BIOL1300 Lecture 3: February 15_Environmental Geoscience II_Elizabeth Follett (1)
29 May 2017
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Document Summary
Modern prediction and prevention systems can help minimize volcano damage last class: volcanic impacts on global climate. Can usually see physical evidence on the outside of the volcano. Can measure using satellite measurements (show ground moving) or tilting meters on the ground. Possible that magma has formed a plug which does not allow the gas to emit leading to a volcanic explosion. Signature frequency that shows that the magma is moving inside of the volcano. Magma creates mini earthquakes at a particular frequency that we can measure and identify) Volcanoes at faults, tectonic interaction zones (submergence zones) An earthquake occur when stress is released inside the lithosphere, releasing energy in seismic waves. Stress released inside the lithosphere builds stress against the rocks inside the. Earth rocks will move and release energy in the form of seismic waves. Landslides underneath the ocean can trigger tsunamis. Picture: two sides moving relative to each other resulting line is a fault.
