Deep Underground Water Fueled Super-Volcanoes Three Billion Years Ago!

Scientists have discovered that ancient volcanoes were powered by water sinking deep inside the Earth way back when dinosaurs weren't even born yet. This wet crust sank into the hot mantle (the thick layer of rock under Earth's crust) and melted into fiery, bubbling magma. Who knew that splashes of water could help create such explosive volcanic eruptions?