What happened to a huge chunk of Earth’s history? – The Great Unconformity

Great Unconformity

There exists something in geology known as “The Great Unconformity”. This is the observation that there appears to be a gap that appears to consistently exist for specific geological layers around the planet. What exactly is this Great Unconformity? The first observation of this was made in 1869 by John Powell at the Grand Canyon. … Read more

Two billion year old salt gives us insights into Oxygen


Roughly about 2.5 billion years ago the atmosphere of our planet dramatically changed – the quantity of oxygen rapidly increased and so we got breathable air. We have some new insights into it now, there is a new study. There exists a layer of salt deposits within a Russian geologic basin that was laid down during … Read more