National Geographic - When engineers began drilling into an Icelandic volcano named Krafla, things took a turn for the weird. The team’s objective was to approach the boundary of a magma reservoir 2.5 miles below the surface, tapping into superheated fluids that could produce geothermal energy. But when the drill was just over a mile down, molten rock began creeping up the drill.
On that brisk spring day in 2009, the engineers had accidentally hit a pocket of magma sitting right below the surface that no one knew was there.
Krafla is “one of the best studied volcanoes on the planet,” says Hugh Tuffen, a volcanologist at Lancaster University in the United Kingdom who wasn’t involved with the research. It has been repeatedly surveyed using a range of techniques, so scientists thought they had a decent grasp of its underground workings. “It’s remarkable that this magma was able to hide.”
The incident at Krafla is one of three....READ MORE
National Geographic is an American pay television network and flagship channel owned by National Geographic Partners, a joint venture between The Walt Disney Company and the National Geographic Society, with the operational management handled by Walt Disney Television.