WHAT WAS FOUND IN KOLA SUPERDEEP BOREHOLE
WHAT WAS FOUND IN THE KOLA SUPERDEEP BOREHOLE
Kola Superdeep Borehole is the deepest borehole in the world for nearly 20 years.
The primary reason for the Kola Superdeep Borehole was one of pure scientific intrigue. The team wanted to see if they could find anything interesting about the nature of the Earth’s crust.
By the time the team hit serious technical challenges, the project was closed down and deemed a great success. Whilst they were not able to reach their target of 15km, they did uncover some interesting information.
Prior to drilling, it was expected that there should be a granite-basalt boundary at around 7km depth. This was discovered not to be true.
In fact, what they found was a highly fractured area that was thoroughly saturated with water. This was highly unexpected, especially at such a depth.
They were also able to find evidence of microscopic planktonic fossil at depths around 6km. Another unexpected discovery was a large quantity of hydrogen gas.
UNEXPECTED DISCOVERIES FROM THE WORLD’S DEEPEST BOREHOLE
- There’s a lot of water down there.Hot mineralized water was found almost everywhere along the drill path. Everyone figured that the granite would be as dry as a stone. Who says you can’t get water from a rock?
- The Earth has gas.Unexpectedly, helium, hydrogen, nitrogen, and even carbon dioxide (from microbes) were found all along the borehole.
- There is no basalt under the continent’s granite. This was a huge surprise. Seismic suggested that at 9,000 metres the granite would give way to basalt. It doesn’t. The seismic anomaly that suggested basalt was caused by metamorphosed granite instead. This gave support for plate tectonics, which was a new theory when the Kola Superdeep Borehole was being drilled.
- There are fossils in granite6,700 metres below the surface.