Add Yahoo as a preferred source to see more of our stories on Google. River full of debris Getty Images/panaramka Earth's 4.5 billion year geological history is full of death and rebirth, mass ...

3. 25 Facts About Geologic Time That Made Our Brains Hurt 4. How Do We Know? A Glimpse into Geologic Sleuthing 5. Our ...

This image is taken from the Geologic Time Viewer, a project presented last week at MIT, which shows how materials created over millions of years in geologic time are now a part of our everyday lives.

Introduction -- Pioneer geologists of the American West / Dr W. Lyle Dockery -- Physical geology -- Regional geography -- Cities, towns and highways / American Association of Petroleum Geologists and ...