Researchers Had To Abandon The World’s Deepest Man Hole Due To Unforeseen Happenings

Granite To Basalt

There was yet another discovery that surely made the team very excited. It was a discovery that occurred at the farthest reaches of the Kola Superdeep Borehole. As they measured the seismic waves, the researchers had already predicted that the rock under our feet transforms from granite to basalt at around two to four miles beneath the surface.