Geology’s Biggest Unsolved Mystery

This is geology’s biggest unsolved mystery called the Great Unconformity - where a billion years of geological history is just wiped from the rock record.

You can literally place your hand on the rock layers in places like the Grand Canyon and see the change in rock layers where there is a gap in our Earth’s history.

What’s even more fascinating is that during this gap, some of the most pivotal moments for our planet happened: complex life formed, oxygen built up in the atmosphere. But there