A Path to the Past

Geological time spiral

This absolutely fantastic visualization of The Geologic Time Spiral was created by Joseph Graham, William Newman, and John Stacy of USGS. The visualization shows us the progression the earth has taken, covering thousands of years – “A Path to the Past”

The Earth is very old—4.5 billion years or more according to scientific estimates. Most of the evidence for an ancient Earth is contained in the rocks that form the Earth’s crust. The rock layers themselves—like pages in a long and complicated history—record the events of the past, and buried within them are the remains of life—the plants and animals that evolved from organic structures that existed 3 billion years ago.

Source: USGS

By , on 9 August, 9:43PM