What Did They Find?
The relics were in excellent condition, particularly considering how long they had been buried beneath miles of rock. The rock on its own, by the way, was estimated to be over two billion years old!
Not What They Expected
They discovered an even more exciting find at the Kola Superdeep Borehole’s furthest reaches! Experts traditionally believed that the rock under our feet transforms from granite to basalt at two to four miles below the Earth’s surface when seismic waves were detected.