Spots are examples of:

Icelandic volcanoes, which occur along the Mid-Atlantic Ridge, are related to plate tectonics because they lie:

Visualize five horizontal sedimentary strata exposed in a cliff or canyon wall identified by consecutive numbers, 1 being the lowest bed (i.e. sedimentary stratum) and 5 being the highest. Which of the following statements concerning the strata is TRUE?

What are usually the most abundant gases emitted during basaltic volcanism (as measured during Hawaiian eruptions)?

Mount St. Helens is an example of which type of volcano?

The two general shapes of intrusive igneous bodies are __________ and __________.

What is the name of fossils that are widespread geographically and are limited to a short span of geologic time? These fossils can provide an important method of matching rocks of the same age.

Which of the following statements about volcanic gases is FALSE?

Compare and contrast relative age dating with radiometric dating. What are the strengths and limitations (if any) of each?

Volcanoes are generally not preserved in the geologic rock record as they are usually eroded away. However, the various materials erupted from volcanoes are often found preserved in the rock record. From what you have learned about the different types of volcanoes, how could you infer what type of volcano erupted in a given area based on the type of volcanic deposits now found as layers of rock? Give specific examples, and briefly discuss how some materials may be linked to different types of volcanoes.