New research provides further evidence that rocks representing up to a billion years of geological time were carved away by ancient glaciers during the planet's "Snowball Earth" period, according to a study published in Proceedings of the.
On a recent 11-day raft trip through the Grand Canyon, geologists gathered evidence in hope that it would allow them to peer billions of years into the past. Using a relatively new technique, they were able to estimate the age of a mysterious section of.