After completing this chapter, you should be able to:
- Apply basic geological principles to determine the relative ages of rocks.
- Understand the importance and significance of unconformities.
- Use isotopic data to estimate the numeric (absolute) age of a rock.
- Explain why an understanding of geological time is critical to both geologists and the public in general.
Thumbnail: “Rainbow Basin” (Public Domain; Mark Wilson, Department of Geology, The College of Wooster via Wikipedia)