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Mt St. Helens: Back from the Dead   -  Discontinued


Mt St. Helens: Back from the Dead


Item Number:
PBS NOVA6205
Price:
 
Format:
DVD
Length:
60 min.
Copyright:
2010
Closed Caption:
n/a
Producer:
PBS
Grade Level:
Grades 9-12
ISBN:
9781608832644
UPC:
841887012676
Summary:
When Mount St. Helens erupted in 1980, every living thing in the blast zone was buried beneath 300 feet of avalanche debris, covered with steaming mud, and finally, topped with a superheated layer of frothy rock from deep within the earth. It seemed as though Mount St. Helens might remain a wasteland forever. Then, to everyone's surprise, life began to bloom again. Over the course of thirty years, biologist Charlie Crisafulli has been documenting the dramatic return of plant and animal life to the barren landscape. But he has also tracked a new threat: The mountain, like the wildlife, is coming back to life. Soon after the 1980 eruption, new lava was bubbling up to the surface, and in 2004, a flurry of explosions blasted steam and ash thousands of feet into the air over Mount St. Helens. What force is driving this baffling pattern? Using GPS, magnetic mapping, and more, geologists are tracking the movement of magma deep within the volcano and revealing a hidden lattice of faults that lies beneath the volatile landscape. NOVA presents a pioneering look at the interplay between biology and geology that may help scientists predict future volcanic eruptions.




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