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NOVA

A Volcanic Labyrinth

  • Aired: 01/02/2013
  • 02:59
  • Rating: NR
Thrihnukagigur crater is the only place on Earth where the anatomy of a volcano can be studied from the inside. When geologists journeyed into its heart, they discovered that a network of fissures links together distant volcanoes.
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A Volcanic Labyrinth
See the only place on the Earth where scientists can study a volcano from the inside.
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