What happens when molten magma or lava hits a natural gas deposit?
Huge Tunguska Explosion Remains Mysterious 100 Years Later (Hat tip: Bill)
Death from below?Tunguska trees look exactly like the trees after the Mount St. Helens eruption.
Instead of a cause from above, in the last decade some researchers have suggested the Tunguska explosion actually came from below. Astrophysicist Wolfgang Kundt at the University of Bonn in Germany and others have suggested that an eruption of natural gas from kimberlite, a kind of volcanic rock best known for sometimes holding diamonds, could be to blame.
"It would have come from the molten earth, some 3,000 kilometers deep (1,864 miles)," Kundt said. "The natural gas would be stored as a fluid that deep, and when it reaches the surface it would become a gas and expand by a factor of thousand in volume, for a huge explosion."
For support, he cited the pattern the trees fell in, as well as chemical anomalies.