Geology is the study of the composition and physical properties of rocks, minerals, gems and other related earth materials, including diamonds and crystals. Scientists gain an understanding of the Earth's history by studying its composition.
  • Geologic Processes
  • Geologic Time Scale
  • Minerals
  • Paleontology


Pliocene Epoch, the geologic epoch that began about 6,000,000 years ago and lasted about 4,000,000 years.

More To Explore

You Might Also Like

What can we learn from computational archaeology?

While archaeological digs are still hands-on projects, some computer programs can help piece together a more complete picture of the site and even what its inhabitants might have looked like. What else can the software tell us?

What's the archaeological method?

Archaeology used to mean reckless treasure hunting, but not so today. When even the most battered shard of clay can signify the world to an archeologist, how do the professionals plan and execute a dig?

  • Most Popular

  • Most Watched

Don't Miss