Geology Quiz

An unconformity is a buried ________.

Which of the following best characterizes an angular unconformity?

In the late 1700s James Hutton published his important work titled ________.

Which of the following is not a very long-lived, radioactive isotope?

Catastrophism ________.

The subdivision of the geologic time scale that represents the longest time span is called a(n) ________.

The ratio of parent to daughter isotopes in a radioactive decay process is 0.40. How many half-lives have elapsed since the material was 100% parent atoms?

Consider the names of the eras in the geologic time scale. What is meant by "zoic"?

Who is credited with formulating the doctrine of uniformitarianism?

Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?