Good morning!
Today we discussed three topic regarding plate tectonics: volcano spiders, P waves and S waves.
The U.S. is sending some volcano spiders to Chile for scientist there to aid in monitoring Mt.Chaiten. There could be a link between the recent earthquake and future eruptions. To learn more about Mt. Chaiten visit http://geology.com/volcanoes/chaiten/
The volcano spiders are carried via helicopters and lowered into the caldera of a volcano and/or left around the volcano to record changes.
(P)rimary waves are either longitudinal or plane pressure compressional waves.
(S)econdary waves are transverse or shear waves.
Which do you find most interesting?
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