Explosive secret of volcanoes
The Hindu
Volcanoes that for millennia have erupted a certain way have the ability to undergo unexpected changes
We all know the basics of volcanoes. They are spots on the Earth’s crust from where molten rock, volcanic ash and certain gases can escape from an underground chamber. The molten rock is called magma when it is below the ground, and lava when it erupts and may start flowing across the Earth’s surface. Volcanoes are broadly classified as active, dormant and extinct, based on their activity. This much is well known and part of our textbooks. But certain explosive secrets that volcanoes had so far hidden deep underneath. They were able to show that volcanoes whose eruptions have been consistent actually hide chemically diverse magma underground with the potential to thereby generate explosive activity.
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