mars lab hw 1

mars lab hw 1 - A model called a dehydration embrittlement...

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Meghan Irwin Mars 1010L Although subduction zones are the reason behind many earthquakes and volcanoes, these zones are important to the economy and society. When scientists first observed subduction zones back in the 1930s, they noticed different layers within the zones. These layers are called Wadati- Benioff zones. Over the years, more research has been done to further understand Wadati- Benioff zones (WBZs) which has resulted to finding some zones that have a double Wadati- Benioff zone (DBZs). For centuries, scientists have been saying that earthquakes are caused by tectonic plates colliding. However, because of the high temperatures of the WBZs, earthquakes are caused by the melting of the plates which cause them to move.
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Unformatted text preview: A model called a dehydration embrittlement has been made to understand this concept better. The models shows how fluids are released by minerals that will then cause the high pressures and temperature that then result in earthquakes. The minerals that cause the high pressures are said to be from basalt which then transform into eclogite but there is no real proof yet. As more researchers are studying the WBZs, the understanding of the oceanic lithosphere is becoming more and more important. Scientist have also said that as more seismological stations pop up around the world, the global scale will be better fit for the near future....
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This note was uploaded on 03/25/2008 for the course MARS 1010L taught by Professor Jager during the Fall '07 term at UGA.

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